Saturday the Fourteenth is Jason day

The wacky stuff that is alleged to happen on Friday the thirteenth finally arrived. Friday itself was quite boring but Saturday...

The first thing I did was to set out to do some welding to make a security screen for the lower back window. Thus, I got out my extension cord and found both the plug and the connector had disintegrated. The plug and connector were from Lowes (hiss, spit) and purchased new about 6 months ago. The cord had been used two or three times then put carefully in a closet on the bus and nothing put on top. In the intervening time, one plug had cracked and both plugs had broken away from the screw threads holding the two parts together. What a diabolical disaster. I can't believe Lowes (hiss, spit) had the cheek to charge for that garbage.

Working around the cable issue, I got my welding gear together and started welding with my latest rods. That didn't go at all well! The rods with no hesitation burned right through the steel.

Looking with dismay at the holes, I took my welding helmet off whereupon it immediately fell apart. Clearly Friday the Thirteenth was a late arrival! I gave up for a while.

After a rest, I carried on with plan B. That involved riveting metal strips onto the security patch. As the welding had torn up the edge of the steel sheet, I had to move the security sheet nearer to the center of the sheet of steel i had cut from an old fridge some weeks ago.
  

Having trimmed the steel and riveted the steel strips on the edge, i painted the passenger compartment side of the panel with anti-rust paint then with white appliance epoxy. At that, it was time to pack it in for the day.

Tomorrow I want to try to complete the installation, including installing it. As tomorrow has been declared by milady to be a shopping day, I'll have the opportunity to buy some needed supplies.

I need to get some plugs to cover the faucet holes on my handbasin since there won't be a faucet. I also want to get some white paint. 

Inside the bus, the temperature was 108 farenheit. That was pretty hot! As many busses in SC have white rooves, I think I will paint the roof of mine white. That will reflect some heat at least.

TThe next stage will be to add extraction fans. I have a usable solar panel that I can glue to the roof. Today I had it connected  to a CPU fan. It worked pretty well though I probably need to add a capacitor to collect low current in order to give the fan a starting boost.

I'm not initially going to have a battery or a generator nor a fresh water tank. Those can be added at any time as can a modified swamp cooler.

Scammed again!

You've heard me say before about what rubbish these solar cells and wind turbines are on many occasions. I do try every now and then to get this green nonsense to work. Today I pulled out my solar panel and connected a 12v CPU fan to it. I aimed the panel squarely at the sun at the perfect angle and waited. Nothing happened. Unsurprised I connected my 12v CPU fan to a 6v battery and it whirred away nicely, shifting a good quantity of air.

Just to be sure - the panel was sold as 12V 5W and the CPU fan was sold as 12v. It probably only consumes 500MA at most or 10% of the panel's rated output. It is therefore rather strange that the fan does not spin, given the figures. Now a cynic would probably say that the panel manufacturer was grossly exagerating the output of the panel. Yeah... I'll go with that. Having seen it at midday failing to make a 12v indicator panel light bulb glow more than very faintly I'm going to go with the solar panel is a load of rubbish.

Sadly, this is not my first foolish forray into the fantasy world of renewable energy. Years ago I had a small panel and I plugged it into my cellphone to charge my cellphone. As I didn't actually need to use that particular phone, I left the whole lot plugged up on a windowsill for an entire week. After that week, during which the sun shone firercly on the panel, the phone had enough charge in it to run it for 15 minutes. Bear in mind this was an old style flip phone. If I remember correctly it was an Eriksson T15 or something similar. Those were the days when a phone could be charged and left on standby for 10 days before having to recharge it.

It's very tempting to follow the hoohaa about renewable energy but the truth is that electricity generated from the sun and from wind is just nonsense. Looking at the wind turbines available for motorhomes and the solar panels, the electricity generated is truly pitiful and the cost is truly outrageous. In order to run a microwave the theory is that a standard microwave such as the one I tossed out a few weeks ago because it was shot, would need 1100watts to power it. In terms of my pitiful little $15 5W solar panel that can't run a fan or light a bulb, in order to produce 1100W, I'd need 220 panels. Given that the panel is about 12 inches by 8 inches, that's going to cover 146 square feet. That, by the way is probably more space than the entire roof of my bus. It would cost $3,300 too. Even if bigger more economical panels were used then the power produced would still be unlikely to power my microwave.

Looking at things another way, if my panel cannot actually produce its stated capacity but can produce about 10% of it then things look pretty bleak for solar panels. Assuming a whole roof covered with panels producing a fanciful 1100W but an actual 110W then that 110W would have to be produced for 10 hours in order to produce enough power to run the microwave for just 1 hour. Now I bet you're saying that nobody runs a microwave for an hour. Think again! That's a cheap-ass Rival microwave that costs $50 in Walmart. That thing takes 15 minutes to cook a plate of food. There's three meals and maybe a couple of drinks and the entire day's supply of power is gone. No mention of heating water to shower, running lighting or anything else.

So, what is the solution? Well, initially I just won't be wasting my time with electricity unless it's of the battery powered or plugin variety. Speaking of battery powered, I did buy some AA powered phone chargers. There is a possibility of another couple of solutions too. One is to put a 12v battery under the bus, connected to the main batteries when driving so they will charge and disconnected when camping but connected to the house circuits instead. That could be achieved with a simple, ordinary switch on the console. Actually that is probably by far the best solution!

Thinking about the battery under the bus, it would need a massively powerful switch to control the amperage produced by the alternator. Thus a switching relay is likely to be needed. There sure is a lot of electrical work I need to do under the bus besides this!

There are starting batteries available that also have air compressors and USB power connectors. They don't have batteries that are all that worthwile inside. Usually 20AH at most. Those are pretty similar to the uninterruptable power supplies used in most offices. Again, the problem is a miserly battery.

At the moment, electricity is a way off in the future. However I have tried a few things that just haven't worked out. Mostly it has been the solar garbage that has been the hold up. Solar power like wind power really is cloud cuckoo land.

Investigations revealed that it's possible

To put two 15 gallon barrels end on end on one side of the bus but only one on the other side. That's pretty much what I suspected. It's not possible to put them side by side due to there being insufficient space between the chassis and the skirt. Thus, it looks like I can squeeze in a 15 gallon freshwater tank and a 15 gallon dirty water tank on one side. There's no room for a black tank but that's fine. I went with a bucket solution anyway.

Today was one of those grey, miserable days that threatened and delivered on its threat to rain on everything. What with that and the darkness that comes with rain, nothing was actually achieved on the bus other than to put my latest bus purchases onboard for later use. Last night or this morning, I had an epiphany. I'd previously decided to put the barrels sideways because the ribs would act as stabilisers. Without the ribs as stabilisers I have to put stabilisers. I considered things like plastic door wedges etc but ruled them out as too small. Then I realised brackets would probably work. If the brackets are snug to the sides of the barrel then the barrel should not slop about. 

Lying in the yard from demolition of the hillbilly construction was a 14 inch bracket. As it is strengthened with folds, I picked it up and failed totally to bend it. Thus, 14 inch brackets were added to my shopping list. Clearly today was a shopping day - it just wasn't fit to do anything else!

The first port of call was the local Barnyard flea market where there was a CB kiosk. Those with longer memories will recall that on my trip out with the bus a few days ago, the flexible CB aerial was snapped off by a low hanging tree. Incidentally, it was that tree's turn to meet its maker yesterday morning. For days I had been plotting my revenge on that tree but had been too tired after work to be bothered. Yesterday however, m'lady had somebody in to plough the ground for crops. This is a homestead, after all! On its way out, the tractor clearly had encountered the tree and had snapped it off. Problem solved! It would however have been better timed if the tree had not been snapped off before I went to work. I had to go to the immense effort of getting out of my car to move the corpse before I could exit on my way to work.

Thus the first purchase was a longer CB aerial that I will install after I exit the property and remove before I enter the property! After that it was on to Tractor Supply. There, I found 8 more brackets, some chain that would support 450lb (15 gallons of water is about 125lbs) and some steel cable fasteners that looked idea to secure one end of the chain. The other end can be secured with my U bolts. With the length of the U of the U bolt, they can also be used to tighten the chain.

There are several tasks to be completed this week - the first being the electrical breaker box. Then there are the luggage restraints in the back closet and finally the grey water barrels. The fresh water barrel does not currently exist. Though I bought 3 barrels, they were all used and thus unsuitable for potable water. I'll do the fittings for a fresh water barrel but will have to wait until I am near a U-Line supplier that actually has new barrels in stock.

I've been thinking one way and another about the battery system and the ventillation system. Although I looked into installing a smaller 12v battery, I think my original idea was probably best. That idea was just to use tiny dedicated rechargeable lithium battery packs at $8 each. I figure 4 or 5 is all I'll probably need to power my tablet and phone over a few days without power. 

The solar fan is something I have investigated. There are several around but judging from what people seem to be saying, it's pot luck as to whether or not they actually work. Truth be told, the message coming across from all this solar and wind stuff is that it's very expensive. It's an idealistic thing that really isn't financially worthwhile. As an example, I could spend three or four hundred dollars on a set of solar panels plus about the same on batteries to get the same amount of power I'd get out of an 800w generator that I can get for $100. Given that I just don't have any real use for electricity with my butane stove, an 800W generator seems a trifle excessive! A 400W generator seems more realistic but such generators seem very hard to find. 

For the moment, the solar fan seems to be unavailable. The next thing I looked at was wind-powered extraction fans. Those seem to be massively expensive and available only in Britain though. There are some attic fans available but they're too tall. I don't want to raise the operational height of the bus beyond the three inches of the front vent. The alternative is a small computer fan and a battery or perhaps some kind of roof vent. Perhaps some form of anodised aluminum tubing could be used to draw air out by convection. That would seem to be the simplest and most environmentally friendly option with the bonus that it might even work during the night.

Plans to replace the top flashers with metal blanks still exist as does eventually a plan for a tow hook. There are quite a few underbus plans. One is to put a second video camera and another is to rewire the reversing horn but to a switch on the console. That way I can choose to operate it or not. It doesn't become one of those bloody annoying things that screams at people who aren't there at ungodly hours.

On the whole, things are looking promising. The biggest issue I have is with cutting through the environmentally friendly bullshit. As I've said before and it is a very unpopular argument, solar and wind power are the biggest most steaming piles of bullshit I have ever encountered. I have a 5W solar panel that I have played around with and the amount of power generated wouldn't light a fart let alone a light bulb. Years ago I was suckered into buying a solar panel after listening to the environmental bullshit. I wired it up to charge a flip phone and left it hooked up in a sunny place for a week. At the end of the week, the phone had enough power to operate it for a massive 15 minutes. Let's just say I was distinctly unimpressed. Solar and wind power just don't produce any worthwhile power but let's see who the proponents of solar and wind power are shall we? Impressionable students and salesmen actively trying to sell the crap. Now you know why it doesn't work!

Decisions, decisions... And the story of the idea shot down in flames!

Attaching the 15 gallon drums underneath the bus was intended to be accomplished tomorrow. That won't be happening tomorrow though. Today I took m'lady to meet some friends of mine and during an exchange of information, I found why one of my previous positions ended. It transpired that I had not done the rotten job that I had been told I had done. It turned out that the manager in charge of the department quietly disliked me. That explains why some of the training I'd been give was rather obtuse. Afterwards, she'd admitted she'd got rid of me because she didn't like me. Now that I find is rather unusual because most people (not all) do seem to like me (or if they don't, they hide it pretty well).

So, the upshot of today is that I was in Lowes (hiss, spit) on the way back. My idea had been to use a chain with a turnbuckle to tighten it to perfection. That, it seems, is not possible. Looking at Lowes (hiss, spit) turnbuckles, they were all adorned with labels along the lines of "will not support a human" and "do not use to support weight" and seemed to be made of zinc. How useless is that? I have seen people using chains to secure tanks under their vehicles and I'm pretty sure they use turnbuckles to tighten their chains. Now it could be that Lowes (hiss, spit) specialises in supplying an inferior and inherently dangerous product and that many people just don't read the labels, ripping them off and relying upon them.

I had been criticised for considering using nylon cargo straps to secure my drums. It seems that cargo straps are probably the best idea. They can be tightened easily and while not being allegedly very durable, are probably as durable as a plastic tank! So, the answer is to put nylon cargo straps. While I don't possess cargo straps right now, they're easily obtainable. They're better doubled up for strength. I know 15 gallons of water weighs just over 125lbs. Thus if the cargo straps individually hold 120lbs then I can put 3 or 4 straps giving either one or two redundancies for safety. 

While I Lowes (hiss, spit) I obtained some small wire nuts. I came to the conclusion that I'm better off replacing the top flashers with plain metal sheeting. The idea of turning them into extra turn and brake lights at the back is very worthy but in terms of practicality, means adding more complications. Thinking about the existing wiring, it seems to me that since it goes straight to the control panel, it could be linked to my small solar panel to use to keep the bus battery topped up. Indeed, it might even be possible to use the wires to connect a solar panel to charge the house battery. The house battery, by the way, only needs to hold enough power to charge my tablet and my phone. That's next to nothing! Certainly keeping the bus battery charged is a good idea. With a little care, the power could be redirected to power a small electric extraction fan at the back of the bus. That would give the option of using the power for the fan.

Another interesting idea would be to couple a small 12v battery into the charging circuit for the bus so the battery charges when the bus is driving or when solar power is going in but doesn't deplete the main batteries when it's being used to power the house circuits. Realistically, the simplest way of achieving this is with a simple switch on the driving console. Power goes into the house battery when the switch is on. When it's off, the circuits are separate though remembering to activate the switch might be an issue!

Tomorrow, I'm not sure which tasks I will undertake. I'll probably replace the worthless paper blinds though. I might then look at the front flashers or even take the bull by the horns and install the main breaker box.

What is that fuzzy plug?

Yesterday I posted a slightly fuzzy photo of my new inlet in the side of the bus. Many of you will not have seen a connector such as that before. There's a reason for that - it's not sold in Lowes (hiss, spit) or Home Depot (cough). It is designated as a Nema 6-30I. 

The Nema designation means that it's an inlet (hence the I) and will handle 30A at 250v. Unlike the normal Nema connectors used in the US (Nema 5-15), this is a twist-lock connector. Now the twist lock means that when the connector is inserted, it can be twisted and locked into place. This has the upside that it won't fall out but the downside that it's easier to damage the inlet etc by simply tripping over the power cord.

On most RVs etc the connector used is the TT30 connector such as the connector I installed in m'lady's front yard. Here we get to the nitty-gritty! Hunting around I could not locate a TT30 inlet for less than $70. Thus I went for a different connector. It makes no realistic difference. It'll work just the same. The only difference is that if I have to replace the cord then I'll have to build my own cord like I have been. I can't use off-the-shelf cords.

The upside of off-the-shelf cords is that they're available at most RV outlets. The downside is that they're sold at huge prices. Cords are available secondhand (probably red hot too) but would you trust a cord of unknown capacity? I won't trust anything electrical or electronic that's secondhand. I've seen too many secondhand electrics and electronics bursting into flames.

A subsidiary upside of having a bespoke connection is that because it's non standard, it's not as desirable to those that would wish to steal cables. Now I'm not thinking of a masked bandit in a black and red striped sweater with a sack labelled "swag" over his shoulder but I am thinking of less scrupulous individuals that "forget" their RV cord and "borrow" somebody else's cord but never return it.

I can see a day when RVs will largely not have cables any more. Look at it like this - at $2.50 a foot for 30A cable - the cables are just ridiculously expensive. The standard RV cable is about 50 feet. That represents about $75 of investment just lying on the ground for somebody else to pick up and walk away with. If they figure they can get a bottle of beer out of it, they figure it's been a good day's work. Heavens I've even heard of people's house air-conditioners being stolen and they weigh up to a ton!

With the rising price of copper and the almost static cost of generators, there's going to be a convergence. It will soon be cheaper to slip a $300 generator under an RV than to put a power cord. I don't really see solar and wind power as being worthwhile.

Investigating solar power, to produce the 10A at 120v needed to power a microwave directly, I'd need 1200W of power. Solar panels are $1 per watt wich does not mean that I'd need $1200 of panels. Because of the poor light at times I'd most likely need $2500 of panels just to run the microwave directly at midday. 

Batteries seem like a good idea but the cheapest deep cycle battery gives 100ah of power which is a misnomer because you're only supposed to take a maximum of 55% out of a battery before the battery gets damaged. Thus a $90 100AH battery is about $2 per amp hour or 17c per watt hour. 

In order to run a microwave for 15 minutes (thinking about the lowest power microwave in Walmart that takes 15 minutes to cook a plate from frozen and which coincidentally rusts to bits in 2 years), 300 watt hours of power would be needed at 10A. Now those two factors are very important. Remembering the 10% power loss from using an inverter (and ignoring the $300 cost of a 2KW inverter), 100A at 12v would be needed for 15 minutes. Most 12v batteries can't discharge more than 20A for more than a few seconds without getting dangerously hot. To be safe, think about 10A. This means 10 batteries in parallel, each weighing 50lbs would be needed to power a microwave. That's 500lbs of battery.

How much would a system cost that could power a microwave? Well, $900 in batteries, $1200 in solar panels, $300 inverter plus whatever I haven't thought of. That's a minimum of $2400. Of course if you went for lithium batteries, you'd need less batteries and be carrying less weight but be paying 20 times more for the batteries. EG a 300ah lithium battery is about $3500 and has a maximum constant discharge of about 50A.

So, the cheapest form of cooking power is a plug-in for electrical operation. The cheapest plug is a Nema 6-30. But cheaper even than carrying a generator is a portable gas cooker with butane tanks just like you'd use for camping! 

Those damn hillbillies!

Today I looked beside my interior sub panel and discovered I have 9 inches of space between the panel and the woodwork. That gives me ample space to install my main breaker. This means that I now do not need an underbody compartment. The socket box can simply be affixed to the inside of the skirt and a hole made for the plug to pass through.
Had I realised this many moons ago, I could have simply riveted the old hillbilly compartment door over the hole after taking out their nasty compartment. I would have saved several months as I taught myself to weld and built two compartments that I ended up not using. The first compartment (bottom - in grey and brown) was simply way too heavy for my liking. The second compartment (top) is better but is unnecessary extra weight.
In the end, I could have saved all that time and effort by ignoring what the hillbillies had done. Every time I tried to make use of whatever disaster they concocted, I found I wasted time and just had to fix their attempts before doing it my way.

Originally, I'd wanted to have an entirely solar-powered bus. I've since discovered that solar power produces electricity of such an inconsequential amount that it realy is just a stupid dream. In fact, unless it's done on an industrial scale I'd call solar power rather much of a scam. For the price of two solar panels that might or might not make much power I could buy a generator. For the price of the batteries needed to store power I could save a lot of weight and buy several years worth of fuel for the generator. Were I doing the bus again from the beginning, I'd use many of the lessons learned and rather than putting in a 120v system, I'd put a small underbody 4.25lb gas cylinder and no 120v supply. 

Just for laughs, today I bought a solar battery charger from Harbor Freight. I really don't expect much from this but if it recharges my AA NiMh cells then it will work on D cells too. I almost went for the suitcase solar panel on the basis I could probably rig that to charge either the LIon battery packs that'll recharge my tablet and phone or AA/D cells. Now the panel on the side of the box wasn't all that promising, to be honest but I thought I'd give it a shot.
I got it home and found it was somewhat of a challenge rather akin to the act of passing a camel through the proverbial needle to put AA batteries in the holders. Getting them out after might pose a significant challenge! I did not intend it for use with AA batteries but rather for D cells. If it works for AA batteries then it might be worth getting D cells because my LED lantern and my shower unit both use D cells.

12.5 hours for a single D cell looks pretty forbidding. That could mean several days given the fact I'm not likely to have optimal (middle of the Sahara) light. Given the size of the solar panel, I think this is more of a gimmick than something genuine. It's designed to catch the pennies of the curious rather than to provide worthwhile power.

Given that the battery holders are not that great and have a serious problem with gravity, I don't forsee a long life for this unit. Stripping it down to copy it, however, could be interesting. It should be possible to identify all the components in order to build a bigger, better charger that I could use to charge a realistic number of batteries. I have no problem with using NiMh cells as a power source!
As can be seen - this is the underside of the charger. How they expect the flimsy (I had to fix one already) contacts to hold batteries up, inside the unit remains to be seen. I rather expect that the contacts will snap fairly soon.

Meanwhile I relocated my butane torch and my butane refill cylinder. The torch would not take a butane charge. I suspect that the valve might have frozen. Given that I haven't used this in 5 years, it would seem likely. I pulled it out because I thought I might be able to use it to do some light brazing but sadly it appears this is not to be. It's not worth buying another - not at the current price of $18. When it was $10, it was fine. While I was thinking about it, I almost bought another main breaker box out of sheer laziness rather than cut and rivet steel plate over the holes I'd already made in it to situate it underneath the bus. I thought more of my money however.

Diesel is now $1.69 a gallon. I really need to get that 120v system sorted out before the price rises. I can probably put another 30 gallons of diesel in the tank. I need to be able to move the bus before I can do that though and with the main breaker attached by a cable to the bus and dangling on the ground, that's not currently possible unless there was a way to tie the whole affair up so it didn't drag on the ground.

Conceptualising

I had opportunity to continue thinking today. Normally, I just don't get a chance to do my own thinking so I have to buy pre-prepared thoughts from Walmart in the thought aisle. Usually I prefer the Indian spicy throughts with a side of Nancy's Nook. Anyway, I left Walmart with a couple of bottles of ideas in an unmarked brown paper bag.

Today I looked at different ideas for cooking, power and ventillation on the bus. That was prompted by the fact I am about to close-up a large aperture under the bus and that as it is, two compartments could replace the existing one compartment.

One idea I had was to put a gas bottle compartment for cooking and water heating. Lowes has some 4.25lb propane cylinders that are 9 inches tall by 12 inches wide. That sounded pretty interesting. Obviously it would have to be well ventillated so some kind of mesh would make the floor and sides. I have some mesh too though it's very rusty. New mesh is cheap enough. In the end though, I decided against this route as I don't really see the need for extra gas power.
For electricity I was thinking I might use those external cell-phone batteries and charge them from a folding solar panel rested against the windshield from the inside. Now that would charge my phone, tablet and mifi pad but not my camera batteries. Well, that's what I thought until I saw this website http://www.voltaicsystems.com. Actually, having discovered that site, many of my power problems are solved. Basically, I realised the only things I really need power for are my cellphone, mifi pad and tablet. Lighting is taken care of with an LED lantern powered by D cells. My toothbrush and hair clipper both run off AA batteries. My shower head runs off D cells too and in the event the batteries are dead, a manual option can be employed for all but lighting.

For ventillation I had the idea of using a fan to pump air from the ceiling in the bedroom out through a hole in the floor created by the hillbillies. That would be complicated. Better to close-up that ridiculous hole and make a roof vent instead. Now I looked for roof vents and found some interesting ones on the Amazon British website. They were horribly expensive though and only worked for single-skinned vehicles. Going further and back to the electric fan option, there are some solar fans. Perhaps mounted on the outside of the bus with suitable ducting and filters, they might be the solution. They'd need an on-off switch but would be a zero power option. They're also dirt cheap.
So, I don't need an underbody compartment for batteries or gas cylinders. This means I can just weld a plain sheet of steel over most of the exisiting hole. Had I realised earlier that I could have put the master breaker inside the bus, I could have just had steel conduit taking the cable to the power socket and done away totally with the underbody breaker box. Of course, one lives and learns. I didn't know anything about most of the things I have done before I started work. I am not a handyman. I am an office worker. I am prepared to persist and am not afraid to try new things.

Thinking ahead about water, I did see somebody else's conversion in which they had a handpump to pump water from a 5 gallon bucket under their sink. I deliberately have not installed a handbasin in my bathroom or kitchen. In the kitchen, it seems so pointless because everybody washes their dishes in a plastic bowl as it retains heat better than a metal sink. As for water disposal, I can simply chuck it down the shower drain. In the bathroom, the handbasin can be replaced by a bowl and a jug of water. Again the water can be chucked down the shower drain. I have thought about using a footpump to pump water out of an underbody tank. Now the downside of an underbody tank is that they freeze. I'm not worried about that with the waste tanks because 90% of the time, the drain cock will be open and it'll be draining to the ground. The waste tanks are just there for times when an open drain isn't desirable. The upside of an underbody tank is it can hold more. The upside of 5 gallon jerrycans of water mean it's unlikely to freeze as they can be stored inside.

Going back to ventillation, solar powered ventillation over the cooking area and the bedroom look very possible. The downside is they only work during the day and they will look a little odd from the outside. 

In terms of electrical supply, I have already experimented with a $5 USB charger and found it lacking. The other day I ordered a much larger capacity USB charger from eBay for about $9. If that works well then I have my power solution. I didn't realise I was so close to being completed!

In other news my rivnuts for the shower curtain supports arrived. I forgot to pay for my screw eyes so they will be a few days late as it was a few days before I remembered to pay for them.

Meandering toward perfection

Not feeling much like doing anything today I started by gathering up most of the garbage in the bus and by putting it all out in a big cardboard box. Then I gathered all my tools up and put them in the tool box. Now I might be able to find things. I put together a box of consumables such as paints, sealants, glues and lubricants and a box of electrical stuff.

Next I ventured outsde and derusted then primed a piece of angle iron that I found yesterday in the bushes. That will make excellent angles on the new breaker box compartment. I didn't do any welding - pretty much because I didn't really feel like doing any.
After that, I took an old enameled steel table top that I'd found in a junk pile and cut the steel for the sides of the compartment. They're roughly cut and will have the final cuts next time around.
Thinking about filling the hole in the side of the bus left by the hillbillies, I remembered the remains of the seat back that I used parts for filling in where a window was missing. It should be the same thickness as the bodywork steel. In any case, it's about the same size and will need minimal trimming to get it to fit.

After this, things remaining to do...
1. fit the 120v inlet socket.
2. Install two or perhaps all 3 of my 15 gallon drums as waste water tanks.
3. Fit drawer separators so things can be stored in the drawers easily and so china doesn't get chipped in transit.
4. Install a 12v battery system powered by a 30W solar panel.  That could use a NIMH battery setup. In fact I prefer NIMH to both lithium and lead acid.
5. Tow hook and tow wiring.
6. Rewire the schoolbus flashers to be brake lights and indicators.
7. Install a front door unlocking system.
8. Weld some steel over the lower window of the back door as a security measure.
10. Install a shower curtain.

That's about it. After removing the I beam underneath the bus, I eliminated my step which made getting in and out more challenging. To aid me, I spent $12 on a set of folding steps from Walmart. They work though I have to put my knee on the floor of the bus and hoist myself up. 

In terms of registering the bus as a motorhome, I might as well complete the forms and get that underway.

Are rednecks my salvation?

Today the plan was to practice welding thin steel only that's not how the day unfolded. The day itself was fine - bright, cold and dry. Enthusiasm for welding was non-existent although I did trek into the bushes to find some suitable-looking steel. Hunting around the bushes here can be very fruitful when it comes to finding steel, plastic, old-style glass Coke bottles and abandoned household equipment. Thank the Lord for rednecks and their haphazard way of dumping stuff they no longer want.

Having scoured around the bushes, I realised I need to finish the inside - that's blinds and shower curtains. The existing hillbilly cable compartment does work - it just doesn't look pretty. The plumbing works though I do desperately need to put a hook to hang the bucket. That will have to wait until I can figure out a way of doing it well.

Thus, I headed inside and started putting up blinds. Cutting them with the angle-grinder requires a steady hand - which I developed as I cut more blinds. Needless to say, I'd forgotten where I'd put the brackets for one set of roller blinds and had to have a darned good hunt to find them. In the end, they were in a Walmart bag that contained a few bags of jelly-beans (my weakness).

The roller blinds take some getting used to as they very often need manual winding for the last few inches. Having said that, they're easily cleaned, easily removed and I prefer them to curtains for the bus. Curtains would, of course, have been cheaper. They could have been simply sets of bandanas. I'm sure that since the local football teams are the Gamecocks and Clemson that I could have got Clemson or Gamecocks bandanas for next to nothing in the charity stores.

Closed, the blinds do not look bad. These cost $4.95 in Walmart at the mounts were 97c a pair. Not too bad. The blinds in the galley are just privacy blinds - not light blocking. They can be seen through the window tint as lighter areas. I did get a room darkening roller blind but that was $6.95 so I got that purely for the bedroom.

I'm getting some light-pollution problems on my phone camera at the moment. I think it's because I"m including the light source in my photos - the LED hurricane lantern. Anyway, in the photo you see my cheapo tablet and a very elderly 3 megapixel zoom compact plus my clock. After my Nexus died I figured it just wasn't worth spending a lot on a tablet since they're pretty well disposable. Indeed, I asked somebody how much they would charge to fix it and they wanted as much as my cheapo tablet cost!

Having done the main windows with blinds, there are the bathroom windows that have no kind of privacy whatsoever aside from tint and the other two half bedroom windows. Those windows I will put paper blinds over. I couldn't use paper in the kitchen because of the cooking aparatus. I needed something less likely to flutter in a breeze. The bedroom will get black, room darkening paper blinds. The bathroom will just get white privacy blinds.

I took the International logo off the front of the bus today - the grey paint around it was peeling so I removed the logo and sanded it down. Then I sprayed with the cheap, lighter paint. I'll probably slap some Rustoleum grey on it at some time. That's not a priority right now though. The priority is to get the bus operable as a motorhome which it pretty much is now.

Having done the shower curtains, I'll put separaters in the drawers and put my china in the drawers as well as giving the bus a darned good cleaning. The solar stuff can wait. That's not a priority. The breaker compartment needs to be done soon though. As far as an underbody battery compartment is concerned, I'm not too sure it's really worth bothering with one. It might just be better to charge a dozen or so AA batteries using solar power. Those could be used to power or recharge USB devices. Another thing I'll do is to mount my whiteboard on one of the walls. I have had that whiteboard for a long time and it does come in handy for things occasionally.

The whiteboard has an interesting history. At one time I was going to do face-painting and photography with really good posed photography - not the kind facepainters do. I interviewed three facepainters. One decided she didn't want to spend $3.99 on facepaints from Walmart and lied and kept lying about her facepaint order always going to arrive. Total timewaster. The second facepainter called to arrange an interview then called five minutes before to reschedule and after the third call to request a reschedule, I realised she was a timewaster too and told her that if she found it that hard to attend an interview at a time that she suggested then it was highly unlikely that she would ever turn up to work. She argued and demanded I didn't tell the welfare people she didn't show. I should have told them but quite honestly it would have meant extra work. The final facepainter suddenly announced midway through the interview that she was a lesbian and went on to talk about her girlfriend. That really had no place in the discussion but I glossed over and we agreed to work together. Needless to say that involved buying a whiteboard to write prices etc on. Then she never showed to any sessions. Again a total waster which is pretty much my opinion now of all facepainters. The redundant $6.95 whiteboard has come in very handy in my kitchen though and I expect it will

I thought long and hard about the underbody battery compartment and for the amount of power I'm likely to use, it's not really justified. I was thinking of putting a solar-powered extraction fan in the bedroom. That seems to me to be worthwhile. That'll keep the bedroom cooler in summer. That can pump air out underneath the body.

The less complications I build in, the better to be honest. This is why I'm aiming at simple, cheaper solutions. I've been thinking long and hard over the extraction fan in the kitchen. I know it's needed. I'm not sure whether to have a straight chimney with a cap and no actual fan with the chimney going up through the roof on one of the sides where it won't add to the height of the bus. Another solution would be an actual fan, drawing the air from above the stove and blowing it out through a vent either under the bus or through a vent hole in the aluminum sheet that replaces one of the missing windows. On the whole, as heat rises, it might be better to blow cooking heat and steam down and out. Nobody will notice an extra vent on the side of a bus!

It's colder than a witches tit today!

It has been below freezing for several days in a row. It's highly likely that I won't be doing any welding tomorrow. Today was just plain miserable most of the day. It was made even more miserable by a stomach thing that fortunately cleared up by 4pm.

Thus, at 4pm I headed out to Walmart, being slightly surprised that my car battery actually started the car. It didn't want to but it did start. So, while the mechanics at Walmart changed my battery (which was free), I went shoppng and got 4 more blinds and 4 mounts for my blinds. The cheapest blind at walmart was $3.95 but these were $4.95 roller blinds. For the other windows - in the shower - I suppose I could use the $3.95 blinds but I haven't given that much thought. I'm thinking more in terms of how to attach shower curtains to the ceiling.

Looking around Walmart, I saw some very interesting things but my mission today was explicit - blinds and battery. If I don't stick to my list then it's likely that I'll spend too much. Income is not unlimited and the last paycheck I was given has to have special consideration as it was printed incorrectly. Apparently it'll be OK with the issuing bank because they know of the error. My bank might be another matter entirely though!

Of interest were another D cell lantern for $20 - mine works very well though with just one, lighting is limited to a small area. For the potential battery I looked at the EverStart Lawn and Garden battery for $20. It was interesting but did not state its capacity at all. Given that all I would need to power would be fans and phone/tablet chargers I really don't need much power. I could probably get away with a 20ah standard battery and use only 2-3 ah out of it. Indeed, I could probably - if the USB connectors would handle voltages that low - use a 6v battery. That could even be a DIY battery made of NiMh AA cells. Now that would be definitely worthwhile. I have a pile of NiMh AA cells that I don't use.

As it's perishing cold right now, I was looking at alternate heat sources for my bus and chanced upon a Coleman gas heater. The one of immediate interest seems hard to obtain. It's called the Coleman SportCat but nobody seems to stock it. It takes a different size of gas cartridge and offers 14 hours of continuous heat per cartridge. That's definitely doable.

I'm not too keen on having multiple standards of gas cartridge or indeed multiple standards of anything but sometimes it is necessitated by cost and availability. Apollo 13 discovered to their cost why different standards are a very bad idea when their spaceship had a mishap. It turned out that the lunar lander air filters had a different fitting from the command module filters. Thus they had to rig up a solution in order to make the wrong filters work in the command module just to survive.

Clearly I need to add some more fire extinguishers but that was always the plan anyway. I did wonder whether I should build a bay under the bus to hold a couple of 20lb gas cylinders. Plumbing for gas needn't be expensive or hard and is very possible. The gas cooktop could be installed above where the fridge or cooler will be situated. Indeed, I looked at coolers today and saw one that would do that was $22.

In mind today were the schoolbus flashers. The plan is eventally to intergrate them into the turn signal and braking light systems. The existing reversing horn needs to be tested and connected to a switch on the control console. That way I can switch it on when reversing and off when not which would also give the option of having it sound when necessary and not when it's not or not when it's dark and would unnecessarily cause noise. There's a lot of systems work that could be done.

The aim right now is to get the blinds and shower curtains up. That will get the bus pretty much ready inside. I would like to have the battery/cable compartment refitted but this is not essential right now. I think with the blinds and curtains in place, I will be able to reregister the bus as a motorhome. I will want to put a couple of extractor fans - one over the cooking area and one in the bedroom but those can wait a little while.

If it's a nice day tomorrow (which it should be) the plan is to install the blinds and possibly get started on replacing the battery/cable compartment. The compartment will take a while. I need to experiment welding very thin sheet steel because the aperture under the bus created by the hillbillies is way too big for the new breaker box compartment. The new battery compartment will be quite small as it doesn't now have to carry a battery big enough to power the cooking systems.

It's always a toss-up which way to head with design and one person's error could be another person's salvation. I don't like gas - never have and probably never will. On the other hand the cost of a battery setup capable of powering a microwave would need a battery capacity costing $500 while my electrical system will cost maybe $50. A small battery such as the one planned could be charged from a smaller solar panel. Indeed, solar in this instance would work. This is even cheaper than the generator system I had planned earlier.

The only issue I am likely to have with tomorrow's welding is that the bus is probably beyond the reach of just a single one of my two 20A cables. One cable has Nema 5-20 connectors at each end but the other has a Nema 6-30 on one end which won't connect to anything other than the planned connector on the bus. The solution there will be to start the bus engine for the first time in 3 months or so!

I can honestly say that I am looking very much forward to getting the bus completed and ready for action. I want to see if I can get it ready and reregistered in time for the Battle of Aiken so I can take it for the whole Battle of Aiken weekend.

One of "those" days *sigh*

Today was a day when nothing went quite right. I woke with a headache which is never a good portent of things to come. After a leisurely breakfast of yet more Xmas dinner leftovers, I went outside and noticed the sky was overcast. Clearly no welding today because the instructions on the welder say do not use in rain and rain was forecast.

The steel I cut yesterday has bright orange rust spots on the freshly cut edges. That's not welcome but not unexpected. I didn't treat the edges as they'll have to be welded anyway. The rest of the steel is fairly rusty so I'll have to sugar blast the whole lot to clear the rust. Then I'll have to paint it with rust killing paint then scrape the areas to be welded and weld it all together then put yet more anti-rust paint and then a topcoat. I did, however, remeasure what I'd cut and aside from probably having to trim corners to fit around bolt heads, it's pretty much the right size.

Next I looked at the schoolbus flashers. I need  to switch the amber and red around so the ambers are on the outside. That was something I could do relatively easily so I hopped up on the hood and started undoing screws for it was a simple matter of switching the lenses around. Wouldn't you just know it! One of the screws refused to budge and the cross head became a cone. I'll probably have to drill it out now. At that point I said that given the way I was feeling, it wasn't sensible to proceed and packed up for the day.

I looked at my old red LED sign that had been broken in my car. The actual sign still worked but the mounting was broken. As I need a car cigarette lighter plug, I cut the cable off and tossed the sign in the trash. It was sad to see the sign go but it had paid for itself and I'd had a couple of years use out of it. I used to put that sign in the back window of my car and rent it out on fiverr.com as advertising space. People would pay $5 to fiverr to advertise their product for a week and I'd get $4 of that in my Fiverr account. After a very, very long time I amassed enough to deposit in my bank account and by the time they had charged me a fee to deposit into Paypal and Paypal had charged a fee to deposit in my bank account the money was even less and I figured given the time and the chargers on charges on charges, it wasn't worthwhile. So, yes - to the people who ask - I did make money from Fiverr but in the end it works out at about $2.50 per hour so it's really not worth the effort.

I checked out my solar panel and connected it to an electro magnet which then failed to pick up anything despite the panel voltage being around 16.7 volts. I'm really not that impressed with this solar stuff, to be honest. It all sounds phenomenal - I mean - who doesn't like the sound of free electricity? The reality is somwhat less than satisfactory. As an experiment a few years ago, I connected a powered off mobile phone to a panel and left it on a windowsill, facing the sun, for a week. At the end of that week, I powered up the phone and while there certainly was power there was only enough for about 15 minutes usage. I'm going to plug on with solar but I'm not going to be fool enough to believe that it's going to be majorly worthwhile. It might - if I covered the roof with panels - charge my phone every day but I doubt that it'll do anything more than that. Indeed,  as I said before - the amount of money spent on solar panels to charge batteries would pay for a generator and a whole load of gasoline which would charge the batteries in a fraction of the time, day or night.

My solar panel - for those who're interested is allegedly 12v at 5A. I have yet to see it do anything bar make a tiny light bulb glow very dimly when exposed to direct sunlight. My idea had been to connect the panel via my ciagrette-lighter socket in the cab to the battery to allow it to keep my battery topped up. I fear that the LED on the cigarette lighter socket might use more power than the panel can supply in a day!

The electro magnet I started the other day still needs to be completed. I'll have another go at that another day. I'm not feeling that glowing positive feeling at the moment what with the cloudy weather and the absence of success. This wonderful two weeks off for Christmas has turned largely into two weeks confined to the house due to the weather. Still, I have another week left - there's a huge oppotunity there for the weather to change its mind and give me glorious sunshine and dry days.

Out of curiosity I put the meter on the lighter socket and got 12.3 volts. Clearly something amiss there. The voltage should be higher - something in the region of 13.8v given that the batteries were charged a week ago. There could be some form of resistor or zener diode in the lighter socket, limiting the voltage to 12.3v. It's good to know! I suspected putting a solar panel on as a battery mainatiner wasn't going to be simple. Nothing ever is which is why though I was all in favor of an all electric bus I'm beginning to veer towards as little onboard electrics as possible. Indeed, I might even rethink this battery compartment and possibly just have a compartment for the main breaker box. That'll be a load lighter and smaller. It also means I can rivet most of that silly hillbilly cable compartment door shut and just use part of it as an access panel to my breaker box.

Thinking more about batteries, I discovered a source for C size NiMh cells. There seem to be people putting them together in blocks of 10 to produce 12v batteries with 10,000mah (or 10Ah). There seems to be something called a DC-DC converter which takes whatever voltage and outputs at a constant voltage. Thus, as the power in a battery declines its voltage will drop. The DC-DC converter maintains the voltage at a constant level, presumably at the cost of amperage. That answers my questions about how supercaps can be used. As their power level drops, so too does their voltage.

Given the low amount of power I need, given that I'm really only charging my phone, my $50 tablet and a $20 mifi pad, I'm really wondering what kind of power storage to use. Realistically, I probably don't even need a battery compartment for that amount of battery power! Still, I'll plug on because I might want to expand later.

Another epiphany

Toda started with the usual tummyache after eating too much on Christmas day. Then I headed outside to do battle with the metal that I dragged out of the bushes a few days ago that looked like an ideal floor for my battery compartment.

Cutting thin metal is always a challege for my angle grinder - which is now working perfectly thanks to the new carbon brushes and I went through several grinding disks. Good job I bought a second 10 pack of disks a while ago! Just look at the state of the disk I've just been using.

I cut the steel construction I found a few days ago, cutting the edge off one side and cutting it in two such that when two edges are welded together, the construction will be approx 18" by 29" which is about the size of my battery compartment.

As the steel had some handy folded edges, these will act as a strengthening bar down the center of the compartment. Very useful. I had, however to trim the excess fold off as it is somewhere water is likely to collect.

While cutting the floor of the battery compartment, a thought came to mind that has occurred before - namely why I'm even putting a battery compartment. I definitely need access to my main breaker panel and that's always best under the bus. Other than that, I can store the cables more securely inside the bus.

Given that I'm not putting a big house battery, the point of a battery compartment is somewhat questionable. Having said that, it does set me up for future expansion.

Thinking about batteries I was wondering about using NiMh batteries rather than lead-acid or lithium. Lithium batteries are just horribly expensive. NiMh batteries just don't seem to be available in 12v. This is a bit annoying! Out of interest, I looked up NiMh AA batteries and found I could get 48 for $24 and 3,000mah each. If they were put in sets of 10, giving 12v per set then I'd get 4 sets at 12,000mah or 12Aah. 

Thinking further about the NiMh idea, 6v would be way easier to work with just 4 batteries put in series. The downside is that all the charge controllers are set up to charge lead-acid or lithium batteries. To my mind, NiMh is way better than lead-acid because it doesn't gas and can be completely discharged without harming the battery.

Given that the only power I'd need would be to charge my phone, tablet and batteries for my LED lantern and my shower pump, I could probably get away with just D cells and a solar D cell charger. The D cells could in turn power a USB charger. Heaven knows how long that would take to recharge my phone though.

There are a whole load of different options out there for power. My favorite for cooling and for refrigeration at the moment are fans powered solely by solar power and a fridge powered solely by solar. The cold could be maintained in a fridge by simply using freezer blocks. The fans need only to remove heat when the sun is shining. As for the rest, lighting, the shower pump and phone charging - these can all be done from NiMh D cells. For the moment though, I shall continue the plan to install the battery compartment and the shower outflow.

Meanwhile, in a stunning development, the bathtub that m'lady often complained about has vanished. It didn't so much vanish in a puff of smoke but more behind a garden tractor and was hauled to one of the junk piles in the back yard.

It certainly looks better without the bathtub. For those with long memories and the ability to hunt through this blog, the bathtub came out of the original construction. It was used for most of the last year as a handy trash recepticle and had it not been full of trash, would have been easy just to carry.

Things are definitely progressing. The last thing done today was to paint the underside of the new bathroom vanity. This vanity will not have a sink. Instead it will have a removable plastic bowl that can be emptied either into a bucket or down the shower and hence into the bucket under the shower or onto the ground.
Apparently emptying water that's been used for hand washing is frowned upon. That seems to be just plain bizarre to me but I suppose if dumping grey water was approved, people would stretch it further and dump sewage too. Honestly though, as long as its buried properly even sewage can be disposed of outdoors without harm to the environment.

Small achievements building toward success

That's the way to do it! Today of note were several achievements in an otherwise dismal, dreary, wet day. I'd like to be able to claim major success but I didn't do anything major. The major stuff all accomplishes itself as it's all reliant upon the small but insignificant steps.

The first thing I did was to make a coil out of some wire, put my new permanent magnet inside and run 6v from 4 D cells through it. The magnet did twitch. Clearly I need to find some copper tubing slightly larger than the magnet in order to wind enamel wire around it. That should allow the magnet to slide easily and should give years of use. I just have to wind the appropriate number of coils around it.

The next success was more basic and less exciting though vital. I tried my old angle grinder without success. Banging it I could get a few spins from the motor before it stopped. I had a brainwave and changed the other carbon brush. I"d already changed one because it was broken. Voila! The thing worked when I plugged it in. Clearly that problem has been solved for the moment. The other one has a problem based around a loose connection. When I need it, I'll tighten that connector.

Lastly, I hunted around in the bushes on m'lady's 4 acres and found a nice piece of steel. It needs some de-rusting but cut with the angle grinder and welded, It;ll make an excellent bottom for my battery compartment. Unlike the hillbillies, I'll drill holes for water drainage. I'll also see about putting a lip over the door to stop water penetration.

The final solution to the power and cooking problem is, unfortunately, going to have to be a gas cooker where the microwave is currently situated. The microwave is rusted and beyond salvation. I"ll have to install an extraction fan - probably a 12v fan running off my small battery. I could run that through the window I blocked up or put a roof vent. On the whole, the window seems more accessible. I thought long and hard about other solutions but this seems to be the only one that makes financial sense. To spend $3,500 on lithium batteries, $300 on a generator or $500 on lead acid batteries to run the microwave or $40 on a gas cooker. That's $10 cheaper than buying a replacement microwave. The big bonus is because I've already done the electrical work, I can still use electrical appliances when plugged in. There's also nothing to say I cannot later just remove the gas cooker and install solar arrays, generators and solar panels.

Interesting!

I looked today more closely at my tyres. It seems that somebody has put 11R 22.5 on the back but 10R 22.5 on the front. Checking the inormation panel inside, both front and back rims are identical. Thus, both sets of tyres should be identical. This is very odd. I'll bet the guy that sold me the bus just got a mate to throw on the cheapest tyres that would vaguely fit.

Indeed, looking at the tyre sizing chart, it seems that I probably have 20x7.50 rims though I thought the panel had 20x70 written on it. The rims might not be original anyway. Looking again at the chart, there's a surprising degree of tolerance between tyre sizes. It sounds bizarre that I can fit a 9r22.5, 10r22.5 or 11r22.5 on the same set of rims. 

I didn't get anything actually done on the bus today. What with grey, depressing weather that was also pretty cold and Christmas shopping to boot, as well as a headache caused by the noxious perfumes inflicted upon the public by stores I really didn't feel like doing anything much. Indeed, I intended to buy a big bag of sugar to use for sugar blasting. Being Christmas and therefore sugar buzz time, there were no big bags of sugar left.

The new bathroom vanity top still needs to be painted but its a bit cold to be doing paintwork at the moment. Not just to be outside doing the painting but because the paint just won't dry very well in these temperatures. A look inside the hillbilly cable compartment showed it to have cobwebs. That's not welcome to the international President of the arachnophobes club!

Thinking more toward power options it looks costly whichever way I go. Solar panels are desirable though I'm wondering whether a wind option might be more economical. It would be tiresome to keep erecting and dismantling but would potentially offer more power while maintaining the non motorhome external appearance of my bus due to its removability. 

I got me some sugar!

Yup - after spending a rather unproductive time using soda as a blasting medium with my Harbor Freight air blasting tool, I located a small container of sugar that I poured into the blasting head. The difference was immense. I could bring the paint down to bare metal when I needed and managed to roughen the surface of existing paint. 

It is indeed regular cane sugar. The traditional thing to use is sand or preferably silica free sand. Given that sugar is a substance broken down easily by the human body, I'm not too bothered about inhaling minuscule quantities though I hold my breath while I'm blasting. Sand contains silica which causes silicosis - a really nasty and frequently terminal lung ailment. The best thing is sugar is available just about everywhere. A 20lb bag is cheap in Walmart while for sand I'd have to go further and pay more.

Lacking time to paint properly as it was getting close to dusk, I pulled out the first spray can I could locate. Meanwhile, I have been wondering whether I should change the paint scheme. On one hand, I can get grey fairly readily. On the other, I could paint the bus a more interesting color. I'll probably stick with grey on the basis that most of the paint is probably not going to peel. If necessary I can use a steel brush or sandpaper for occasions when the compressor is unavailable. 

One of worries is whether my welds are good enough. I'm going to have to find a real welder and ask his opinion. I think my battery compartment is going to be strong enough. Mind, I've just measured it against a nearby car battery. It seems that the door the hillbillies put on is not large enough to allow a full sized battery. Thus, my plan of using gas seems to be much more of a thing. I can build a smaller cage to hold a small gas container. No need for a huge one as far as I can see. I can get away with a smaller battery because it's not going to be used for powering mains equipment. I'm thinking small electronics such as my tablet and my phone etc.

Speaking of welds, I welded some scrap steel together. This is so that m'lady's niece's boyfriend can his destructive streak and try to destroy it. If he can then I'll have to look harder at my existing welds.
Looking at my bus batteries, they were down to 50% so I put them on charge to bring them back up to 100%. The bus has been sitting idle for months. That's not good for the batteries but one day I'll get around to installing my solar panel. That should keep the battery topped up.

The solar panel I have should keep the bus batteries topped up. I suspect a similar sized panel might be sufficient to provide for my daily electrical needs unless, of course, I decide to install a fridge that runs off 12v. As I've mentioned, I'm experimenting with Peltier elements and these form the basis of 12v fridges. Now a single Peltier would use around 60w or 120ah. To make a freezer, 4 Peltier elements would be needed, using 480ah. That's way in excess of what I'll set up to do. I figure 10-15ah is all I'll likely need if I use gas. Indeed, since my microwave is close to being deceased, it's not too much of a stretch to put a gas hob where the microwave used to be. indeed, I suspect that I might have been better off not installing the 120v setup at all but rather, installing 12v and gas. Having said that, I have what I have. It'll all probably work out for the best. The goal was to have all electric and while that is possible, it's not of immediate financial practicality.

Progressing again

Now that work has put up the shutters for the next two weeks, I can apply myself fully to working on the bus. Yesterday though I made a slight detour on my way to work to Walmart as my new tablet has arrived. Honestly, only one word sums this budget tablet up - fantastic! Sure, it won't let me run a couple of the apps I used to but it's thus far way faster than my Nexus 7, cost just about half the price and came with a keyboard case. The color even matches the galley in my bus.
  
Unlike my Nexus, it takes a SD card which means I won't lose locally saved files unlike my Nexus. It charges from the same micro USB charging port which I consider to be a great step backwards. Pin power connecters are far more robust. 

Speaking of my Nexus, when out shopping at 2am yesterday I noticed a company called "Digital Doc" in my local Walmart. Sadly it was closed but today I visited it. Given that such computer, tablet and phone repair places spring up quickly, flourish for a while then vanish suddenly - usually with a sack load of other people's equipment - I figured I'd best use it as quickly as possible before it vanishes. 

Arriving at the desk this morning, I asked about reflashing my Nexus and was told by the minimum wage yokel working there that they didn't do this. Now that's really strange since their website indicates that they do. Given then I had to stand in front of her and attract her attention from her mobile phone in order to talk to her and how after telling me the business didn't actually do what they claim to do and since she then failed to answer me with a suggestion as to an alternative business (or to acknowledge the question at all) I followed my golden rule. If somebody in the company with a geekish business is useless then they all are, and allowed my feet to give them a vote of confidence by allowing my feet to carry me out of their store. I don't see a long future for that outfit!

Returning to the bus, I had another go at welding. I'm not highly satisfied with what I did but then the weather was so cold I really didn't want to stay out welding. In fact, I didn't really want to start! I definitely need to get the compressor out and try to clean up the bits I need to weld with soda blasts. Now that I've worked on the blasting head, it might work better. For a bit of fun I welded two pieces of scrap steel together. M`lady's sister's daughter's boyfriend has threatened to test some of my welds to destruction so I figured I could safely let him loose on that!

Looking at the hillbilly cable compartment, it seems I have indeed correctly measured the size of the box I'm building. The next step after completing the welding will be to install the new compartment. Unlike the hillbilly compartment, my compartment will have a floor that will allow drainage. Indeed, I might even use a steel mesh rather than a solid floor.

I have various ideas about the battery power setup. Initially, since my power budget is minimal, I'll probably just have a small battery. All it has to operate is fans, lights and chargers. In fact, my 5A solar panel could end up mounted on the roof to charge the battery. That might provide 2.5A for 5 hours a day or about 15AH so the battery could be really small.

The goal at the moment is to get the bus ready to be examined in the reregistration process. 

Invaders from Mars arrived today.

Or perhaps that's what m'lady and her dogs thought when they ran, screaming, for the hills when they saw me in my welding outfit.

Today my welding was much better. Indeed it looked a lot closer to what a professional would do.


On the whole, I was happier with today's welding. Unlike last week I sprayed my welds with rust killing paint because welds are more prone to rust. I'm not sure how much more welding I should do but as I'd become tired, it was time for a break. After that the sun went and hid itself below the horizon. Talk about inconvenient!

I don't know what that website I was reading yesterday was on about but I find welding easiest at about a 45° angle. I suspect like everything else, most of these websites are set up by self taught welders each of whom uses a different technique that they swear is the one and only correct way of welding.

During today's welding I was getting on so well that I exceeded the welder's duty cycle and it shut down to cool off. I was getting some lovely thick welds. It seems a welding rod is good for about 4 - 5 inches. I even managed to build up to fill a 1/8 inch thick gap where I oopsied in my construction. On the whole, this is pretty confidence building.

I'm reasonably confident that today's welding will hold up to the test of use. My next task will be to remove the old hillbilly cable compartment and door then to install my own. Before I do that, I'll probably cut sides and a base for it that can be attached when its in situ. Those will probably be riveted into place.

Meanwhile, I put more silicone caulk on one of the roof seams while standing on a stepladder. I suspect I might need to add more. There's definitely a minuscule leak there.

While I welded, I connected my Peltier setup to my solar panel. Every now and then I'd go back to it and feel to see whether one side was warm and the other, cold. By the end of the day I'd not noticed any difference. This does not surprise me in the slightest. My luck with electronics is never high. Things that should work or are reported to work rarely do. In fact, it used to be 50/50 whether purchased ready made electronics would actually function. These days the percentage of DOA electronics is lower but they still exist. Electronics always seems such an absurdly hit and miss area.

I was reminded of a website I saw before I tried my Peltier setup. The Useless World of tge Peltier Effect Dehumidifier https://secretscotland.wordpress.com/2013/09/13/the-useless-world-of-the-peltier-effect-dehumidifier/ in which was documented one fellow's miserable experience of Peltier equipment. Drawing only 60 W and claiming only 600 ml collection per day (conventional claimed 300 W and 5 litres per day) the numbers seemed reasonable.

Sad to say, the reality has not been anywhere close.

In fact, having run the new dehum under various ambient temperatures and humidity levels, it barely manages to fill its little 600 ml tank in a week, let alone a day.
I really wasn't expecting anything spectacular from the Peltier unit but was hoping for more than *nothing*. Still, I can experiment. It could be that my 5W solar panel wasn't producing enough to tickle a 60W element - which is the most likely reason.

So, over the next week or two I intend to finish installing my cable compartment. Having done that, I'll be in a position to file to have my bus reregistered as a motorhome.

Ouch!

Yes. I might have to lie down in a darkened room for a few weeks. I went shopping and it was expensive! My 10-2 electric cable was double what the price of 12-2 cable would have been. Still, I now have a cable suitable for outdoor use and capable of carrying 30 Amps.

While I was out I picked up some plastic tubing and connectors. Not so much as to keep the cable dry underground but more to protect it from an errant shovel.

Next on the list was bolts to make an electromagnet but while I was in the store, I picked up some "super strong" magnets instead that I thought I'd try with the existing Chinese electromagnets. And of course a sledgehammer.

Needless to say, when I tested the super strong magnets against each other, they repelled nicely. Putting them on the electro magnets did nothing. Whether the current was forward or reverse, the electro magnet did not repel the super strong magnet. It's all really rather odd and seemingly defies the laws of physics.

Needless to say, when the total topped $100 I needed to go for a lie down! The electric cable was the most expensive part. Thinking about it though, with the way my motorhome is set up, I could get away with just 20 or even 15 amps. I could have put a 20A outlet in the yard and saved the $30 on cable but had to spend $20 on a lower rated breaker for the bus. Given the saving would have only been overall $10 I went with the bigger cable.

I had a look at solar panels and lithium batteries online. Then I sat and did some calculations. My maths for my microwave is wrong. I'd been reckoning on needing to use it 3 times a day and to cook a plate full of food from frozen which takes 15 minutes. As there will be only a cooler in the bus and not a freezer, nothing will be frozen. Thus, it will likely take only 5 minutes per plate.

5 minutes per plate is around 8 amp hours. Given the microwave will pull less than 100A then a smaller lithium battery should do. They can put out 100A continuously without breaking a sweat. Still, even a 30A lion battery is ludicrously expensive at around $200-$300. The low weight is very tempting as is the long life.

Thinking about power, I really don't need much. The cooler can be kept cool overnight using freezer blocks and powered straight from solar panels as can ventilation. It's only cooking that needs battery power. That and charging cellphone batteries. I could probably be very happy with 40AH.

Looking at solar panels, it seems an expensive way of doing things. It seems to be $2 per watt for solar. Given that a 40Ah battery would contain 480 watt hours and that would be about what is used in a day, I'd need to generate about 500wh. That means two or possibly 3 solar panels to be able to use the microwave three times daily. That's an expenditure of $600 on solar panels plus $300+ on batteries. Add in other stuff such as charge controllers and inverters and the cost would top $1,000!

Going back to minimal power usage, if the cooler was powered solely from solar panels then a smaller lead acid deep cycle battery would do all my cellphone etc charging. Thus, I could potentially get away with just a 20ah battery. Cooking would have to be done with gas and there'd have to be a battery powered extraction fan to eliminate the steam.

Again, solar power looks like being way too costly. I'm wondering again about wind power. Now that I have a welder, it shouldn't be hard to put together a wind turbine, even if it only runs a bicycle dynamo. That should still provide ample power to charge such small batteries.

Thinking more about the microwave, since a $3,500 lithium battery would hold 300ah, that would probably keep my minimal 30-40ah daily going for at least a week. Plugging in once a week would eliminate the need for solar panels.

Now, given 5 hours of half sun per day, the power needed to fill a 300ah battery would be 3,600Wh which would be 1,500 Watts of solar panel or 15 panels at a cost of $3,000. Basically, the perfect electrical system would be around $7,000. Now you can appreciate why I put a plugin for the microwave! Look at the prices of lithium batteries.

So, to recap, I'm probably not going to use much in the way of battery power since batteries and generation are expensive. I'll probably get more solar panels but rig them to hang inside the cockpit where they'll be protected and will afford added privacy.

Power solutions

Today I saw the perfect solution to my power problem. Lithium ion batteries look perfect. Looking at microwave usage at 1000W power consumption plus 10% loss from the inverter I'm looking at needing 1100W. Dividing 1100W by 12 volts gives 91.7 amps.

There is a very nice battery available that weighs just 28lbs. The size is right. It'll give me 100A output which is excellent for a microwave. How much heat is lost and how long it'll run at 100W without temperature shutdown is unknown.

Being a dream battery, its also a fantasy price. $1300 does look ridiculous. On the other hand, if it fulfilled all of its promise then it might be worthwhile. To get 100AH one would need two lead acid 100AH batteries. To get 100A from lead acid batteries I'm not sure how many would be needed. My best guess is about 5. That would be around $500 plus the weight penalty. Each battery would be 55lbs for a total of 275lbs.

Clearly going down the lead acid battery route is a bit like using an abacus instead of a calculator. Knowing this better technology is available confirms my existing plans to use minimal 12v battery power.

I'm pretty sure that I'll use solar panels to power a dehumidifier directly and to power a ventilation fan directly. At night that isn't so important as its cooler and generally lower humidity.

I definitely need to charge some battery that can recharge my phone though. Perhaps a simple 6v lead acid battery. I'll have to give that some thought.

Walmart had a sale

In that sale there was a roll of foam bedroll for $8. Very useful stuff! I bought a roll and will use it to make a honeycomb to put in my drawers in order to protect my crockery. I prefer real crockery as its easier to get clean than plastic crockery - particularly when its handwashed!

Meanwhile, a tragedy struck a couple of days ago. My old Sonicare toothbrush died. The batteries in them degrade over time until they finally just won't hold a charge. As they're sealed unit batteries, nothing can be done. It's quite frustrating and I really didn't feel like spending $100 on a brand new unit. I liked the small head and the way it really worked.

The problem with the old unit was that the charger ran solely from mains voltage. That would have meant a big battery and an inverter in the bus. I'm not a fan of inverters as they waste power.

Bravo! It seems there's a Sonicare battery operated tooithbrush for $10. I got one. I'd been wondering how I was going to work around my toothbrush needing mains power. It takes two AA rechargeable batteries. Now those can be charged from solar power!

By now you'll have noticed two things. The first is that the sink unit isn't very clean. The second is the water dispenser. Underneath the sink is a bucket - just like the one destined for the bus. Yes, I do live in a low rent place!

Since batteries are expensive, the plan is to make a compartment that will carry two batteries. I might put a single battery just so that I can charge my phone etc overnight. As much as possible will be manual. This will be a low power consumption motorhome.