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 Custom made slide camper.. All rights reserved.

12/07/2014
Today was spent bench testing my 12v charging system/power supply.Now I know you can get off the shelf units however I have the background to make up my own without too much outlay as I already have a few bits and pieces.

Basically I have a 500w computer PSU with super quiet fan connected to a 150W DC 10~32V to DC 12~35V Adjustable Step-Up output so I can up the voltage to 14.5 to simulate a Solar panel, the output is then connected to my 20 amp solar battery charger (the PC PSU does not lend itself to modification).

I used my car battery in the bench test and was able to draw over 10amps for charging by putting the headlights on the vehicle on high beam.

As the battery was already fully charged when no load was present the solar charger would settle on float charge and draw around 2.5amps.It would sit somewhere in between depending on the load presented.I will have suitable switching in place for when the camper battery is being charged either through the vehicle when traveling, the solar panels when free camping and the mains if we decide to visit a caravan park.The total cost is very little as I have most of the components already and the dc to dc unit was only $8.15. I will however mount a larger heat sink to the unit for those warmer days today was only  3 degrees and we are now surrounded by snow.

I haven't written up a circuit diagram as it is all in my head , if anyone is interested though I'm happy to make up a diagram and post it here. I'm very happy with the results today after many hours and under load all worked as expected. I will be ordering another DC-DC unit as a spare now that I know it is suitable for the project.


22/07/2014

Not much happening at the moment as I've had a procedure in hospital last week and need to take it easy for a while, I must say it is very frustrating not being able to work on the camper.
It hasn't stopped me from doing some research and I believe I have found the perfect material for the shower cubicle , 3mm white Coreflute is very light and more than strong enough for the job, also considering in using this for the the underside of the wings for waterproofing much cheaper and lighter than aluminum composite @ $20 for a 1220 X 2440 sheet I will need about 4 to complete the shower.
The same place that supplies this will also make me a custom shower pan out of 6 mm pvc which will be folded and welded for just over $100 , a real steal if you ask me.

I hope to be back at it in another week where I'll start with the 12v wiring as this does not require any heavy lifting.

I have now included a live comments section where you can leave a message ask a question or offer up some ideas without having to supply an email address if you so wish, I will leave it there permanently if it takes off.Even if you just say "Hi from Sheboygan"  eg. It will be appreciated. 


24/07/2014

Got sick of sitting around so decided that installing some of the insulation was an easier enough job that requires no heavy physical effort.

One sheet goes a long way and will nearly do one whole side.I haven't glued it on so if any of it is in the way of wiring it will be easy enough to take off.

I've been giving some thought to how I will be fixing the composite aluminum sheets (Dibond) to the camper and after some research I have come across a discussion online where double sided tape was used together with a silicon based sealer and has held up for some years without issue.

Double sided tape is applied liberally and the sealant in between somewhat thicker than the tape, as the panel is applied the tape will hold the panel in place and act as a spacer so the sealant is not to thin, once the sealant has set it is the main fixer along with windows and other cutouts.

Many months ago I experimented with one such sealer by attaching an off cut of Dibond to a piece of pine , there is no way I could separate the two, using a hammer only buckled the Dibond. The only down side is if repairs are needed at a later date removing panels would be very labour intensive but at least they will never fall off and should have enough flexibility regards expansion issues.

I still have to decide which method I will use to join the panels, I can source panels large enough to do a side in one go though have to consider delivery and handling as I would need help with these.

I also have put some thought in to how the final camper will look like and made a quick preliminary drawing the old fashion way and using MS Paint while relaxing showing where the different materials will be fitted, such as the composite material , the Corflute and aluminum checker plate.

The Dibond will be gloss white , the corflute shiny white and the aluminum is available in two types

one sealed and shiny and meant to stay that way and another raw which will weather the price between the two is negligible, so I guess shiny and sealed it is.








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