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I estimate from manufacturer to retailer there is a 50 - 100% mark up. Once tooled up, it's not that hard to do. The daft thing was my calculations showed that you only need half the volume of a retail battery. Then the penny dropped. They have double the capacity of cells required. Then...

5 seconds in and I decided I'm not doing 40 minutes of that. I priced up making my own a year or so ago. I think the break even point was about six batteries. The one thing seldom never priced in these things is the cost of their labour. Most work for free. If you want to work for free, call me!

New cheaper solution maybe. I've ordered a couple, so I wait in anticipation.

https://www.ebay.co.uk/itm/TRAVIN-EAGLE-INJECTION-MANUMOULD-MOULDING-MACHINE/154135450830?hash=item23e33054ce:g:beMAAOSw-AFfgvxd I expect I can make the tool.

Hence in my work I use hybrid composites based on likely failure points.

99 wildebus special connectors? At least it would use up the rest of the left over potting compound. ;)

I’ll have a look at some sockets (plugs) in the morning. You only need the head to peep through, then the rest of the body can be potted with some fluid epoxy or clear pu potting compound.

Now that’s an illuminating idea Dave. :)

I’m getting older, I just want to shove it in the hole and see if it’s happy. If not I’ll just pull it out. I don’t want to go for a walk to get a simple answer.

Well I have to admit to my lack of success. The naughty heater is still turning itself off! I checked my wiring diagrams and I do have a diagnostic wire. My controller has a diagnostic function. My wiring loom does not have a spare wire :( The original controller was volvo and did not have...

Would you be better of using neon's to avoid earth leakage?

I wonder if I could rig up some kind of "Wally" light to warn of reversed polarity. Mounted in the EHU socket?

I was unsure as to if it was overkill. Theoretically if I plug it into a reversed supply it should trip. So out I pop with my supply changer and plug it inline. I have a warning plug visible and as yet not seen a problem.

Wildebus had me salivating the other day with the idea of using an easyplus on the Betty build. At first this seemed like a tasty idea. Then reality struck as it's not available in 24 volts :( So back to my consumer unit. RCD protection from the incoming supply. RCD protection from the...

Just to let you know, all my posts are based on no practical experience and we keep this for decoration.

This is a very old problem when trying to charge a second batter. You really need a battery to battery charger to do it properly. You just won’t get enough volts by simply connecting the two together.

No, just heavily abrade the surface your going to laminate to and use about four layers of this https://www.easycomposites.co.uk/300g-22-twill-kevlar-cloth. It's slower to go off, but use epoxy resin to laminate it. Shop around I expect you'll find better prices. It will be seriously strong.

This is good if your panel is flat. I like the bit about sealing the ply, something often forgotten when making composite panels. For a curved panel I would still reinforce with aramid cloth of tape.

In Murky I wanted to circulate the air as much as possible. The original build had an eberspacher, but it had been removed by the time I got it. What was left behind the drivers seat was a little dog kennel. I mounted this just behind the front drivers wheel arch and put a foam filter inside...

I have been very naughty and not looked my air eberspacher at all since installing it around 12 years ago. I have noticed it shutting down early sometimes for the last couple of years. So the decision was made to service it, and I thought I’d share it with all six of you. ;) Planning ahead I...