Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Nick,
Since a welder costs $300, I figure I could get $100 per clothespin welder, no?

The side pieces of wood align the clamping action.
The 2mm hole holds onto the belt, you thread each end, one per side. Hold the clamp open and with a few mm of belt poking into the middle, use a lighter. And soon as you see a wisp of smoke, release your fingers and the clamp shuts perfectly aligned. Let it sit for a minute or two as you measure, prep your next belt.

Press clamp again to pop apart, pull belt out and triim mushroom. Mushroom isn't really a mushroom but rather a paperthin since smooshed flat during welding.