Mr. Dickerson ,do you have a simple drawing for your bellows? And maybe a few more pics? I'm wondering about the thickness of the leather you used, and valve sizes as well as the overall size.
Hopiing to build a set for our summer demo, they really get the kids interested when they can pull / pump the bellows
I used what they call rigidizer, a clear liquid you brush on. It has worked well. I used 1/2" brick on the floor to prevent flux from eating thru.
I have the leftovers, I built another forge, but the rigidizer has dried up in the jug(turned to crystals) not sure if I can re-constitute it ? If not I'll buy more