Yer a veritable artist! I understand the concept(s) but have just never got around to doing it yet. Ive made a lot of stuff for the boats like stuffing boxes and rudders and a myriad of other deck hardware stuff that ultimately, I had to fabricate from flat stock etc and then braze and then machine for "one-offs", whereas casting wouldve been way less time consuming.
So youve got a refractory lined kiln; what do you use for fuel? Propane? Charcoal and air? Ive looked at bunches of "home made foundry" stuff on line... quite a big following. Id like to make some bronze carbide cannons someday! ws