Hello! I’m setting up operations in my studio to do lost wax casting and looking at electromelts to melt my metal (I’m in a basement so torch melting is not an option). I’m wondering if I should go for a 1kg model or pay a little more for a 3kg model? I don’t have any experience casting and I’m having some trouble envisioning the typical metal weights involved, especially when factoring in the extra metal for sprues/buttons etc.
I’m going to be casting mainly silver, but also some bronze and gold, and probably flasks with 1-12 pieces each depending on size etc? I do cast some larger pieces like sterling silver cuff bracelets
Besides the upfront cost (and a slightly higher cost for replacement graphite crucibles) is there a downside to getting a larger electromelt?
Would I see a significant energy difference required to melt the same volume of metal in a 1kg vs 3kg melter?
Would melting smaller volumes in a 3kg melter allow more room for oxygen to contact the metal?
Any suggestions or inputs are appreciated! For reference I’m considering these two electromelts from Rio:
Thanks so much for your help!