I have the Rio version of the Electromelt (which I love, btw) but
have a question about reusing sprues and buttons.
I’m relatively new to casting, and have been making sure that I use
a 50/50 mix of old and new metal for each pour. Until now I’ve always
cut up the sprues, and have had small buttons, so I did’nt worry
about putting them in the furnace to reuse. However, I’ve graduated
to doing larger flasks, with larger sprues and buttons, and can’t
figure out how to cut them down for melting. Is it necessary to have
them in small pieces in a furnace? How big of a chunk can I get away
with? Some of these sprues (bronze) are pretty hefty (50 grams) and
there is no way for me to saw them thru.
Any advice is much appreciated!