are you using a propane burner ? and what sortof refractory in the furnace ?
anyway.. i managed to cast my copper block today
ive gotta get it machined (my dads going to do it at his work - i'd do it there but ive got no time with my own work)
it came out pretty good, though not perfect, the machining will fix that though. at least i know i can melt and cast copper. one thing, im not too sure why but i think it mightve been TOO hot, when i piured the copper about half way through pouring part of it went pop and sprayed little beads of liquid copper in the air, i was wearing big ass leather gloves, a clear face mask and a jacket so i was pretty safe but just be carefull
and oh yeah.. my furnace is made of ceramic fibre insulation rated to 1600 degrees celcius and i melted part of it while i was trying to melt the copper
the pics i got of it are pretty shit, the colours gone real bad as well for some reason. (once agian lol) and i dint try to get any of during the casting, didnt have time.
ill get some pics once its been machined and cleaned up better
damn ive got to buy a new digital comera, this things old as
