Hello awemawson My sand is just ordinary green sand. Have you still got the induction furnace?
Hello JonIndigoman The crucible is an A12 clay graphite type.
I still have the induction furnace, and now I even have a big enough 3 phase supply (160 amps per phase 415v) to run it off rather than use my generator, but I'm ashamed to say I've not recommissioned it since I moved here 4 years ago. Been building workshops etc, and now we've embarked on a complete house re-model! I have however built a non-inflamable annex to the main workshop specifically to house it.
AWEM