make little round divots in a charcoal bloc with a ball shaped punch. place your bits of metal “in” each hole and heat till your sphere is formed. like previous comments, the block will discourage oxidation on the surface of the ball
make little round divots in a charcoal bloc with a ball shaped punch. place your bits of metal “in” each hole and heat till your sphere is formed. like previous comments, the block will discourage oxidation on the surface of the ball