Hey guys, parts of the furnace i ordered arrived(the crucibles and casting kit). I was really excited so i made a sand mould with no intention of casting it as some practice, and to try it out. i used a 6x5' flask with premixed greensand and hygroscopic parting powder. i just want to know the purpose of a runner bar. is the filling hole meant to be at one end of this and the overflow hole at the other? thanks, just wondering what it's for. btw, the mold was of a lions head, like a fridgemagnet, very thin with flat base. turned out beautifully but i know now that when i really want to do it in a couple days time, i need to insert the copper pipe into the cope from the top, not from inside
