I’ve been casting with a spin caster a 18k gold wishbone and I keep running into the same problem over and over. I get a clear and full cast at the bottom of the mold but the top (closest to the pour hole, the metal doesn’t fill. Does anyone have any suggestions as to why this happens? I’m a new jeweler and trying to teach myself but I can’t quite figure this problem out.
Any insight is so helpful!
Thanks so much!