I am trying to make a sword hilt out of sterling, and this requires
casting a 1" diameter spherical ball for the pommel. I am a complete
novice at this. One source said that the sprue should be as thick as
the thickest section of the piece, in order to avoid shrinkage
porosity. But if I connect a 1" sprue to a 1" sphere, the sprue
removal will be quite difficult Is there some way around this? Is
investment casting the wrong process for this object?
Forgive me if this question is too “foundry”, but silver hilted
smallswords were the men’s jewelry of the 18th century!
Thank you for your time.