If I was able to model it accurately, adjusting for shrinkage won't be an issue.Marcel Renshaw wrote: ↑Sun Sep 19, 2021 1:49 pm It would be possible to print a pattern for them. The thing to build into the printed pattern is a shrinkage allowance and also a way of locating the inner and outer pattern for the benefit of the foundry.
You would be wise to talk to the foundry you plan to use first as they sometimes don’t like to do things the same way as others and will tell you what they expect.
The only issue is I won't have a clue for any foundries in my area. I deal with one in work but they only deal with big stuff and numerous orders. If you have the contacts for the one you use I would be happy to follow up with them.