One thing that i might suggest is adding small sprues that extend a bit beyond your fine cage element - maybe even a sees of small balls or similar that serve as mini reservoirs. If your metal is the correct temp with some sprues of marginal thickness… there might be add some pull to the remote / extreme ends away from the button. If you are losing the existing metal it could be to some shrinkage. I tried it in attempt to fool the cast piece into thinking is further out there than it really is. It might eliminate some of your problem.
I cast some hand constructed wax pieces that had flow issues. It worked by directing the metal beyond the piece. I trimmed afterwards and had a casting without porosity and shrinkage issues.
March 30 |
Since you are in Albuquerque, stop by Rio and consult with the Tech support team. We are always available to assist with casting issues and have a lot of resources to help guide you through the process. We would be happy to offer any type of assistance we can to help you be successful in your venture.
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