Web making your own low cost vacuum chamber for removing bubbles from investment when making jewelry using centrifugal casting. Web for vacuum casting, you need a very fast pump, with an ultimate vacuum that doesn’t really matter that much. Web the two objectives in using a vacuum pump for plaster degassing are 1:
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Web i’ve been making jewelry as a hobby in my garage for 6 or 8 years and want to get rid of the small and very limiting centrifugal casting machine and build a vacuum.
