I also am interested in any discussion about homemade tools. I
am begining to get into the hobby of silver casting and the idea
of spending a lot of money on tools is a little discouraging. I
have kept an eye out for inexpensive used tools in my area (San
Diego, CA) but they are hard to find.
I would like to build a vacuum casting table using a recycled
vacuum pump I’ve acquired. The pump is a little larger than the
standard vacuum pumps I’ve read about in the specs on casting
machines in the cataloges. The pump I have is a Robinair high
vac 10 cfm pump. Will it be acceptable for use in a homemade
vacuum table for investment prep and casting? The casting
machines seem simple enough to build. Has anyone built one? Any
source for plans?
I read an old book mentioned on this list about building your
own burnout ovens and other tools for home use but it may have
been in the pre vacuum casting era. I don’t know. Any
suggestions from those of you who have been down this path before
would be appreciated.