Quote:
Originally Posted by Satchmo
CS: I haven't heard of this group : do you have any contact for them?
Ian : No , I've got far too many projects to go that way  though its not a bad idea in the future. There are some excellent articles on home foundary in the old ATM series of books published mid last century by Scientific American.
I'm designing polishing tooling for a 32" mirror. I will probably go the route of aluminium sheet faceplate with tack welded triangular strengthening ribs on the back. |
I think using a professional casting firm will work out very expensive for a one off casting. Considered a subdiameter tool ?
Here's a mob we used from time when I was in Steel ,
http://www.jadinte.com.au/aluminium_castings.htm
You could try Newport Glass Works in the USA who may have what you need.