I am currently e-mailing foundrys trying to find someone
casting 398 alloy. Currently waiting for a responce from Leitelt
Brothers INC  (info@LBfoundry.com <mailto:info@LBfoundry.com>) located
in Chicago.  My gantry router is running and I pick up some 1" MDF
tomorrow to cut patterns for the side housings. Apparently 1.3% oversize
patterns are required for aluminum alloys or if your are using a
pattern makers scale it is 7/32" per foot oversize. If you happen on a
foundry using either 390 or 398 let me know on the yahoo e-mail since it
seems a little off topic for the rotary engine newsletter.

george grimes


Ok george I did send a revised dwg to jeff to see if he can machined the parts you said you can make the pattern if let know

Jean