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Posted by Paul Moore/RG-G INC
on 10/3/2006, 7:14 pm, in reply to "machining .250 holes in breech casing."
209.169.41.54
Josh, I assemble the side rails first and then put in the crankshaft holes with an end mill, first one side and then rolling the part 180 to do the other side. I know my prints call for .250" DIA, but I've actually gone to .375" DIA for more ease in assembly. The excess diameter doesn't really show.
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