Thread: pic: Team 3647 West Coast Drive
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Unread 19-12-2011, 14:30
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Re: pic: Team 3647 West Coast Drive
Quote:
Originally Posted by JesseK View Post
McMaster # 9056K11 (or similar from a less expensive supplier) might be a good start for Richard's design.

Without a DRO, how would one check the bored diameter? Is the only way to start/stop the lathe constantly?
Even with a DRO one would stop the late occasionally, i.e. after several passes, to check the ID of the part. Without a DRO one does the same procedure. The drive handles on the lathe will have a scale on them, something like 0.100" per revolution, typically with 0.001" accuracy. The operator would then count.

I like to take a 'skin' cut, measure the ID I just machined, subtract from the ID want to reach, and count turns/notches on the drive handles.

Edit: Chris' suggestion is also a good one. Assuming you're going to make many holes that size it is definitely worth investing in a reamer.
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Last edited by JamesCH95 : 19-12-2011 at 15:03.
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