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Unread 19-11-2016, 21:22
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Re: Custom Gearbox Without Automated Machining?

Quote:
Originally Posted by Jared View Post
It's possible if you know what you're doing with the Bridgeport and pay attention to backlash.

To make the bearing bore, I'd probably use a boring head. If you don't have one and don't want to buy one, you can also buy a 1" drill bit ($10 for the cheapest reasonable one) and a 1.125" ream ($50)..
This is way too aggressive. You're not going to get good results with 1/16 stock removal per side.

Your pre drill should be 2-3% smaller than your finished hole. 1-1/16" in this case.
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