Re: [CAD_CAM_EDM_DRO] 15/16-16 bore size

Using my spreadsheet, for a 50% thread the hole size is .8969"
for 75%, .8766"

and yes, that is what I used to bore the holes for my conversion.


At 04:18 PM 3/2/2009, you wrote:

>I'm designing parts for my cnc router to accept Thompson ball nuts with
>a 15/16-16 thread. It was obvious to use a 13/16 bore but upon
>checking my tap won't start in that size hole. Boring to .862 appears
>to allow the tap to start but I am wondering if there is a standard tap
>hole size for 15/16-16??? Has anyone else tapped holes for ball nuts?
>Thoughts????
>
>Thanks,
>
>Jack
>
>
>
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