On Tue, Sep 10, 2024 at 10:27 PM, Keith S. Angus wrote:
https://www.doublemountainview.us/shopwork/unimat/eccentric/20240910_170819.jpg
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Presumably this is a tommy bar hole (so 4 mm diameter) to help in getting it off.
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Also note that the 12 mm thread is actually M12 ¡Á 1, although you may be already tooled up for that. Since the hole does not have the clearance for the plain 12 mm portion of the spindle you may have to watch the depth of the threaded hole to control the position of the eccentric. Or you could add washers or other packing to make sure it lines up with the connecting link. Just something to keep an eye on.
Yes, it appears that the hole is for a tommy bar so that the eccentric can be tightened on the spindle.
I didn't call out the spindle thread as I assumed most would know that.
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Jim Korman
Jim Korman