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An Educated Nut for Warco WM40 (with a Bridgeport type quill)

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awemawson:
Looks very good  :thumbup:

Spurry:
Thanks Andrew.
Having fitted the new Z scale, the downfeed wheel did not now fit, interfering with the read head and scale itself (pic 1). I drew up a spacer but the reversing mechanism was a little short to operate. :bang: I struck lucky on ebay and found a wheel with a slightly smaller outside diameter, correct backset, and a boss big enough to drill for the drive pin.

Next job was to replicate the three-armed vice handle for quill downfeed. The single arm always seemed to be in the wrong position to actually use it. The new hub has three drive pins instead of the standard single in the rear face. A fixture was made to enable drilling/tapping for the arms of the hub to be at correct angle and spacing. I have made the arms 200mm, the original one being 165mm, so can be shortened if necessary.
Pete

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