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Wohlhaupter locking screw fix.

Terry Keeley

Titanium
Joined
Oct 18, 2005
Location
Toronto, Canada eh!
Was missing some locking screw parts on my UPA2, had no idea how it worked but found these:


Zerlegen und Montieren eines Wohlhaupter UPA3 - YouTube

Looking for help repairing a Wohlhaupter UPA 3 boring head

Pg.3 here shows it well:

https://redirect.viglink.com/?forma...ges.storage.googleapis.com/pdfs/US3371559.pdf


Turns out I was missing the plunger and the stop pin so I just made them.

I cut the plunger from an 0.083" gauge pin (about 5/16" long) and made the stop from some 1/8" O-1 (0.050" pin 0.170" long).

This sketch from one of the posts shows how it works, it's meant to stop the screw from backing out and flinging the little ball across the shop.


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