Timber Framers Guild

Replacement Handles for Boring Machine

Posted By: lignarius

Replacement Handles for Boring Machine - 02/10/10 06:03 AM

Hey folks,

I was helping a guy take apart and clean his snell adjustable boring machine tonight in preparation for needed repairs. One thing we couldn't figure out is how the original hand knobs were attached. One is still present but needs repair the other is gone.

Best guess so far is that they were a press fit in green wood and shrunk over time.

Any ideas?
Posted By: TIMBEAL

Re: Replacement Handles for Boring Machine - 02/10/10 10:34 AM

There is a formed steal band inside the handle in the shape of a tear drop, this acts almost as a spring which springs over a bump on the crank lever where the handle fits. Something is worn or the spring is sprung. maybe some shiming in the handle is in order. The tear shapped spring thingy acts as the bearing surface within the handle which keeps the wood from wearing and has to be forced on and off the crank.

I am recalling this from a while back, I have a machine which looses the handle if the operator is to vigorious. My discription is how the handle on this machine looks and works, yours may be different.

I would say the handles were dry when fitted and they just dryed a little more in addition to the wear they recieve.

Tim
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