Turning

Subject:
Starting a Forstner bit. *PIC*
Response To:
Re: Air Drying Cherry ()

John K Jordan
>>>Drill about 3/8" deep with the forstner bit. That will leave a stub wall (inside the cavity). Hog out other material, let dry, etc. The sides of that hole will provide registration for the forstner bit.

What if the piece warps significantly when drying so the Forstner bit no longer fits in the registration hole?

I ask since I've had small roughed dogwood box blanks warp so much during drying that even holding them was a challenge. This rough-turned 2.5" dogwood blank, not even excessively wet to start with, was this much out of round after drying. And this is an end-grain box blank, cut well to one side of the pith.

Holly and persimmon are some other woods I've had warp like crazy but not as bad as dogwood. How bad can the starter hole be before a Forstner bit has a problem?

JKJ

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