10-27-2017, 08:38 AM
(10-19-2017, 07:57 AM)pepi Wrote: I ran into a problem, and it could be me not sure yet. Will figure it out after I finish this project.
Primary investigation; the milled blank mounted in the vise. Will not tamp down on the rear parallel bar, slides in and out, no up & down movement.
Messing around using a 123 block found it did the same. I reversed the front and back removal jaw faces.
That allowed the 123 block to be set as expected, did not help the milled piece, not surprise regarding that.
Greg
I run into that from time to time if I get in too much of a hurry and tamp down on the part a little too hard. It bounces back off of the parallel(s) just enough to let them slide under the part. Light taps work better for me. Possibly a difference in the materials between your blank and your 1-2-3 block causing a difference in rebound?
Did you deburr the edges of your blank after milling? I've been caught up by a sharp edge of a part hitting an inside corner of the vice in the past as well. Again my fault, for being in a hurry and deburring 11 edges of a block instead of all 12.
Willie