Checking the fit with the middle section

Published May 21, 2019, 11:06 a.m.

<p>I can shave off progressively more material with each pass of the rountine. So here I'm just checking that the top section fits into the middle section. Sometimes I stop a routine before it's finished all the passes (that I've calculated it ought to have) because enough material has been cut off and continuing with another pass would make the fit too loose.</p>