Makes sense to me, Ed. The only question I have is how tight is the tolerance? To me it looks like you cut off just below the red mark, then flatten the end a bit more. Will this ever cut it a hair short? Or is there some slack 'in the system'?
Dean,
Good question!! Because the top threads have lots of room (.3"+), this is not a critical cut. If you make it too long, it becomes impossible to make fine ground pepper. If you make it a little short, the top doesn't thread all the way down, which doesn't matter.
When I used to try to make the wood match the shaft length, sometimes you could just barely reach the threads and the mechanism was giving you fine ground--clearly not acceptable, since the grinding adjustment is one of the main advantages of this system over some of the "knobless" mechanisms.
Try this method a couple times, before you know it, you're "knocking out" a couple a night (well, if you have already drilled the suckers).
ALL questions invited!!:biggrin::biggrin: