626 Mill Z Axis Feed Nut

[doubleboost]

(10-02-2012, 07:22 AM)stevec Wrote: John, I'd be curious to know, what's not "spot on" about it?

The depth of thread should be half the pitch plus 10 thou
125 / 2 +10
This gives 72.5 thou
I machined the core register 75 thou smaller than the thread od
Instead of 75 per side
(the thread is only half depth)
John