Half Nut Adjustments?

[Wongster]

(04-22-2012, 10:26 AM)DaveH Wrote: Wong,
Here's my best guess the half nuts may just slide out.
The 4 pins are for location, Proxxon went to a lot of trouble to locate it correctly. So caution is a wise option at the moment.

I should leave the 1/2 nut alone then. Not worth the risk.

(04-22-2012, 10:26 AM)DaveH Wrote: Test for the half nut engagement at the headstock, the middle (1/2 way between headstock and tailstock) and at the tailstock. See if you get the same amount of movement of the lead screw at each position.

The feel when engaging the half nut at the tailstock is like I'm locking up the lead screw. At the middle, the lead screw shifted up. I'll take a look at it at the headstock.

(04-22-2012, 10:50 AM)DaveH Wrote: Wong, I think you're right it is a pain, once the half nuts are engaged you should not turn the hand wheel, you will break some thing

Dave

Dave, I need to engage the half nut to turn the lead screw handwheel and not the handwheel at the apron.