Are the Zapp 3NM steppers good with their PM-752 drivers?

[irving2008]

Surely its the gibs that determine how tight the slide is? although I'll accept endfloat is another contender

[Jonathan]

Yes that's true, I'll check the gib strip. There's no end-float on the screw since there's thrust bearings, unless you're referring to something else?
The nut is slotted with a bolt to tighten the two parts enabling you to adjust the backlash. Quite recently I tightened it to reduce the backlash, but maybe I tightened it too much and increased the friction excessively.