theres no reversing contactor in mine. just forward run
the spindle doesnt have to run accurately- just at rough speed required as the z axis will be geared to its encoder (which il have to add) - so will only start back out movement when the spindle is in reverse in a tapping cycle .
i havnt had time to test the lynx drive fully yet- but its ready light is on !
it does look a tight for space fit- was thinking mounting the motor high with a long shaft where the original motor is now if i have to use an ac servo instead.
time for some testing.