@fcwilt 8mm/rev 1000mm
That was actually filmed with the old hundred to one gear boxes which was us ordering without looking at the selected option box....doh'
What drove us insane was trying to get the ft6 to work.... with a bad board and bad bearings and other various defects. It's what led me to design my own.... I'm pretty sure it's a fairly common story among us lunatics
Just FYI if you use lead screws with 2mm lead you might not need such high ratio geared steppers.
Before I switched to belts I used lead screws and found that 2mm lead was good at holding position when power was off.
Frederick