All 4 x motors are 4.2A Nema 23 1.8deg Model Number 23HS2442B

X & Y Drive is Rack and Pinion Mod 1.0 with 20 tooth Pinion from here......... https://www.cnc4you.co.uk/Rack-and-Pinion (Datasheets available too)

Z Drive is using a 10x3 Trapezoidal Thread from here........... http://www.zappautomation.co.uk/mech...al-screws.html

My Stepper Drivers are ACT Motors DM542. I initially had my microstep settings to On-On-On-On which I believe is software controlled, speeds were rather tame, i tried an alternative setting of 2000 microsteps (On-Off-Off-On) and the machine is a lot faster and scared the life out of me when I first jogged it :)

I tried the Set Steps Per Unit for both of the above settings with different results. My frame is about 1mx1m I had the X axis set about 250mm from Zero. Using On-On-On-On Mach3 asked me how far I want to move so I entered 50 thinking 50mm but it moved over 500mm. Using On-Off-Off-On from a similar position but slightly further away from Zero than my previous attempt the X axis charged off and stopped at my limit switch - twitchy bum moment :)

I'll be honest I'm a little bit overloaded with information about the switch settings I should be using and not sure if I'm setting them correct - any advice on this would be appreciated too!

I hope this information is what you're looking for! Thanks for your time