I have just received my workbee mechanical kit. I have a set of wantai DQ542MA drivers and 1.9N-m motors, running from an arduino uno. I didn't want to use the Xpro, as I'd prefer a more modular approach with separate controller and drivers. However this has cost me the convenience and documentation of the full kit - so I have lots of working out how to put it all together. This thread is where I will ask lots of stupid questions and report my progress. referring to this video: https://openbuilds.com/threads/uno-grbl-dq542ma-wiring-methods.8785/ I have understood how to connect the arduino to the drivers and motors, and have made a motor move from universal gcode sender. my first questions are: should the negative of the power supply be earthed/grounded? or just left floating? what stepper microstep settings are appropriate for a screw driven workbee? The DQ542MA has 4 dipswitches that set this, but I'm really not sure what a good starting point would be. How do pulses per revolution relate to expressing microsteps as a fraction?