I'm new to March3, have used GRBL shield on Arduino before on a home built CNC machine.

Now I'm trying to set up my machine using a USB March3 controller card under Windows 7.
My lead screw have 4 start, one revolution is 8mm, diameter is 8mm.
My motors are (23HS7628) Nema23, 19 kg-cm (267 oz-in), drivers DM542S (microsteps is set to 800)
Mainly Cutting birch plywood.

Anyone who could suggest motor tuning settings for my setup ?
I have calibrated my machine with 100 steps pr. mm for all the axis.

Use th same settings that you had in GRBL

Thanks, I will try that and see how it goes.