Are you using the onboard stepper motor drivers with the MKS Sbase v1.3 board running Smoothieware?
What size motors? How is that working for you?

I'm curious because I'm putting together an OX CNC system with 4 NEMA-23 motors. I'll certainly find out how that works but would like to know how that's working for others and what current settings you have for the Smoothieware config.

I don't have a SBase so I don't know how much current its drivers can output, but if it helps, I built a 700x1000mm OX CNC with Nema23 motors: 3x 23HS22-2804S (2.8A 178oz.in) 2 for the Y and 1 for the X, and a 23HS16-0884S (0.88A 85oz.in) on the Z axis. I run the X and Y motors at 1.7A and the Z motor at 0.77A on a Smoothieboard running on 24V. It works well for me, although I don't push it very hard and run it fairly conservatively which I'm happy enough with.

Edited 1 time(s). Last edit at 01/22/2019 09:58PM by sdavi.

Thanks, that is helpful. After posting this I notice there's also a smoothie forum here.
The MKS sbase is not really open hardware but seems to be copied from a number of different Chinese manufacturers. The genuine Smoothieboard seems to have a more robust driver design in the electronics.
I built a 1000x1500mm OX CNC and using the same motors (NEMA23 178oz/in) on all. I'm also running at 24V. We'll see how that goes. Your current settings sound reasonable and I think I should be able to go with 1.7A all around.