All are clearly labeled on the various photos available. I only use the z endstop for zeroing purposes, and an “always on” fan connector. The stepping motors are attached to the X, Y and Z connectors. I use the DRV8825 drivers for all 3 directions. I’ve been using the MKS Gen L board for about 6 months, and it works with no problems. I don’t know if it’s an error on the MKS board or on the 64128 display.Īre you interested in any specific aspect of the wiring? And as others have noted, you have to flip the plastic housing on the display connector of the display. There are some extra I/O available on the board. The FET is rated at 30amps, but with cooling of course! I haven’t built an MPCNC yet (soon!) but I think the Gen L V1 should work just fine. I simply positioned a small fan directly over the FET and it never exceeds 120F even though it supplies 19 amps when the bed is on. Also, the heat bed FET is hooked directly to my heat bed without an external FET. They easily deliver 2 amps to the z stepper and the chip runs only slightly warm.

For the z-axis I used two steppers with an adapter board I got from Zyltech that let’s you plug 2 steppers in parallel. I did not need to install any drivers, Win10 recognized it as a serial port, which runs at 250K baud. I programmed it via Arduino on my PC (Win10). I built a 3d printer using the MKS Gen L V1 board.

Ramps 1.4 usb 2.0 serial driver