3D printer improvements: Replacing LinuxCNC with a Smoothieboard for CNC milling. Not as easy as for 3D printing!
Connecting external stepper drivers to Smoothieboard
Smoothieboard V2 Prime (Pre-order) – RoboSprout
3d Printer Smoothieboard 5x 5xc V1.1 Arm Open Source Motherboard 32 Bit Lpc1769 Cortex-m3 Control Board Support Ethernet Forcnc - 3d Printer Parts & Accessories - AliExpress
main-power-input [smoothieware.org]
smoothieboard-v1-old [smoothieware.org]
Trouble Connecting to External Stepper Motor Driver - Smoothie - Maker Forums