Teensy based CNC board

Another similar multiple board solution: forum.linuxcnc.org/18-computer/44828-rem...ernet-nvem-cnc-board

I still lean towards a single board computer solution where all you need is some IO protection and level shifting.

forum.linuxcnc.org/18-computer/46077-pot...ngle-board-computers

forum.linuxcnc.org/18-computer/39037-lin...-orange-pi-allwincnc