Main Board The Open-Source schematics and PCB layout can be found here on Github. Mike Rabin's Buildbotics Powered CNC Router How to use a VFD spindle driver Antones Brabants' Custom Buildbotics CNC Router Doug's DIY Buildbotics CNC Router Using an SN04-N Proximity Sensor as a Limit-Switch Randy Savell's 6040 Buildbotics CNC with Huanyang VFD Spindle Recommended Stepper Motors CNC Offsets (absolute position vs cutting position) Buildbotics Controller Reviews Retrofitting the Dyna Myte 2400 with a Buildbotics CNC Controller CNC Macro Buttons K40 LASER Cutter Matt Dralle's Buildbotics Jet Mill Retrofit Deep dive: Hacking the 8-bit AVR Creating a CNC Jogging App for an Android Phone Introduction to the Buildbotics CNC Controller API