API Documentation Read the Buildbotics Controller's API documentation on GitHub. Cutting on a Rotary Axis Homing your CNC Machine Doug's DIY Buildbotics CNC Router Integrating the PwnCNC Automatic Tool Changer with the Buildbotics Controller You can build a CNC but can you explain it? Buildbotics Controller Reviews The 6040 CNC Router Deep dive: Hacking the 8-bit AVR Mike Rabin's Buildbotics Powered CNC Router Randy Savell's 6040 Buildbotics CNC with Huanyang VFD Spindle Rock-solid, Open-Source CNC Controller How to use a VFD spindle driver How to Wire Stepper Motors Using an SN04-N Proximity Sensor as a Limit-Switch Buildbotics I/O Breakout Connecting a Huanyang VFD