Randy Savell's 6040 Buildbotics CNC with Huanyang VFD Spindle Buildbotics I/O Breakout CNC Macro Buttons Main Board Doug's DIY Buildbotics CNC Router Retrofitting the Dyna Myte 2400 with a Buildbotics CNC Controller Dyna Myte 2400 CNC Mill Buildbotics Retrofit Probing to set CNC offsets Turning 2D DXF files into GCode Using an SN04-N Proximity Sensor as a Limit-Switch Connecting a PWM Spindle CNC Offsets (absolute position vs cutting position) Deep dive: Hacking the 8-bit AVR How to Wire Stepper Motors Rock-solid, Open-Source CNC Controller How to Create a CNC Simulator Connecting a Huanyang VFD