We’re really impressed with the thought that went into this, and we’ll venture a guess that having something like this available is going to kickstart a lot of stalled CNC machine projects. The video below gives a quick tour of the controller. The best part is that the IO module spec is completely open, so designing custom modules should be a snap. There’s also room for five IO modules the current collection of modules includes a four-channel switch input, a relay output, an RS-485 module and a 0-10-V interface for talking to a variable frequency drive (VFD) spindle controllers, and buffered 5-V output module.
CNC USB CONTROLLER ARDUINO DRIVERS
There’s support for up to six channels of steppers, either directly on the board with Pololu-style modules or as external drivers using pluggable screw terminal blocks.
First, everything is modular - the main PCB is basically a motherboard with little more than a 5-volt power supply and some housekeeping electronics, plus a lot of headers. In fact, the current controller bears a strong family resemblance to his version 1.0 dev board, with a few conspicuous and intriguing additions. The idea behind ’s latest creation started with his port of GRBL to the ESP32. That’s where something like this modular CNC controller could really prove to be a game-changer. Metal or wood construction? Welded or bolted? Timing belts or lead screws? And even once the mechanical bits are sorted, you still face a universe of choices in terms of control electronics. If you’re building a CNC machine from scratch, the number of decisions you have to make is nearly boundless.
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