In adding an alternative cutter drive motor (‘spindle’) to an existing cnc machine, an electrically isolated pwm to analogue converter is needed. The machine uses a ‘grbl’ controller, which has an ...

Servo details The main idea is to use the PWM signal normally used for spindle control in grbl to send a PWM signal to the servo for up/down motion. NB: the added servo functionality will only operate ...

This is the development branch for Grbl v1.1's upcoming release. Please keep in mind, the new features here are beta, so use with caution. If you'd like to help, please report any bugs or oddities ...

Some people have all the luck. [MakerMan] writes in to gloat tell us about a recent trip to the junkyard where he scored a rather serious looking laser cutter. This is no desktop-sized K40 we’re ...