PCB designs for grbl

‘ve been working on PCB designs for my grbl setup: main controller spindle controller stepstick adapter for NEMA23 stepper I’ have them produced asap … Update: some grbl_mc PCBs should arrive end of next week. 2 of them might be available for sale (including the TBX…). please email if interested. an earlier version of the… Read More »

arduino _delay uses a timer!

Be sure to be aware of “hidden” dependencies on AVR hardware! The arduino GLCD lib (build 442) does use _delay( ms) (and therefore “timer0“) for it’s initial setup – and never after. If you’re trying to use timer0 for your own purposes – make sure you GLCD.Init(); first. After the display is set up, you… Read More »

spindle & cooling controller for grbl

So, spindle and cooling control with a lcd is coming up: connect to grbl via i2c 15-bits of rpm flood&mist cooling tool select (Tx) and tool change (M6) display a message (not yet integrated in grbl) It’s using a simple 1/2-byte protocol. UPDATE: Closed loop rpm control is working. Spindle is -off-. The servo pwm… Read More »