Category Archives: grbl

grbl shields

So, i have a single layer grbl shield and a dual layer grbl control shield for a leonardo on my desk. grbl shield: single top-layer (the silver one) i2c connector (bottom right) axis/stepper connectors (top right) limits connector (top center) depth sensor connector (top left) 3 switches for reset/start/stop status LED spindle control shield: dual… Read More »

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 »

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 »

enhancing grbl 0.9e

Currently i’m testing a modified version of grbl 0.9e dev. My modifications include: i2c control for spindle (coolant currently disabled) grbl status via blink code of arduino LED homing will set coord to 0,0,0 (and not -offset) tool table support for diameter and xyz-offsets softlimits respect tool z-offset for usable space Things seem to work… Read More »