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- Tue Oct 03, 2017 8:56 am
- Forum: Old CNC Shield V3.00 and Chines copies of it...
- Topic: Limit switches board V3 GRBL V1.1
- Replies: 3
- Views: 7251
I know it's an older question and i think you have figured it out by now. But still: Shield v3.0 and GRBL 1.1 - Z- (Z minus) is actualy Spindle PWM/EN. It is on Arduino D11 pin. PWM enabled with $32=1. I'm using it for laser PWM. https://github.com/gnea/grbl/wiki/Grbl-v1.1-Laser-Mode There, thats it.