Does anyone have a GRBL config and setup for a K40 laser?

Does anyone have a GRBL config and setup for a K40 laser?

The setup is pretty much the same as Smoothie . . . but honestly you’ll end up with a Smoothie anyway.

The only thing that was really differnet is that you need a level shifter on the PWM modulation line for the Smoothie - but the GRBL runs at 5V so it’s not needed.

Which shield are you using? I used the Protoneer CNC board and it worked great. Smoothie has 100x better rastering though. The GRBL setup is back on my MPCNC setup and it’s awesome there with Chilipeppr.

Here’s the last GRBL config that I used for LaserWeb:

: Grbl 0.9j [’$’ for help]

: $0=10 (step pulse, usec)

: $1=255 (step idle delay, msec)

: $2=0 (step port invert mask:00000000)

: $3=0 (dir port invert mask:00000000)

: $4=0 (step enable invert, bool)

: $5=0 (limit pins invert, bool)

: $6=0 (probe pin invert, bool)

: $10=3 (status report mask:00000011)

: $11=0.010 (junction deviation, mm)

: $12=0.002 (arc tolerance, mm)

: $13=0 (report inches, bool)

: $20=0 (soft limits, bool)

: $21=1 (hard limits, bool)

: $22=1 (homing cycle, bool)

: $23=3 (homing dir invert mask:00000011)

: $24=100.000 (homing feed, mm/min)

: $25=1000.000 (homing seek, mm/min)

: $26=250 (homing debounce, msec)

: $27=5.000 (homing pull-off, mm)

: $100=40.000 (x, step/mm)

: $101=40.000 (y, step/mm)

: $102=4535.000 (z, step/mm)

: $110=8000.000 (x max rate, mm/min)

: $111=8000.000 (y max rate, mm/min)

: $112=500.000 (z max rate, mm/min)

: $120=8000.000 (x accel, mm/sec^2)

: $121=8000.000 (y accel, mm/sec^2)

: $122=10.000 (z accel, mm/sec^2)

: $130=305.000 (x max travel, mm)

: $131=300.000 (y max travel, mm)

: $132=200.000 (z max travel, mm)

: ok

Thank you @Rich_Barlow