• Quick-Links:
  • Getting Started
  • Grbl Settings
  • $$ - View Grbl settings
  • $x=val - Save Grbl setting
  • Grbl's $x=val settings and what they mean
  • $0 – Step pulse, microseconds
  • $1 - Step idle delay, milliseconds
  • $2 – Step port invert, mask
  • $3 – Direction port invert, mask
  • $4 - Step enable invert, boolean
  • $5 - Limit pins invert, boolean
  • $6 - Probe pin invert, boolean
  • $10 - Status report, mask
  • $11 - Junction deviation, mm
  • $12 – Arc tolerance, mm
  • $13 - Report inches, boolean
  • $20 - Soft limits, boolean
  • $21 - Hard limits, boolean
  • $22 - Homing cycle, boolean
  • $23 - Homing dir invert, mask
  • $24 - Homing feed, mm/min
  • $25 - Homing seek, mm/min
  • $26 - Homing debounce, milliseconds
  • $27 - Homing pull-off, mm
  • $30 - Max spindle speed, RPM
  • $31 - Min spindle speed, RPM
  • $32 - Laser mode, boolean
  • $100, $101 and $102 – [X,Y,Z] steps/mm
  • $110, $111 and $112 – [X,Y,Z] Max rate, mm/min
  • $120, $121, $122 – [X,Y,Z] Acceleration, mm/sec^2
  • $130, $131, $132 – [X,Y,Z] Max travel, mm
  • Quick Guide to Setting Up Your Machine for the First Time