Using the Super Gerbil

Super Gerbil has extra functionality compared to standard grbl

You can communicate with Super Gerbil via any G-code sender like UGS or CNCjs. Super Gerbil uses all the GRBL commands but has additional $ settings for features.

  • $7 = M6, toggle 0 or pulse 1 function
  • $8 = Tn pulse duration, milliseconds
  • $9 = M6 pulse duration, milliseconds
  • $19 = soft start for Spindle motors – value is in mS e.g. $19=20 is usually a good increment.
  • $28 = pwm frequency selection e.g. $28=4 (1kHz)
  • $33 = fault monitoring of the Spindle driver. Enable 1 or disable 0. If enabled and the spindle driver faults, then the system aborts the current CNC cycle
  • $100 up to $104 – step size for each axis (X,Y,Z,A,B)
  • $110 up to $114 – feed rate
  • $120 up to $124 – acceleration rate
CNCjs connection to Super Gerbil

What next ?

Once your setup is complete, undertake a number of basic projects to learn your machine and understand its limits.

We’ll be expanding this section in the near future with some example projects we’ve done.

Return to Super Gerbil Setup

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