Mach 3 software (GCode Line limit)

VTransfer might be something to check out:

The most common Gcode senders used by people here on this forum is:

  • Easel (which can also import gcode from other design suites matched with the proper post processor, aka “translator” between design and machine)
  • Universal Gcode Sender, UGS for short (also require a matched post processor)