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Machine Setup

The Machine Setup tab defines the physical capabilities of your CNC machine, its firmware behavior, and how G-code should be generated. A properly configured machine profile ensures your output matches your hardware's constraints and expectations.

You can access it from the top-right menu:

Workspace Dimensions​

These values define your machine’s cutting envelope. Use your actual usable dimensions here, not the marketing ones.

  • X (width) — Maximum horizontal travel (left to right)
  • Y (depth) — Maximum front-to-back travel
  • Z (height) — Maximum vertical travel (top to bottom)

The units of these values are based on the units set in your global preferences (defaults to mm).

Firmware Settings​

  • Max Spindle — The highest RPM your spindle supports. This limits the feed speeds set in your CAM operations to generate proper and safe S values in G-code.

Output Options​

Customize how your G-code is formatted for your controller or post-processor:

  • Strip Comments — Removes all G-code comments for cleaner, smaller files
  • Token Spacer — Inserts a space between G-code tokens (e.g., G1 X1 Y1 vs G1X1Y1)
  • Enable Laser — Enables Laser operations (typically uses M3/M5; adjusts movement strategy)
  • File Extension — Optional override for exported file type (e.g., .nc, .ngc, .cnc, .cam, .gcode, .txt)

G-code Macros​

Macros insert custom G-code at key stages of toolpath generation. Each tab corresponds to a different context. In these boxes, you have access to G-code macros. Not all macros are available in all contexts, so be careful!

  • Header — Runs once at the beginning of the job (e.g., mode override, move to safe Z)
  • Footer — Runs at the end of the job (e.g., spindle stop, move to safe Z)
  • Tool — Called when changing tools. Automatic tool changes and tool measurement can be put here.
  • Dwell — Code for pausing movement/spindle at specified positions
  • Spindle — Code to set spindle RPM

RML Dialect​

Kiri:Moto supports the RML dialect of G-code.

When a machine's file extension is set to .rml, Kiri:Moto will use the RML dialect, using PU for non-cut moves and Z for cut moves. RML commands can be used in the Header, Footer, Tool, Dwell, and Spindle sections of the Machine Setup tab in the same way that G-code commands are used.

Contribute a Machine Profile​

We love to add new machines to the Kiri:Moto library. If you have a tested machine that you'd like to add, you can export your workspace as a .kmz file and share it on the Discord or forums.

If you want to submit a PR, you can find instructions for how to do so here.