Mr. Gusset is a free, browser-based conversational G-code generator for plasma cutting square and round tube profiles. Enter your tube dimensions — side lengths, corner radius, or tube OD — along with feedrate and pierce delay, then add cut operations like slots, holes, notches, and cope cuts to generate ready-to-run G-code. No CAD software required.
Choose your tube shape to initialize your workspace profile:
Load, rename, or export programs saved locally in your browser storage.
Custom conversational plasma tube cutter for precise structural fabrication.
| Axes Layout | X (Linear Torch Travel) • Y (Rotary Tube Chuck) • Z (Torch Lifter) |
| Chuck Capacity | Square Tubing up to 2.5" • Round Tubing up to 3.0" OD |
| Relay Control | M42 P4 S1 (Torch Fire On) • M42 P4 S0 (Torch Fire Off) |
| Unit Standard | G20 (Inch Mode) • G21 (Metric Mode) |
The generated G-code relies on these controller-specific hooks to adapt torch travel coordinates automatically to your loaded tube size:
Starting a new project will discard your active cutlist. Would you like to save your current work to the local library before continuing?
Choose a name for your active program before starting a new one.
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Physical distance from probe tip to torch tip. After probing, the machine shifts coordinates by these offsets so the torch is zeroed at the probed surface. Enter the torch position relative to the probe.
Configure how many motor microsteps correspond to one linear unit (mm) or rotary degree.
Do not close this window or navigate away while the machine is running.
To connect to your physical machine, the browser requires a local HTTP context to bypass security restrictions. Please ensure run_server.bat is active on your computer, then click below to launch the local application.