gSender is a feature-packed CNC interface application.
It’s designed to be clean and easy to learn while retaining a depth of capabilities for advanced users. It was created to bring new concepts to the existing landscape of grbl senders in an effort to advance functionality and ease-of-use.
This is free and open source software.
Features include:
- Accepts standard, grbl-compliant g-code and has been verified to work with many of the common CAM programs.
- Grbl and grblHAL controllers supported.
- Smart machine connection.
- 3-axis digital readout (DRO) with manual value entry.
- All-directional jogging with XY diagonals, jog presets, and incremental/continuous single-button handling.
- Zero-setting and gotos (independent and combined).
- Probing in any direction plus safe continuity detection ensures no broken cutting tools.
- Full imperial/metric compatibility.
- Responsive screen design and workspace customizations including visualizer light and dark theme.
- 3D toolpath visualization (no machine connection required).
- File insight on load (feed range, spindle range, tools used, estimated cutting time, and overall, max, and min dimensions).
- Feed override and active job status indicators.
- Fully exposed keyboard shortcuts for external keyboard/keypad control.
- Joystick support built-in for a variety of controllers.
- Safe height movements – accommodates machines with or without endstops.
- Homing cycle and quick-movement locations available for machines with homing hardware.
- Full spindle/laser support via manual control widgets, active alerting, and live overrides.
- Full mist/flood coolant support via manual control widgets and active alerting.
- Macros buttons (rearrangeable) with enhanced macro variables and individually assignable keyboard shortcuts.
- Lightweight mode reduces processing intensity on less powerful hardware or when running larger files.
- Easy workspace swapping for more advanced jigging or alignment work.
- Optional automatic handling for common error throwing g-code.
- Firmware tool for easier grbl EEPROM changes, loading defaults, and grbl flashing.
- Surfacing tool auto-generates surfacing g-code based on machine cutting area and other preferences, ready to execute.
- Calibration tool for axis alignment – a step by step process to make sure your CNC is square.
- Movement tuning tool for calibrating motor axis movements.
- Tool change functionality – pause, ignore, or run code blocks on M6 commands.
- Start-from-line functionality to resume jobs part-way through in case of failure of abort.
- Outline functionality indicates the rough bounds of the job before cutting.
- Customizable g-code injection at job start and end.
- Tooltips for data entry points.
- Alarm warning explanations to better contextualize CNC errors.
- Sleep management to keep PC awake during g-code sending.
- Pre-built machine profiles, including:
- LongMill
- Shapeoko
- X-carve
- OpenBuilds CNCs
- 3018 CNC & PROVer
- BobsCNC CNCs
- CNC4Newbie CNCs
- Mill Right CNCs
- Ooznest WorkBee
- Nomad
- Carvey
- Mill One, and more…
- JavaScript-based CNC interface software which leverages Electron for cross platform use. The software runs under Linux (both Intel and ARM architectures are supported), macOS, and Windows.
Website: sienci.com/gsender
Support: GitHub Code Repository
Developer: Sienci Labs Inc.
License: GNU General Public License v3.0
gSender is written in JavaScript. Learn JavaScript with our recommended free books and free tutorials.
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