OpenBuilds CONTROL is a desktop Grbl host for operating CNC routers, laser cutters, plasma cutters, drag-knife machines and other equipment using compatible controllers.
The application brings together machine movement, G-code execution and common setup operations in a single interface. It is particularly well suited to OpenBuilds hardware but can also be used with other machines running compatible Grbl firmware.
This is free and open source software.
Key Features
- Connects to Grbl-based CNC machines and provides direct machine control.
- Jogging controls allow accurate manual positioning of individual axes.
- Loads and runs prepared G-code jobs.
- Provides controls for setting work-coordinate zero positions.
- Probing operations help establish tool and workpiece locations.
- Surfacing tools can generate the movements needed to flatten a spoilboard or stock.
- Calibration tools assist with tuning machine movement and dimensional accuracy.
- Machine profiles provide a starting configuration for supported equipment.
- Firmware settings can be viewed and adjusted through the interface.
- Supports firmware update workflows for compatible controller hardware.
- Interactive JavaScript macro buttons can automate common machine commands and sequences.
- Integrates with OpenBuilds CAM for moving designs from toolpath generation into machine control.
- Cross-platform support – runs on Linux, macOS and Windows.
Website: github.com/OpenBuilds/OpenBuilds-CONTROL
Support:
Developer: OpenBuilds
License: GNU General Public License v3.0

OpenBuilds CONTROL is written in JavaScript. Learn JavaScript with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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