Will BeamBench run your laser?

Check the control board or firmware and the connection it uses. A CO2 laser may use GRBL, Ruida, Lihuiyu, or another controller. Signs that identify the right BeamBench choice include:

• The manual or product page names GRBL, FluidNC, grblHAL, Marlin, Snapmaker, Smoothieware, Ruida, or Lihuiyu.
• The controller screen, board label, or firmware identity matches one of the exact choices below.
• The machine connects by USB serial, Ethernet or network, or a supported CH341 USB controller.

Do not choose by machine brand alone. Use Auto-detect or select the controller that is actually installed.

GRBL is Supported. The remaining rows are labeled Experimental directly in BeamBench:

• Supported: GRBL over USB serial.
• Experimental G-code: FluidNC and grblHAL over serial or TCP; Generic GRBL-compatible, standard Marlin, Snapmaker 2.0, and Smoothieware over serial.
• Experimental native protocols: Ruida RDC6442S over Ethernet/UDP and stock Lihuiyu M2/M3 Nano controllers over USB.

Choose the exact controller and connection used by your machine. If connection or job behavior does not match your machine, report it through Help > Report a Bug.

• Machines locked to proprietary, cloud-tied software (for example, Glowforge).
• Trocen, TopWisdom, and galvo controllers such as EZCAD, JCZ, or BSL.
• Other Ruida models, Ruida USB, and unverified Lihuiyu variants are not silently treated as compatible.

BeamBench also has a CNC toggle for driving a non-laser GRBL machine with the same plumbing. It is a bonus if you have one, not a primary use case. Details in the supported machines FAQ.

The definitive answer costs nothing: BeamBench is free, with no signup. Download it, open Device Settings > Connection, choose Serial, Network, or USB, then use Auto-detect or select the installed controller. If it fails, use Help > Report a Bug so the beta report includes the available controller and connection details.

Download BeamBench · Connection guide

Once your machine connects (or refuses to), report the machine, controller, firmware, connection type, and what happened in the Beam Bench Facebook group or through the in-app bug reporter. Community-confirmed rows will make the compatibility guidance more exact for the next maker.