Your controller should report 'Grbl 1.1g '$' for help'. The setting we just made in config.h ensures that the output SpRel of the control card is switched when an M3 command is given. Depending on what you use or if you use limit switches there are further settings in the config.h to make. This version of Grbl runs on an Arduino with a 328p processor (Uno, Duemilanove, Nano, Micro, etc). The controller is written in highly optimized C utilizing every clever feature of the AVR-chips to achieve precise timing and asynchronous operation. It is able to maintain up to 30kHz of stable, jitter free control pulses.
LaserGRBL is one of the best Windows GCode streamer for DIY Laser Engraver. LaserGRBL is able to load and stream GCode path to arduino, as well engrave images, pictures and logo with internal conversion tool.
Grbl 1.1g
Unlike other GUI, LaserGRBL it is specifically developed for use with hobbist laser cutter and engraver. In order to use all the features your engraver must supports power modulation through S command.
With image engraving (raster to gcode convertion) LaserGRBL could be a good free and easy alternative to picengrave, benbox, T2laser for who don’t need more then a simple and effective tool.
Grbl 1.1e
I have written it to use with my own engraver, and I like to share it with everyone who needs. LaserGRBL is compatible with Grbl v0.9 and Grbl v1.1