@discoverycharles Grbl is a gcode interpreter. Duet has that integrated in. You send your gcode program to the Duet and control the machine directly from the Duet Web Control UI. Its not quite as refined as Chilipeppr, etc but its all in one package. If you check out Workbee CNC, it runs the Duet and can give you an idea of what to expect. One of the features I've come to appreciate is the ability to almost instantaneously tweak the FW. No compiling/uploading. As with anything new theres gonna be a learning curve, though