I use LaserGRBL for control when using a laser attatched to my CNC.
For CNC machining (spindle work) I use Candle or gSender to control my CNC.
You will need to use CAD/CAM software to import or create designs, select tools, create toolpaths and save g-code files when CNC machining.
candle or ugs are more suited to cnc functionality for grbl controlled cnc machines.
I use LaserGRBL for control when using a laser attatched to my CNC. For CNC machining (spindle work) I use Candle or gSender to control my CNC. You will need to use CAD/CAM software to import or create designs, select tools, create toolpaths and save g-code files when CNC machining.