1.grbl / grblAn open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on a straight ArduinoCOther license6.3K total3.2K forks+68 starsfrom 6,247 · score 4.23
2.arkypita / LaserGRBLLaser optimized GUI for GRBLgrblgcodeengraverlaserC#Other license1.7K total624 forks+49 starsfrom 1,621 · score 3.91
3.synthetos / g2g2core - The Next Generationcnccnc-controller3d-printinggcodelasercuttermotion-planning+1 moreC++Other license679 total299 forks+5 starsfrom 674 · score 1.79
4.openBrushograph / openBrushograph_hardwareA simple, open source and 3D-printable DIY x-y gantry and z-mechanism for making a brush painting robotOpenSCADOther license29 total1 forks+5 starsfrom 24 · score 1.79
5.arpruss / gcodeplotUse a 3-axis machine as a pen plotterPythonOther license201 total76 forks+3 starsfrom 198 · score 1.39