To ensure Candle was installed correctly:
: Candle 1.1.7 is designed for GRBL v1.1 . If your machine uses GRBL v0.9, the jog buttons may not function correctly; for those older machines, version 1.0 is often recommended. candle 1.1.7 download
export CANDLE_CUDA=1
Requires a CPU with SSE2 support and a graphics card compatible with OpenGL 2.0. Installation & Setup Guide To ensure Candle was installed correctly: : Candle 1