I thought the r7 spindle could be controlled by tinyG?

General CNC CNC Routers
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21

It should not be CNC.js, and believe several are running that sender. It will only send what it is instructed though.

22

@Colin_Kaminski what the heck is a gcode header and where do I find it?

23

The first few lines of the file you send to the TinyG.