Quote Originally Posted by Nr1madman View Post
Been playing some more :D

Look at this video, what might be causing this weird motion?
To fast motion for set kernel speed or just funky g code?
Have cut circles with constant speed so this was a first :)
https://m.youtube.com/watch?v=hlvP9uEJP8g

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The fact that it looks the same each rotation would suggest to me its the G-code itself, it could be made up of arcs not radii and the machine could be in exact-stop mode maybe?