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Endless C-Axis Swiveling

NOTW Programmer
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  • 1 month later...
Alex Dales Apprentice

Alex Dales

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Posted

Your C-axis value is calculated from your tool vector. If your tool is tilted off very slightly, the post calculates the C-axis value that allows for that tool vector. When tools are near vertical you can end up getting large c-axis movements.

If your machine has a vector mode and/or a smoothing mode you might be able to use that. Otherwise, you are relying on the physical rotary positions that are calculated. You could change what is being calculated by programming  in 3-axis mode, or by adding a side angle/led-lag angle the tilt the tool away from vertical and avoid the instability.

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