Kinematic model for a 5axis mill with universal (nutating) head

Aciera
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18 Sep 2026 08:49 #349704 by Aciera

Replied by Aciera on topic Kinematic model for a 5axis mill with universal (nutating) head

I'm afraid I don't have a ready made kinematic for a machine with 2 work side rotaries and one spindle rotary.

Do you have a picture of the machine geometry? I'm having trouble picturing a spindle with a C rotation only. C would rotate around the Z axis and usually the spindle itself is aligned with the Z axis.

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metalkesh
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18 Sep 2026 11:07 #349705 by metalkesh

Replied by metalkesh on topic Kinematic model for a 5axis mill with universal (nutating) head

Hi,

i attached representive photo of the machine.

C axis is for rotation of the welding torch and this torch has offset between torch tip and rotation center of the C axis This ofsett can modified by operator according to welding jig.

A and B axis are for rotation of the object that operator needs to weld.

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Aciera
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18 Sep 2026 11:23 #349706 by Aciera

Replied by Aciera on topic Kinematic model for a 5axis mill with universal (nutating) head

I see. Yes, that would require a new kinematic model. Basically the 'xyzab-tdr' expanded with the tool side c rotation and the torch tip offset.

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tuxcnc
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18 Sep 2026 11:24 #349707 by tuxcnc

Replied by tuxcnc on topic Kinematic model for a 5axis mill with universal (nutating) head

metalkesh wrote:
C axis is for rotation of the welding torch and this torch has offset between torch tip and rotation center of the C

This is not the C-axis.

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Kinematic model for a 5axis mill with universal (nutating) head

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