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Milling multiple sides of a part (post processor puts out wrong coordinates)

winkler.michael
Explorer

Milling multiple sides of a part (post processor puts out wrong coordinates)

winkler.michael
Explorer
Explorer

Hello!

 

My setup:

I am using a 6-axis robot arm with a milling spindle mounted onto it. setup.jpg

 

My Problem:

I am trying to mill multiple sides of a part without any physical reorientation. Milling the first side is no problem, but when the robot has to rotate to the second side I could recognize that it moves to a wrong location. 

Rotation to second side.jpg

 

I have checked the post processor outputs. For me it looks like the post processor does not consider that there has been a reorientation. Therfore the outputs for the axis X,Y,Z seem to be wrong/swapped. 

 

First side:

First side.png

Second side:

second side.png

 

I have also tried to follow the instructions given at this link: https://knowledge.autodesk.com/de/support/fusion-360/learn-explore/caas/sfdcarticles/sfdcarticles/DE...

 but I think this is not what i need.

 

I have added the outputs of the post processor in the attachments.

I have also added my fusion 360 project.

 

I am using a post processor for kuka robots which i have modified a little bit, so it matches with my axis configuration. (also in the attachments)

 

 

Does anyone know why i have this problem or has anyone faced a similiar problem? I am happy for any advice you could give me.

 

 

Michael

 

 

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Replies (2)

Laurens-3DTechDraw
Mentor
Mentor

Have you added the tool length etc to the TCP in the robot controller or not?

Laurens Wijnschenk
3DTechDraw

AutoDesk CAM user & Post editor.
René for Legend.


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winkler.michael
Explorer
Explorer

Hello!

 

Thanks for the reply!

 


@Laurens-3DTechDraw wrote:

Have you added the tool length etc to the TCP in the robot controller or not?


 

Yes, I have set the tool length to the robot controller.

 

I have double checked the tool length with the common test. I have rotated the robot using the tool coordinate system. As you would expect the tip of the milling cutter keeps it's position pretty well.

 

 

Best Regards

Michael

 

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