Announcements
Attention for Customers without Multi-Factor Authentication or Single Sign-On - OTP Verification rolls out April 2025. Read all about it here.
winkler.michael
517 Views, 2 Replies

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

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

 

 

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.


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