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Work Coordinates limitation - Haas UMC

Message 1 of 8
241 Views, 7 Replies

Work Coordinates limitation - Haas UMC

I have a part that on the second operation i wanted to tilt my B axis 90 degrees and pickup X and Y from a bore on the side, as well as the surface for the Z.  The problem is that if I do that and make that my WCS for the second operation, when I use tool orientation to rough from the top (so -90 from my WCS) the post processor thinks the way to do that is -180 C and 90 B which of course throws an error (this is on a Haas UMC with -35 to 120 on the B)... I believe that the post processor is always thinking you are starting from a machine WCS of 0 in your B and then applies those limits...  How do I get around that ?


I just created an example in a file to illustrate.

Message 2 of 8

Hi @azjulian72,

Fusion takes the setup orientation as 0. So and movements come from there. We actually have no idea where machine 0 is. 

Can you attach your project and I might be able to point you in the right direction. 

Richard Stubley
Manager - Manufacturing Specialist Team
Message 3 of 8

Hi Richard - I just edited my message and added an example file that I created.  I can't post the file on the forum, but I can send to you directly

Message 4 of 8

Hi @azjulian72,

Probably best to look at your actual part.


Richard Stubley
Manager - Manufacturing Specialist Team
Message 5 of 8

great sent you a pm

Message 6 of 8
in reply to: azjulian72

Did you come up with a solution to this issue? We are having the same problem with wanting to have the coordinate system zero set with the B rotated to 90.


On simple parts we have just posted out as using an A axis and then changed the As to Cs but anything that is done at a different angle doesn't work.

Message 7 of 8

Hi @kecksmachine,

I don't think there was anything done off the back of this, but with the way the Machine definition has improved in Fusion recently, my suggestion now would be to make a new machine in your library with the limits set to the actual capabilities when your B0 is now at B90.

Richard Stubley
Manager - Manufacturing Specialist Team
Message 8 of 8
in reply to: azjulian72

This won't work with DWO if that's what you are trying. You have to create the setup in Fusion with the Z oriented correctly on the part and set a work offset value in the control for B to 90. Maybe also the C to suit what you need. Position the machine there and probe/pickup your X/Y/Z offsets.

Please click "Accept Solution" if I helped with your question or issue.

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