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a.laasW8M6T
241 Views, 3 Replies

Machine simulation - Tool shown 90° to toolpath

So I have noticed this only with the Mazak post processor- on the I-600 from the machine library,

the toolpath will sometimes simulate with the tool 90° to what it should be, the stock is cut correctly, and the posted code appears to be correct but the tool axis is all wrong in the simulation.

toolpath.png

 

Two separate chamfer toolpaths here, using the same tool orientation settings.

see screen cast for the behaviour shown in Sim

 

Unfortunately I cannot share this example Publicly

 

https://autode.sk/3NzjJTa 

 

brekmiller
in reply to: a.laasW8M6T

This is a known bug (CAM-34965) with machine simulation.  If you have two 3+2 toolpaths in a row and both have the same orientation (rotary axis values), then the second 3+2 toolpath is incorrectly simulated with the rotary axes set to zero.

The bug is that machine simulation resets the rotary axes back to zero after every 3+2 toolpath if your post processor script calls cancelRotation().  Normally this is ok because for the next 3+2 toolpath, your script will call setRotation().  However, many post processor scripts don't call setRotation() if the rotary angles don't change between 3+2 toolpaths.

This bug was fixed back on April 5.  The fix should be available in the next release of Fusion.



Brek Miller

Software Engineer
a.laasW8M6T
in reply to: a.laasW8M6T

Awesome, I figured you guys would have it under control, but thought i would mention it anyway.

 

Cheers

brekmiller
in reply to: a.laasW8M6T

It's always worth it mentioning bugs you find.  Thanks.

This bug happens only when you have two 3+2 toolpaths in a row with the same orientation.  It was some time before anyone noticed that this wasn't working.



Brek Miller

Software Engineer