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

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1 year 1 month ago - 1 year 1 month ago #334249 by jschulze
Just wanted to say thanks for all the work on this.  I just got it working on my machine.  I don't have a nutating head, but settings the angle to 90 worked perfectly.  Also, since I have 2 c axis I edited the kinematics to pass through an additional W axis for the rotating table.    



Last edit: 1 year 1 month ago by jschulze.
The following user(s) said Thank You: besriworld, jpg, Daan96

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1 year 1 month ago #334253 by Aciera
Nice, thanks for reporting back.

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1 year 1 month ago #334606 by jschulze
Sorry, for all the questions, but I'm having a bit of trouble with TWP and was hoping I could get some help. TCP is working totally fine and it seems like TWP is partially working, but not quite correctly. Say I issue G68.2 X0Y0Z0 I0J-45K0 and G53.1, the spindle orients itself correctly and I can jog in X and Y, but not Z. Depending on the angles I use I get different axes I can jog. Using G68.3 I can see the plane set in the vismach, but I'm not able to jog at all.

I did mess with the kinematics file to make it work for my machine. TCP works great, so it seems to be working (I added a tandem Y axis and a W axis that isn't involved in the tcp math). Is there anything I could have messed up in the kinematics file? Also, I had to scale some things in the vismach since I'm working in inches. Is there anything in the twp remap files that I would need to scale? Thanks again for all the help.

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1 year 1 month ago #334611 by Aciera
Can you post your modified kinemaitics file and your ini file?

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1 year 1 month ago #334668 by jschulze

Can you post your modified kinemaitics file and your ini file?
 
Here's all my files.  I've included .ini, .hal, and kinematics comp file.  
Attachments:

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1 year 1 month ago #334676 by Aciera
I've replaced the standard kinematic file with your modified version, added extra joints and changed the config to inches to test in the simulation but I cannot reproduce your jogging issue in TWP mode.
I'm afraid I'm a bit at a loss as to how to troubleshoot this further.

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