Retrofit DMU 50V 5 axis milling center

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07 Jan 2022 23:24 - 07 Jan 2022 23:25 #231075 by Pro_El
Hello friends

My new project will be retrofit old DMU 50V milling center 
The machine is in good mechanical state, but one thing is confusing me
One of the five axis (B axis) is not rotating along center and the old numeric was using pivot to recalculate the space for the other axis
Can linuxcnc be configurated to use normal trivkins or should i use other kinematics. 
Some guide of this problem will be helpful
Thank you
Last edit: 07 Jan 2022 23:25 by Pro_El.

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08 Jan 2022 15:53 #231132 by Roiki
You need to look elsewhere if you actually want it to work as a 5 axis machine.

If 3 axis with positional is all you need, it can be made to work, though that type of table setup is not the easiest to set up and is not supported by default.
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08 Jan 2022 17:15 #231138 by Aciera
Maybe Section 5.3 here would be of interest to you (xyzbc-trt kinematics):
linuxcnc.org/docs/html/motion/5-axis-kinematics.html

Also look at the new switchable kinematics feature:
linuxcnc.org/docs/devel/html/motion/switchkins.html

While 5-axis TCP is certainly not a core application of linuxcnc there seem to be a number of users using it successfully to do just that. Beware however that you won't find many who can actually give first hand advise on how to set up and run such a setup.
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10 Jan 2022 23:58 #231372 by Pro_El
Thank a lot for you help.

my plan is for first i will setup 5 axis TCP machine and make PP for Fusion 360 with 45 degree from center for B axis and see how that will go.

Thanks

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11 Jan 2022 15:11 - 11 Jan 2022 15:11 #231452 by Aciera
Would be great if you could report on how you are getting on with things.
Last edit: 11 Jan 2022 15:11 by Aciera.
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23 Jan 2022 13:16 #232875 by Max Eley
Please show some progress, It would be so interesting! what control does it have originally? might be worth just checking it out, used to service my 70V, dont hesitate to ask me any questions about the machine.

I programmed my 70 eVo with iTNC530 on fusion 360, yours probably has the TNC 426?

Got a 80 eVo linear coming next month, no retrofit though : D

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