ESAB Ultrarex UXD-P 2500 retrofit with Linuxcnc and Proma THC

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17 Feb 2020 07:33 #157566 by alexandrub
Any ideea about this motor ? Do you thing it has clutch? I suppose upper part is encoder, moddle part is the motor but the lower part?

The gearbox is under all and is big.

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17 Feb 2020 11:12 #157580 by tommylight
There should be no clutch, mine did not have.
They tend to have brakes, not clutches, so give it a push, if it moves it does not have a brake.
The part between the encoder and motor is the tacho generator, it sends feedback to the drive to close the velocity loop. The encoder goes to the controller to close the position loop.

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17 Feb 2020 11:47 #157587 by alex.statie
Thank you for the clarification!

What got us worried was the part highlighted in yellow from the manual.

It seems to have no effect if connected or not...
Attachments:

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22 Feb 2020 20:56 #158235 by alexandrub
Can you explain please how did you define the y axis for example ? How you define the rack and pinion raport, the gearbox and encoder?how did you treat ? Thank you.

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22 Feb 2020 21:11 #158239 by tommylight
hmmm ... measuring tape !
Open the calibration menu in Linuxcnc "machine" menu, and test using MDI, measure, correct the SCALE and measure again and again.

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26 Feb 2020 08:43 #158517 by alexandrub
Do you mount home switch for z axis? I don't know if i need or not...in my opinion i need...

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26 Feb 2020 09:04 #158521 by tommylight
If you want to use PlasmaC config, you need that.
Not needed for thc_toma config.

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26 Feb 2020 10:00 #158522 by alexandrub
Can you tell me please wich are the difference between toma_thc and plasmac config? Which are the best?

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26 Feb 2020 10:24 #158523 by rodw

alexandrub wrote: Can you tell me please wich are the difference between toma_thc and plasmac config? Which are the best?


Plasmac is part of the official Linuxcnc version 2.8 and 2.9 and toma_thc isn't. Plasmac supports THC's like the Proma. So I think that really answers your question.

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26 Feb 2020 10:33 #158524 by alexandrub

rodw wrote:
Plasmac is part of the official Linuxcnc version 2.8 and 2.9 and toma_thc isn't. Plasmac supports THC's like the Proma. So I think that really answers your question.


Ok, but wich are the functional difference. I think tommylight use the proma thc. In this case toma_thc is compatible with proma thc. I will use a mesa thc i i want to know which is te best choice for me.

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