TCP 5-axis kinematics

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8 years 3 weeks ago #118643 by jsskangas
Replied by jsskangas on topic TCP 5-axis kinematics
Ok, I found error.

Kinematics are ok and switching between kinematics works well.
X axis offset is not supported at the time.

Problem was lost encoder pulses.
Im running 8000 pulses per mm.
This was too much for hardware to handle.

I need to drop my encoder count for this hardware, sadly.
I would have liked to get everything out from machines accuracy.

Im running 6i25 and 7i77, currently Im not using filtering to get better encoder count rate.
I have 8000count per mm but now Im going to drop it down to 2000 per mm.

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8 years 2 weeks ago #118684 by andypugh
Replied by andypugh on topic TCP 5-axis kinematics
OK, I wasn't even considering hardware problems....

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8 years 2 weeks ago #118694 by jsskangas
Replied by jsskangas on topic TCP 5-axis kinematics
Same here, I had previously 5I20 and 2 analog servocards and 1 io card.
This setups did not had this lost pulses problem.

I still need to investigate more accurately what is going on.

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7 years 11 months ago #121480 by Stud54
Replied by Stud54 on topic TCP 5-axis kinematics
Any news here? :)

Sven

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7 years 11 months ago #121514 by jsskangas
Replied by jsskangas on topic TCP 5-axis kinematics
Hello

Well yes.
It's now working perfectly.

Error was lost encoder pulses.
I'm using 6I25-7I77 compo and it turned out that it's max count rate is ~550 KHz when filtering is on.

I was loosing encoder pulses on rapid moves.
I dropped my encoder count on all axis, this resolved my problem.
I still need to run impeller to test how this affected my surface quality.

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7 years 11 months ago #121525 by Stud54
Replied by Stud54 on topic TCP 5-axis kinematics
Nice....;)

How did you home the rotating Axes? Home on index with a separate Ini?

You are German, right?

Sven

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