gantry setup: X homing fine; Y-Y2 and Z not moving

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20 Feb 2021 11:22 #199513 by sibelius
Good evening

I manage to wire all my machine and linuxcnc does not give any error.
At this point I started to home X and everything went well; than after that I have tried to home the Y and Y2 (synchronized) and I can see from the HAL SHOW that they copy moving but physically the two motors don't make any movement.

When I power on the machine all the motor are engaged (I mean you cannot freely turning the shaft).
I m going to post my ini and hal file.
If anyone has some idea would be great.

Thanks in advance
V.
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20 Feb 2021 12:13 #199519 by chris@cnc
If your stepper does not turn, but Halshow does something, it could be that your cables are incorrect or the configuration of the stepper time in ini file.
DIRSETUP   = 5000
DIRHOLD    = 8000
STEPLEN    = 1500
STEPSPACE  = 1500

In any case, increase MIN_LIMIT = -0.01 to -1. That is too close to the end position and check HOME_OFFSET = -5
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20 Feb 2021 12:30 #199521 by sibelius
Thank you very much Chris

I think is the number you just posted the right one.
I ve tried to add another Pncconf to try to move the motor and one of the Y motor move in only one direction so tomorrow with a clear mind I will check the wiring and put the right number into the files.

Hopes it works otherwise i will be here again.
Your help is really precious.
Thanks again.
V.

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20 Feb 2021 13:32 #199526 by Clive S
As Chris has said re:

STEPLEN = 1500
STEPSPACE = 1500

Try doubling or tripling the above

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21 Feb 2021 00:50 #199574 by sibelius
Morning everyone

No luck.
I checked all the wiring and everything seems ok.
What amaze me is the fact that step motor X has no problem with the same figure and Y move only in one direction.
I might try to divide more the step from 800 to 1600.

Thanks again
V.

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21 Feb 2021 01:16 #199577 by tommylight
Step time and space should be 5000
-remove the connector from 7i76 X axis and insert the one from Y or Y2 or Z to test.

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21 Feb 2021 09:25 #199585 by sibelius
Good evening to everyone

Thanks Tommy, that's exactly what i did but did not solve the problem.
So what I did in the end was to check all the connection from the avion jack, I have two of these connector for each axis, one for pulse and direction and the other to broadcast the signals from the encoder.
What i found out was that two connection that i soldered were bridged, in other words they were touching each other.
So patiently I checked all the others avion jack and now is ok.
i did not home the machine yet because i have to solve another problem with my hal file at this link
https://forum.linuxcnc.org/24-hal-components/41469-alarm-setup-on-stepper-driver

Thanks again for all your help.
V.
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21 Feb 2021 12:49 #199603 by tommylight
Nice. :)
Checking the other topic...

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