Master branch dual motor gantry w/7i96

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27 Apr 2020 20:44 #165871 by dvn4life1972
Hi all. I ran through pncconf and set up the preliminary HAL and INI files for the machine. Once I opened the machine, I couldn't get the 2 Y axis motors to work together (I can jog them seperately). When I set up in pncconf, I selected Y1 as main Y, and Y2 as tandem Y2.

I've been searching for another thread covering this, and ran across one with direction on how to add it in to the HAL and INI. Thing is, they're already there as instructed.

I've attached the files, anyone know what I'm doing wrong?

Thanks,

Pat

File Attachment:

File Name: pats_plasma.hal
File Size:12 KB

File Attachment:

File Name: pats_plasma.ini
File Size:5 KB
Attachments:

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27 Apr 2020 20:54 #165872 by tommylight
Do you have separate home switches on both Y ?
Yes you do as it seems from the hal.
But you do not have home_sequence there for each joint, so that will not home a dual axis.
HOME_SEQUENCE = -1
at the bottom of each Y axis joint
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27 Apr 2020 21:18 #165874 by dvn4life1972
Thanks. That's the INI file or the HAL?

Pat

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27 Apr 2020 21:24 - 27 Apr 2020 21:25 #165877 by Clive S

dvn4life1972 wrote: Thanks. That's the INI file or the HAL?

Pat


In the ini file both joints for the Y have to have the same -ve sequence number

Then you have to home all
Last edit: 27 Apr 2020 21:25 by Clive S.
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28 Apr 2020 01:35 #165887 by dvn4life1972
I added the HOME_SEQUENCE = -1 to both of the Y axis joints. They do move at the same time in the same direction for homing, but they will not jog afterward. I get an error saying it can't jog because they're synchronized (attached screenshot and INI file). I have made no changes to the HAL file.

Pat

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28 Apr 2020 01:48 #165888 by dvn4life1972
I knew it had to be something dumb I was leaving out. Homed the rest of the machine and it all works now. Thanks for the help!

Pat

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28 Apr 2020 02:55 #165893 by rodw

dvn4life1972 wrote: I knew it had to be something dumb I was leaving out. Homed the rest of the machine and it all works now. Thanks for the help!

Pat


Yeh, just get in the habit of doing a home all
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28 Apr 2020 16:02 #165990 by dvn4life1972
Excellent advice, and thank you for it!
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