double clamp movement system
- fehim
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17 Jun 2021 13:10 #212273
by fehim
double clamp movement system was created by fehim
hello all,
I have a project with linuxcnc for a wood drilling project. it using two clamps for the moving of a wood material. These clamps should keep and release this material until the limit value then it should go back respectively. How can I handle with this problem??
I have a project with linuxcnc for a wood drilling project. it using two clamps for the moving of a wood material. These clamps should keep and release this material until the limit value then it should go back respectively. How can I handle with this problem??
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- Aciera
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17 Jun 2021 15:06 #212278
by Aciera
Replied by Aciera on topic double clamp movement system
Can you provide more information?
Are the clamps on an axis controlled by linuxcnc? Where does the "limit value" come from? Are the clamps handled from gcode?
Maybe a picture of the setup could help.
Are the clamps on an axis controlled by linuxcnc? Where does the "limit value" come from? Are the clamps handled from gcode?
Maybe a picture of the setup could help.
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- andypugh
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18 Jun 2021 15:29 #212339
by andypugh
Replied by andypugh on topic double clamp movement system
I would look to do this either with a G-code subroutine or with a custom HAL component.
But I suspect that Classic Ladder would also be an option.
What manner of actuator moves the clamps?
But I suspect that Classic Ladder would also be an option.
What manner of actuator moves the clamps?
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- fehim
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28 Jun 2021 08:37 #213108
by fehim
Replied by fehim on topic double clamp movement system
We have 2 servo motors connected to clamps that move synchronously in the x-axis. We want to advance the product by holding it with at least one without ever leaving it. For this, using the moveoff component, we first open the first clamp and go as far as the advance amount and close the clamp. Then we do the same for the second clamp. While there is no problem in the first drive, the moveoff motors stop giving output at a random point in the second drive. Is there any way to solve this problem? Or is there a way to stepwise drive two synchronous motors other than moveoff? Or can we define two separate axes for two motors and then make them move synchronously?
linuxcnc.org/docs/2.7/html/man/man9/moveoff.9.html
any help will be appreciated. Thank you
linuxcnc.org/docs/2.7/html/man/man9/moveoff.9.html
any help will be appreciated. Thank you
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- andypugh
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28 Jun 2021 10:38 #213116
by andypugh
Replied by andypugh on topic double clamp movement system
I don't think that Moveoff as the way to do this, at all. (It wasn't one of the three options that I suggested...)
It might be a good use for "extrajoints" but that option only exists in Master (the development version) linuxcnc.org/docs/devel/html/man/man9/motion.9.html
I think that it would probably make sense to define your clamps as axes U and V and control them via a G-code routine.
It might be a good use for "extrajoints" but that option only exists in Master (the development version) linuxcnc.org/docs/devel/html/man/man9/motion.9.html
I think that it would probably make sense to define your clamps as axes U and V and control them via a G-code routine.
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