Subtoutine to override limits
- grandixximo
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07 Oct 2011 04:56 #13726
by grandixximo
Subtoutine to override limits was created by grandixximo
Is it possible to write a subroutine to move out of limits?
I'm writing a subroutine for automatic tool change, and for safety reason i would like the whole tool change to be outside of the working limits of the machine, but the subroutine for ATC has to be able to move the machine out of limits, is it possible?
I'm writing a subroutine for automatic tool change, and for safety reason i would like the whole tool change to be outside of the working limits of the machine, but the subroutine for ATC has to be able to move the machine out of limits, is it possible?
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07 Oct 2011 13:05 #13745
by andypugh
Replied by andypugh on topic Re:Subtoutine to override limits
grandixximo wrote:
I don't know of a way, and I can't easily find one.
I think this might need to go to the mailing list.
the subroutine for ATC has to be able to move the machine out of limits, is it possible?
I don't know of a way, and I can't easily find one.
I think this might need to go to the mailing list.
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07 Oct 2011 13:29 #13750
by kostas
Replied by kostas on topic Re:Subtoutine to override limits
Couldn't this be done with a HAL component that just disconnects limit signals from their target, using an "and2" as a switch maybe?
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07 Oct 2011 13:32 #13752
by andypugh
Replied by andypugh on topic Re:Subtoutine to override limits
kostas wrote:
No, because EMC2 actively avoids hitting the limit switches once it is homed.
However, that might be part of the solution, you could easily protect the toolchanger area with a limit switch, active only when toolchange is not active. The problem would be that, unlike a normal limit switch, it would be possible to jog onto it.
Couldn't this be done with a HAL component that just disconnects limit signals from their target, using an "and2" as a switch maybe?
No, because EMC2 actively avoids hitting the limit switches once it is homed.
However, that might be part of the solution, you could easily protect the toolchanger area with a limit switch, active only when toolchange is not active. The problem would be that, unlike a normal limit switch, it would be possible to jog onto it.
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07 Oct 2011 13:38 #13753
by kostas
Replied by kostas on topic Re:Subtoutine to override limits
andypugh wrote:
And I guess there is no way of dynamically changing the axis travel length during this procedure? Not an elegant solution even if it can be done, though.
No, because EMC2 actively avoids hitting the limit switches once it is homed.
And I guess there is no way of dynamically changing the axis travel length during this procedure? Not an elegant solution even if it can be done, though.
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