Multiple home switches on one input - SOLVED
10 Dec 2018 17:39 - 12 Dec 2018 12:12 #122148
by jools
Multiple home switches on one input - SOLVED was created by jools
Hi all
I've been looking into this but can't get a definitive answer as to if it's possible.
What I would like to do is wire up all my home inputs into one of the inputs on my MX3660 BOB/stepper driver to free up two for spindle encoding.
Currently I have three proximity switches and they take current direct from a seperate power supply then the 'input' is wired into one input each. Looking at the linux CNC docs it seems to suggest that these can be grouped together (in HAL) and there is also an option in stepconf to share all home switches on one input pin.
Could I connect all the inputs into one pin on the BOB then set it up in stepconf to share these signals. Once it homes axis 1 I can get it to trigger the input then back off a bit so the input is then not triggered. Would it then home the second axis, trigger the input then back off and so on until all are homed?
Jools
I've been looking into this but can't get a definitive answer as to if it's possible.
What I would like to do is wire up all my home inputs into one of the inputs on my MX3660 BOB/stepper driver to free up two for spindle encoding.
Currently I have three proximity switches and they take current direct from a seperate power supply then the 'input' is wired into one input each. Looking at the linux CNC docs it seems to suggest that these can be grouped together (in HAL) and there is also an option in stepconf to share all home switches on one input pin.
Could I connect all the inputs into one pin on the BOB then set it up in stepconf to share these signals. Once it homes axis 1 I can get it to trigger the input then back off a bit so the input is then not triggered. Would it then home the second axis, trigger the input then back off and so on until all are homed?
Jools
Last edit: 12 Dec 2018 12:12 by jools.
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- Todd Zuercher
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10 Dec 2018 18:33 #122153
by Todd Zuercher
Replied by Todd Zuercher on topic Multiple home switches on one input
Yes that very possible, and the way it is often done.
The following user(s) said Thank You: jools
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10 Dec 2018 19:22 #122155
by jools
Replied by jools on topic Multiple home switches on one input
Excellent. I'd seen it documented for limit switches but just not for home switches. I'll crack on with it tomorrow
![:-) :-)](/media/kunena/emoticons/smile.png)
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10 Dec 2018 19:39 #122156
by Todd Zuercher
Replied by Todd Zuercher on topic Multiple home switches on one input
You can even combine home and limits to one pin.
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16 Dec 2018 15:54 #122482
by pl7i92
Replied by pl7i92 on topic Multiple home switches on one input
i got all 9 Switches on one input & for MIN MAX and 3 for REF
You need to get the Sequence and then HOME is not HomeofFset
HOMEOFFET is the Switch
And HOME the Location the Axis moves to after Touching the Switch
So move Free From Switch
You need to get the Sequence and then HOME is not HomeofFset
HOMEOFFET is the Switch
And HOME the Location the Axis moves to after Touching the Switch
So move Free From Switch
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