- Configuring LinuxCNC
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- Using soft limits and physical reference points to home robot arm?
Using soft limits and physical reference points to home robot arm?
24 Aug 2018 09:44 #116516
by andypugh
Are they microswitches or something else? Have you ever seen one?
Replied by andypugh on topic Using soft limits and physical reference points to home robot arm?
Its a strange one. There are cables named LS1 and LS2 which according to the schematics are limit switches. I believe they serve the first three joints and are all on a common circuit and Normally closed.
Are they microswitches or something else? Have you ever seen one?
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24 Aug 2018 21:24 - 24 Aug 2018 21:25 #116562
by Wireline
Replied by Wireline on topic Using soft limits and physical reference points to home robot arm?
I've had a rummage around inside the housing to see if I can spot them but no luck. The exploded diagrams dont seem to show the physical bodies either.
They are present on the drawings, and originally went to the safety board of the CS7M controller, sitting in a big series line with lots of other Estop kit.
Putting an ear to the unit, there is a faint click when it reaches its stop, but I am grasping t straws really. One option might be to fit some switches myself.
They are present on the drawings, and originally went to the safety board of the CS7M controller, sitting in a big series line with lots of other Estop kit.
Putting an ear to the unit, there is a faint click when it reaches its stop, but I am grasping t straws really. One option might be to fit some switches myself.
Last edit: 24 Aug 2018 21:25 by Wireline.
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25 Aug 2018 15:48 #116574
by Wireline
Replied by Wireline on topic Using soft limits and physical reference points to home robot arm?
On a related issue, do you recall starting to write a component to manage the compound movement of J5 and 6? I have what looks like an early draft of it and would like to get it working. Happy to figure out the code myself, but am curious about a particular part of it. Should I start a new topic or perhaps message you privately?
Cheers
Ross
Cheers
Ross
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28 Aug 2018 15:12 #116711
by andypugh
Replied by andypugh on topic Using soft limits and physical reference points to home robot arm?
Start a new topic, perhaps someone else needs it?
As for the limits, if they click then that excludes the possibility of them being inductive or optical.
Maybe the cables are actually shorted, or one switch it broken, or permanently set?
As for the limits, if they click then that excludes the possibility of them being inductive or optical.
Maybe the cables are actually shorted, or one switch it broken, or permanently set?
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