Home switches stopping machine but not latching fully
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11 Sep 2026 23:45 #349586
by RMJ fabrication
Home switches stopping machine but not latching fully was created by RMJ fabrication
Greetings everyone, I call for help on a new issue with my plasma table. So basically when I go to press home all the homing sequence begins. The z axis homes successfully 90% of the time, the x axis homes successfully half the time, and the y axis gantry does not successfully home. I get these errors with the x and y axis.
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12 Sep 2026 02:49 #349588
by PCW
Replied by PCW on topic Home switches stopping machine but not latching fully
Sounds like either an electrical noise issue or maybe contact bounce.
What type of switches are used and what are they connected to?
What type of switches are used and what are they connected to?
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12 Sep 2026 12:39 #349597
by rodw
Replied by rodw on topic Home switches stopping machine but not latching fully
Just checking you know, home switches need to stay triggered to end of travel.
Also be sure to add a home-offset to move off the home switch trigger
Also be sure to add a home-offset to move off the home switch trigger
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14 Sep 2026 05:26 #349625
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Replied by RMJ fabrication on topic Home switches stopping machine but not latching fully
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15 Sep 2026 11:16 #349646
by rodw
Replied by rodw on topic Home switches stopping machine but not latching fully
Please share your hal and ini files.
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16 Sep 2026 17:35 #349680
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Replied by RMJ fabrication on topic Home switches stopping machine but not latching fully
Here is my HAL and INI files.
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16 Sep 2026 19:16 #349685
by PCW
Replied by PCW on topic Home switches stopping machine but not latching fully
You might plot the switch hal signals with halscope when homing to get a better
idea of whats going on.
(it might be contact bounce or EMI)
idea of whats going on.
(it might be contact bounce or EMI)
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17 Sep 2026 06:52 #349695
by rodw
Replied by rodw on topic Home switches stopping machine but not latching fully
Please try using a HOME_OFFSET of 0.1 inch. You want the axis to be off the home switch after homing. Not sure whether this should be positive or negative. If it fails, change the sign and try again...
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18 Sep 2026 05:36 #349701
by RMJ fabrication
Replied by RMJ fabrication on topic Home switches stopping machine but not latching fully
I ordered new switches and replaced them and now the homing sequence is working and latching fully. Now homing works all the time with no errors and I did not change any settings in the configuration.
The old switches are at least two years old so it could have been contact bounce. Big thank you to everyone for your resourceful feedback and kind help.
The old switches are at least two years old so it could have been contact bounce. Big thank you to everyone for your resourceful feedback and kind help.
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