Solved Trouble with BLTouch
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@Kolbi said in Trouble with BLTouch:
Not sure if it matters,
It doesn't in this case. The M950 is setting up the servo control pin for the deploy and retract macro and is not directly related to the M558 pin definition which is defining the probe trigger signal pin.
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@Phaedrux
It only alarms out sometimes. It does do the initial deploy retract that happens at power on. It does not respond to M401 / M402 or M280 commands.I'll try to get it to startup and go to an alarm state and reset it.
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@Kolbi
The wiring matches the diagram you attached. The connectors seem to be a reasonable firm fit on the header pins. I'll remove the dupont housings and check the individual connections. -
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Mostly cause is the wiring for the servo control to the heater pin, or the probe itself. I'm leaning to the probe itself due to the error at power up.
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@Kolbi
At the moment nothing else is plugged in. I tried plugging everything in individually instead of in larger grouped connectors and it is working.I also found the issue. I accidentally grabbed a 5 pin dupont housing for initial tests instead of a 4 pin so instead of Heater3 I was connecting to E3step but the wiring still looked right to me
Thank you both, glad nothing on the board was fried by my goof up
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@JPH Nice! ...I've done the same thing before
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I did some more testing and also found that it will go into alarm mode if the probe is not vertical like it would be on the printer. If I hold it vertical it starts up fine. Sideways or inverted it goes straight into alarm mode.
I don't think my other BLTouch is this picky.
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