Duet 3 6HC configure firmware dual Z motors Please Help
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Does the BLtouch have a length of wire issue,(resistance) on my machine there is probably 6 or 7 feet of wire between the board and the BLtouch...
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Very strange. Testing with another BLtouch would be informative.
Maybe it's picking up noise on the servo signal wires?
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Tomorrow I'll try to short whip it and see if that could be the case... going to piss me off if I have to run a shielded cable just for the BLtouch...lol... wouldn't surprise me I guess... I lack the experience with this sensor to know if EMF is an issue with other electronics
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Update, I looked at another forum page and saw that some one changed there "P" value in there G31 P500 X10 Y10 Z2.5 ; set Z probe trigger value, offset and trigger height line from P500 to P100 and they claimed that this solved their problem. I made this same change with no effect. then I ran a 2 meter long cable outside of the wire tray to the sensor and vwala, it is homing and printing perfectly. So in my case it appears that EMF and wire length plaid a role in the culprit
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Thanks for the update. Care to share a photo of what the cable run looked like that cause issues? What all was running in it? How long was the run?
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it is about 3 meters of wire from one end to the other and the harness has 16 conductors in it to run several fans, temp sensor, heater wires, extruder motor and the BLtouch. I use those speed butt connectors for my wire ends as it makes terminations very easy. once I get all the terminations finalized I will stream line it and work on cable management.
