BLTouch trigger issue on RRF 2
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Open bed.g and delete/comment the M307 line for the heater channel you are using to drive the BLTouch servo
I just got mine working last night.
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@Parabolic said in BLTouch trigger issue on RRF 2:
The M280 isnt working - returns a invalid servo index 0
What exactly are you sending for your M280?
Does M401 and M402 work to deploy and retract?
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@64bit Its already been done. Thanks!
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@Phaedrux No my 401 & 2 does not.
Im not sure what you are asking about the 280 -
if m402 and m401 does not work, there is a problem with your wiring.
the extension wire of the bltouch tend to give poor connections. connect the bltouch directly and test again.
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Can you send M98 P"config.g" in the console and post the response?
When you say M280 isn't working and giving you that servo index 0 message what exactly did you send for your full M280 command?
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Can you post a photo of how you have the BLTouch wired?
Your config.g is using heater 3 pin on the expansion port. Are you connected to the right pin there?
If you send M401 and M402 they don't work?
If you sendM280 P3 S10 I1does that work? -
@Phaedrux said in BLTouch trigger issue on RRF 2:
M280 P3 S10 I1
Yes, 401 and 2 retract and extend the pin.
Yes I'm connected to the right pin on the expansion header - just like in the setup pics. -
I am having the same issue! my config.g looks the same as above and M401 and M402 both work. I did notice that the trigger type listed in the Z-Probe section of the Machine Properties tab says Unknown (9).
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@Parabolic said in BLTouch trigger issue on RRF 2:
Yes, 401 and 2 retract and extend the pin.
Ok, but before you said it didn't, so I'm a bit confused.
If it's just not triggering while doing a probe with G30, then again I say
@Phaedrux said in BLTouch trigger issue on RRF 2:
Are you super sure the white wire is good? Not triggering would indicate the white wire isn't connected.
You could experiment with this since its a BLTouch 3.1
https://www.antclabs.com/logic -
@Phaedrux Sorry for the delay.
I just wanted to thank you for all your help!
It was my own bonehead mistake. I had originally used an knockoff BL and totally forgot that I had put the resistor across the signal to ground wires inside the harness.
Using my meter I finally figured out the issue with both ends unplugged.
I removed the resistor and it g28 and g29 perfectly!!
I was going out of my mind!
