BLtouch 3.1 on Duet 2 WiFi 1.05 does not work

Phaedrux

Are you sure you have the yellow wire connected to exp.heater3?

Schotte

@phaedrux

yes, we have already checked several times

Phaedrux

Can you test with a different heater pin then? exp.heater7 perhaps? Alter the M950 command accordingly.

It may also be worthwhile testing with a fresh set of configs from the config tool.

https://configtool.reprapfirmware.org/Start

Schotte

@phaedrux

We had already tested heater 7 and will be testing heater 5 and 7 again soon.

I just created a new config, we will test it afterwards.

Also, a big thank you for your help! That's great

JoergS5

@schotte I am not sure, but
M558 P9 C"^zprobe.in" H12 R1.0 F500:F120 T6000
F parameter looks wrong to me, it should be F500:120 (so without second F letter).

Schotte

@Phaedrux

Have tested heater 5 and 7, Bltouch still doesn't work.

New SD card with new system didn't help either.

Phaedrux

Can you test with the BLTouch leads connected directly to the board without any extension?

The M558 problem is resolved, now we just need to get the servo communicating.

You mentioned in your first post that the power on pin test of the bltouch moves slowly. Is the BLtouch held upright? Have you tried connecting only 5v and ground?

Schotte

@phaedrux

We can no longer connect the Bltouch directly without further.

If we unplug the yellow wire from the Heater5 pin, the Bltouch will do the self-test at normal speed. Once the yellow wire is reconnected, again slowly.

@JoergS5

we will test again when the BLtouch is running - thanks for the tip

JoergS5

@schotte another thing to check is whether the probe pin can move correctly. The distance and freedom of moving is defined by the screw at the top which can be changed with an allen key.
https://www.antclabs.com/bltouch-v3
the picture

Schotte

@joergs5

The pen is smooth, shouldn't be a problem

Our measurement is 0.2mm

Phaedrux

If you're certain the wiring is correct and there is continuity on the wires there is still the possibility the probe itself is defective.

Do you have another printer to test the probe with, or another probe to test on this printer?

Schotte

@phaedrux

I'm helping a friend online through Teamviewer and he lives about 90 miles away. He's going to order a new one and then we'll see.

We will then report, hopefully it works with the new one.

Schotte

Hello

We tested the direct connection with a new BL-Touch and it worked. We then found out that it was the extension cable for the BL-Touch, the internal resistance was too high.

Everything works now.

Thanks again for the help!!!!

Schotte

This post is deleted!