CR10 Mainboard

[opal flume]

My CR10 with bltouch mod does report "Recv: z_min: TRIGGERED" with M119. I uplugged the z axis connector completely and it still does so... so, is this an issue with the mainboard?

[fair pine]

AI Help

It sounds like the issue may be related to the wiring or configuration of the BLTouch sensor. Double-check the wiring connections and make sure they are secure. Also, ensure that the correct firmware settings for the BLTouch are configured. If the issue persists after checking these, then it could potentially be a problem with the mainboard.

WARNING: This response is AI generated and may contain errors.

[versed mountain]

thats default

bltouch reports as triggered usually even if a bltouch doesn’t exist because it would prevent crashes on the bed

if you’re talking about the Z limit switch, yes thats also default if you unplug it

[opal flume]

you are right, it is a closed active switch.

[versed mountain]

the connection to the mobo is normally closed aka connected, and when the Z axis hits, it opens the connection, releasing the connection

[opal flume]

ok, then there is a connection issue which I have to find

[versed mountain]

just remove it from the config

a bltouch can do z homing too

[opal flume]

the bltouch is the z homing

[versed mountain]

huh

then I guess there’s something wrong with your config

are you perchance using a clone bltouch?

Assuming you’re using klipper, bltouches that are clones usually have defects that render them unusable unless you add one thing on your config

[opal flume]

no. And it worked for years, so surely not a config issue. But thanks, your hint helped me. I forgot, that this is open when touched

no it is still marlin and the old original V2.x board

[versed mountain]

ah, good day then, I’m way too removed from Marlin to give advice

[opal flume]

I will repair it a last time and the go for a new CoreXY... just have not decided which

[opal flume]

ok, was a loose connection.