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MarlinFirmware / Marlin

Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
https://marlinfw.org
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Skr 1.3 BLTouch 3.1 printer shutdown on second probe (change probe pin) #18301

Closed dertester closed 4 years ago

dertester commented 4 years ago

Hey,

i dont know where my config is wrong or if it is a bug.

Hardware: skr1.3, genuine bltouch3.1, tmc2209 sensorless homing for y,x ,2208 with optical endstops for dual z and e. Software: latest bugfix 2.0.x (same on stable 0.5)

Problem: I cant use the zmin prin as i want to keep z alignment with dual stepper/endstop. When probing (g29 or m48 with multiprobing) the tip will deploy, on contact it will retract and z will move up. Then printer shuts down and i get as last message "probing failed".

My best guess that there is a problem with re-deploying the tip or some wrong readings from pin definitions.

What i tried: M119 shows triggered when tip is retracted and open when deployed. M280 p0 s120 selftest seems to give no error. I use zmin and zmax for my z endstops.

I will post my config below. Things i changed basically: //#define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN

define Z_MIN_PROBE_PIN P1_26

in configuration.h and pins_btt_skr_v1_3.h

https://github.com/dertester/Marlin/blob/Chiron_BLTouch/Marlin/Configuration.h https://github.com/dertester/Marlin/blob/Chiron_BLTouch/Marlin/Configuration_adv.h https://github.com/dertester/Marlin/blob/Chiron_BLTouch/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_3.h

boelle commented 4 years ago

@dertester still an issue?

dertester commented 4 years ago

Its working now. The problem was on my side.

My probe was mounted a little to high.

I had a few problems that confused me: 1)I did not expect it to fail in that way, especially because i had a high value for "Z_PROBE_LOW_POINT".

2)I found different sources stating that it should show open when retracted. I assume 3.1 has diffrent behaviour.

3) Different behaviours: With probe much to high it would probe fine the first time but throw error after raising z the first time. With probe a little to high it will stop after probe and deploy pin a few times crashing into the bed.

=> It would be nice if standart error messages could give more info. g30 verbose or debug output didnt help. I saw the option for probing debug after i fixed it manually. So again i assume my lack of knowledge :)

github-actions[bot] commented 4 years ago

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.