[BUG] Pause/Resume parks twice, then start with incorrect Z value

[tomaszczura]

Did you test with a precompiled firmware?

Yes, and the problem still exists.

Bug Description

I have a problem with pausing and resuming prints. After I pause and resume, head parks twice, and starts with incorrect z.

Bug Timeline

No response

Expected behavior

I expect print resumes at the same Z level

Actual behavior

No response

Steps to Reproduce

1. Printer prints, it is at Z 1.6 (example)
2. I click pause - head parks (240, 230, 20), click Continue.
3. Then I click resume. Head is homed, moved to (0,0) and to correct Z - 1.6
4. Then head is parked again to (240, 230), but is not raised - Z axis stays at 1.6, but the printer shows 20
5. After head is parked and I click Continue, it is again homed to (0,0) and then starts printing - but it thinks it's Z axis is at 20 even though it is at 1.6. It starts lowering and touches bed

Version of Professional Firmware

Marlin 2.1.3 MRiscoC Ender3V2-422-BLTUBL-MPC, based on bugfix-2.1.x (Dec 22 2022 02:12:07)

Printer model

Ender 3V2

Electronics

Board 4.2.2

Add-ons

Filament sensro, Cr Touch

Bed Leveling

UBL Bilinear mesh

Your Slicer

Cura

Host Software

None

Additional information & file uploads

No response

[MadTerminator]

Same problem with non-ubl version

[mriscoc]

A new version is cooking right now and that problem can't be replicated, please wait to do the test with the last version.

[MadTerminator]

By when will it come out?

[mriscoc]

By when will it come out?

Maybe the next week.

[BradGillies]

2.1.2 firmware and same issue. Cr touch probe does not activate when homing after pause or print completion. Causes bed crash.

[mriscoc]

Issue can't be replicated in latest firmware version.

[BradGillies]

Miguel I have been working on this issue trying to find a cause but I cannot seem to mitigate it. I did not have this issue on the stock Creality firmware. The issue seems to occur when a print is completed or stopped and the machine is left in that state. If I simply start another print, when the printer executes the G28 to home the print head it will zero X and Y and then proceed to Home Z but will not deploy the Z Probe (CR Touch) If I were to execute a home command from the screen manually the Homing will work as expected. I am pretty new to all of this and still learning the ins and outs of setup so this firmware is a big jump from the stock firmware. Could there be a setup issue in the firmware that is causing the probe to not deploy when it encounters the G28 command? I think I have it setup correctly but this is the only instance that will have a failure. Today I forgot to manually home the printer before starting a print and ended up destroying my build surface so that’s not ideal.

Any assistance would be appreciated to avoid doing more damage.

Thanks

Brad Gillies

[mriscoc]

I have been working on this issue trying to find a cause but I cannot seem to mitigate it. The issue seems to occur when a print is completed or stopped and the machine is left in that state. If I simply start another print, when the printer executes the G28 to home the print head it will zero X and Y and then proceed to Home Z but will not deploy the Z Probe (CR Touch)

Not reproducible, the steps that I follow: 1- turn on printer 2- select a file 3- print file 4- wait to the end, and press "Continue" 5- go to media menu and select other file 6- print the new file Everything works as expected.

Because your issue is not relating to the OP (Pause/Resume) please open other issue.

[github-actions[bot]]

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.