Bugs with Z-Offset menu

troglle commented 2 years ago

I installed E3V2-Default-v4.2.2-v2.0.1.bin (firmware is stock, downloaded the precompiled file from https://github.com/jyers/marlin/releases/) with original icons pack (DWIN_SET (Original)). When try to tune the z-offset (from the z-offset menu) I encountered these bugs (Live Adjustment option is active - checked):

First one - when changing the z offset option (in the menu) from positive to negative values and then back to 0, the 0 value change to - 0.00 (minus, before it was 0.00)
Second one - when tune the z offset with Microstep Up/Down, after several clicks these options stop working - z offset values are changing, but the stepper motor isn't turning. I need to enter the menu again to fix this.
Third one - when try to home z axis (from the option in the menu) the axis is homing and then the hot end and bed go to opposite side from end switches. I had to turn off the printer to prevent damage.

Description

Steps to Reproduce

[First Step]
[Second Step]
[and so on...]

Expected behavior: [What you expect to happen]

Actual behavior: [What actually happens]

Additional Information

Include a ZIP file containing your Configuration.h and Configuration_adv.h files.
Provide pictures or links to videos that clearly demonstrate the issue.
See How Can I Contribute for additional guidelines.

MikeOxawopper commented 2 years ago

i Have similar issues with my install, im sure it was better a couple of months ago but i had an issue with the nozzle becoming too close so i tried it from the manual menu but although the numbers were scrolling no noticeable difference was seen in height.

Secondly the manual values were wildly different to the auto mesh by up to 1/2mm, having re-auto meshed twice the z height checked but was too high like a dog laying a cable! paper test was perfect but to get it to print i had to baby step from -2.80 to -3.18.

I used to be able to manually dial x y z when live was enabled but that appears to do nothing either, only moves with dial and click. I can print the same file 3 times one will be too high, one too low but if i tune low z to the high z or the high z to the low z value it will work?

drdansyco commented 2 years ago

I can confirm. I'm having the same issue. Now my fix was using creality firmware. But it's not the fix I'm needing. I did try older versions. With no z offset adjustment.

ddudek commented 2 years ago

I can confirm as well, I'm having issues with z-offset. Had it 3 times, the scenario is as follows: I change the nozzle, do the z-calibration, I even double checked this and moved z high and then low etc, then I do the full leveling, try to print, and then the nozzle is printing in the air ~ 0.5-1mm above the bed. Version 2.0.1 from compiled releases, Ender 3 v2, BL touch

After the wasted print, I do z-offset again, and second time seems to work fine.

Jyers / Marlin