I just bought 0.2 nozzle for my A1, but whenever I print something the nozzle is practically dragging all of the first layer on the bed and extruder gears are skipping every few seconds. I made sure to level the bed and try to print on all completely default settings while making sure to select A1 with 0.2 nozzle (same outcome on 0.06 and 0.14 layer heights), but the effect is the same. Does anybody know what could be the reason for this?
I don’t have your printer but this is couple of things you can change.
Option 1:
First layer height: Set to 1.2 or 1.4
Option 2:
Adjust the Z offset in the start G-code set it to this G29.1 Z{-0.00}
If you need more offset you have to change it to a plus valve like this G29.1 Z{+0.02}
This is what you will look for in the machine start G-code in the printer settings.
;===== for Textured PEI Plate , lower the nozzle as the nozzle was touching topmost of the texture when homing ==
;curr_bed_type={curr_bed_type}
{if curr_bed_type==“Textured PEI Plate”}
G29.1 Z{-0.02} ; for Textured PEI Plate
{endif}
If link needed
A1 mini Bed Tramming
After playing around with it and finally settling on 0.08 offset first layer looks again perfectly and without any gear skipping. Thanks a lot!
May you please share the exact G-code snippet for this part that you are ended up with?
Thanks!
Wouldn’t it be easier just to select smooth PEI plate in bambu studio even if you use the textured one? z-offset will then be 0 rather than -0.02, easier than modifying the gcode.
Thank you, I didn’t know that you were usign OrcaSlicer.
Will give a try as I’m struggiling with first layer issues on a Smooth Plate (https://www.reddit.com/r/BambuLab/comments/1cpcgii/a1_mini_first_layer_issues_with_smooth_pei_plate/) and I want to try to play around with the Z-offset
My a1 is dragging on the first layer so much it’s touching and forming blobs. How do I fix this???
I only see this on RARE occasions but then I just use a sheet of heavy paper on the bed for the levelling.
Once done I remove it and have a matching offset.
Where exactly in the G code do you put this?
Still works. Was never getting a good print with a 0.2 nozzle and the texture bed on the mini, solved it right up. Orca Slicer to the rescue!!!
Changing this G-code does not work for manual Flow Dynamics Calibration. Does anyone know how I can define a Z offset that also works for manual Flow Dynamics Calibration?
Hmm. Maybe with orcaslicer but do you use that?
I’m not sure what you mean by manual flow dynamics calibration… In orca you apply the z offset to a printer profile (say by nozzle) and it applies every time, over any plate.
hi there guys,
i feel dumm, but I just could not create a new thread about my problem
anyway, I’ve replaced the nozzle from the stock 0.4 to a new 0.2 in my A1 and since then, it stopped print properly…
placed the original 0.4 back, re-did all the calibration process, now, cannot print anything, literally…
this picture is from my latest benchy-try-out
sadly, I can’t reach anybody at Bambu and now I’m a bit sad…
ok…so I cannot even send photos here
is there an e-mail address where I can reach support?
OK, I have the same problem. Using A1 printer with both Bambu PLA and Elegoo PLA filaments. Bambu Lab Version 2.5.0.66
Just recently used my Bambu textured bed plate with both 0.2 and 0.4 nozzles and experienced nozzle dragging.
Never had the problem before now as I always used the smooth high temp plate.
I have tried everything suggested in several posts. Checked all the relevant screws etc. Unchecked the ‘Retract When changing Layer’ Raised the G29.1 Z{+0.8}. Selected Smooth plate when using textured plate. Nothing works for me.
At the moment what I am doing is to pause the print immediately after the initial layer, remove that layer from the bed and then continue with the print. This works ok but is not really how the printing should be done.
Hope someone can help me.
Hey mate,
Hope you are well,
Just wanted to check to see if any of the problems in A1 Inconsistent Failures with .2 Nozzle - #14 by Shadows are the same as the ones you are experiencing.
Let me know if this was your issue.
Cheers, 
Hi Shadow,
Yes my issues are the same as everyone else. I have tried both 0.2 and 0.4 nozzles but same problems. I don’t know how to make a separate post so only did a reply. My username is johnhb.
All good, I think, because you are at the basic level, you are unable to make a topic, but I think I know what your issue is: The textured plate surface is slightly rough, so when using small layer heights (especially with a 0.2 mm nozzle), the nozzle can drag on the first layer.
What I would do is try on Bambu Studio would be;
- Increase first layer height (e.g. 0.16 mm for a 0.2 nozzle).
- Reduce the first layer speed.
- Adjust the Z offset slightly higher.
Hope this fixes your issue.
Cheers,