Yes it helps but I don’t know if that’s really the best solution
reading about these issues makes me wonder. None of you have been super clear about what efforts you have taken to mitigate this, nor mentioned your firmware.
Since it sounds like something that comes creeping over time I’m inclined to think it might be worth doing a once over on mounting screws etc. I’d suggest going over and feeling if any fasteners are loose and to check the bed tram. hopefully it helps.
https://wiki.bambulab.com/en/a1/maintenance/manual-bed-tramming
1 Like
Mine is brand new out of the box and doing this. I did accept the firmware update so I am on the latest version.
I am printing a part on my A1 that is about 5.5 inches tall and it always snaps right before the bridging when it gets to being 4.5 inches high. I have tried the z hop, cleaning my bed, calibration, bed leveling, silent mode, more walls, higher infill, gyroid infill, etc. Bambu Lab really needs to fix this. I have printed this part so many times on my Prusa mini.
1 Like
Yes, I have the same problem that I described in the next post:
https://forum.bambulab.com/t/a1-and-bambu-studio-issues-z-retractions-and-axis-limits/48872/13
All right, I calibrated my bed again like described but without any success to the issue.
My Anycubic I3 is now printing again since it just do a much better job than Bambu A1
By the may no reaction to my ticket so far…
did you try to raise the temp ?! it worked for me!
And what temperature did you raise it to for what type of filament? Just saying “raise the temperature” is not much to go on.
Going to say this again . . .louder.
WOULD EVERYONE HAVING PROBLEMS PLEASE EDIT YOUR POST WITH YOUR FIRMWARE VERSION ?!
1 Like
Beyond firmware version, what are the print settings? What pattern for infill? What bed temp? What nozzle temp? What material? Is the print warping/lifting at all at the bottom (corners usually)?
Since I received my A1 combo back in late December ~ Dec 22 I have done the firmware update and my prints are fine with a few exceptions. I have had a few failed prints, nothing systemic. Most failures are attributed to the material being used or my failure to verify the infill was set to anything but grid!
I had the same issue, however in my case the nozzel, while it was hitting the print, it was not the nozzle lifting it. It was the print warping and lifting as it printed. It would lift off the table in the corners and hit the nozzle. The larger the foot print of the print the worse it was. What worked for me was to raise my bed temp to 60. That solved it completly. I primarily print in PLA, so not sure what would help with other filaments. I no longer have the issue, and am very pleased with the items I print.
1 Like
I have the same problem. I had to stop even the Benchy because the nozzle detached it off the bed
Firmware Version 01.01.01.00
Material Sunlu PLA+
bed Tem: 60°C
nozzle 0.4mm
nozzle temp: 210°C
Every other setting is default in Bambu Studio
1 Like
Having similar trouble with my new A1 mini on 01.01.0300 with Bambu PETG Basic, nozzle drags into the print immediately and peels it up, and it all goes downhill from there. Default settings.
I apparently opened this can of worms, it won’t let me edit my original post, so I will enter the information requested.
My printer was printing great for about 2 weeks then things took a left turn.
In my Bambu handy app, I noticed a new selection for enabling AI monitoring of printing.
I selected that, and abut that time is when the failures started.
I have had people say that Bambu does not have AI on the A1, so I have included a screen shot I took the day after the failures started, 4 days later the AI option was gone from the app.
The Bambu studio was the newest version, as was the Bambu Handy app.
I did a factory reset on the printer after the 4th failed print, and tried to download the most recent version, but it said my version is the latest.
The failures were happening on files sent from both Bambu Studio and Makerworld, Makerworld and the Bambu Handy App.
I only used these slicers, no others.
The benchy and other files from the Micro SD card failed as well.
I disassembled the extruder, and cleaned the gears and was looking for any possible clogs or obstructions in the filament path.
The A1 extruder is different than the core XY machines extruders in that the filament path is a straight line, so no real area for the filament to bind up inside.
The failures still continued, and at the same places in the benchy both from the one on the SD card, and one downloaded from Thingiverse to see if the file from Makerworld was corrupted.
It was also failing with STL files I had previously printed on my other printers.
I made sure on each print, that the A1 printer was selected, until the failures started I was using the factory defaults, Bambu Filament was chosen when using that, and PLA generic, when using other PLA. With the exception of PLA+ when I chose that factory default.
Generic TPU was chosen when printing with TPU, the TPU was fed from the direct spool, not through the AMS.
When the clicking and print head dragging failures started, I tried adjusting Z-hop settings, then flow rate, I slowed the speed of the print, I tried different resolutions (.08, .12, .2, .28) nothing helped.
I have since returned that printer to Microcenter, and am waiting until Bambu solves this issue and I will then buy another A1.
Hope this helps.
Ian
4 Likes
I’m having what seems like the same issue on my A1 that is two weeks old. It sounds like the nozzle is dragging on the print randomly. Sometimes it’s worse than others and a few times the print has become detached. Sometimes the print comes out okay, but there is an issue. I sent in a ticket a 1/9 and haven’t heard back.
From what I’ve heard, Bambu machines are good quality, but I wish they would get back to me on the issue. It’s my first 3d printer.
I’m using a 0.4 nozzle. I’ve reset the machine, recalibrated, cleaned nozzle, and lubricated it.
I was printing a 14 hr print, and the scraping sounded bad like it was going to break something, so I shut the print down.
1 Like
I seem to have the same problem on my A1:
- Last firmware
- Tested with BBL PLA matte (tested with 2 rolls, black and white, without calibration at first and with calibration).
- 0,4 nozzle and 0,20 layer height
- Texture PEI plate (clean)
- I’ve clean the hot end, dismantle all the extruder and clean it.
- I’ve done a factory reset.
Everything worked fine for 10/15 days, then i heard the nozzle scratching time to time. Now it’s impossible to print a good first layer.
Here is some samples:
On a light table we can see that in some parts the layer is under extruded.
My first thought was that the flow was not regular because of impurities in the filament/nozzle.
This hypothesis was supported by the fact that I have fewer problems with PETG (higher temperature → the impurities melt).
I’ve done a cold pull, but nothing change.
Reading this thread, i’m wondering if i do not have the same probklem as you: this under extrusion is the consequence of the nozzle being too low, there no enough room between the plate and the nozzle to extrude all the filament needed for the layer.
3 Likes
Thanks
This shows exactly my issue.
- First Layer to a little close
- Second Layer way to close. Under extrusion is the result.
Looks like an oily bed to me. Dish soap and warm/hot water. Don’t touch the printeable face of the plate afterwards.
3 Likes
The bed is cleaned at least one time a day with isopropylic alcohol, so no risk to have oil 
I’ve been down this road before. Isopropyl alcohol can lift oil but it doesn’t remove it. Just wiping the plate smears oil around and you get that splotchy non-adhesion areas. You need to lift and wash oil off. It can be done with Isopropyl but it takes a good amount to flush the plate. Dish soap is much cheaper.
8 Likes