What causes this first layer issue?

[geo.branc]

X1C. Bambu black basic pla. K value .21. Standard speed. Standard .20 settings. Nozzle .4. Temp 220. Bed 55. Hunidity 14%. Door closed. Fans off for first layer. They r long runs.

[RocketSled]

The rippling is either slight overextrusion or bed adhesion issues. I’d go with adhesion as a first shot. Wash plate, use glue stick, hotter bed, lower 1st layer speed. Maybe bump up the first layer thickness a teensy bit.

[cl33]

Clean the rods with IPA

Is my PEI plate busted? Under/overextrusion on a single point

I think the original PEI plate had a few issues with longevity. The first 2 I had degraded within about 6 months and eventually lost pretty much all stickiness across the plates. The 3rd one (still an original one) I have is still going strong after about 6 months. The secret is to… (contrary to much info on the net) never touch it (except for the very front edge where it dosent print) with your bare hands/fingers. Even if you think you have the cleanest hands in the world the tiny bits o…

Klappern und schlechter Druck bei X-Y Bewegung

Nein ist es nicht. Aber die Lösung ist auch einfach Hatte ein Ähnliches Problem (nicht irritieren lassen vom Creality Schriftzug. Habe ein Sticker auf einer Cool Plate). [20230724_201600] Lösung: Crabonstangen gut mit IPA reinigen. Nachdem verlief mein Druck perfekt

[johnvonbrol]

Hi All, I’m new proud owner of a X1 Carbon with AMS and I’m confused about the first layer I got yesterday.

I’ve cleaned the bed, reset the printer to factory settings, performed a auto calibration and result was better but not perfect, there is still some bumps in the first layer.

Could you advise what else I should do ?

[geo.branc]

So ill tell u what i did may or may not wrk for u. I put on the engineering plate and retrammrd as per bambu instructions. Then i switched to the plate i was gonna b using. I then proceeded to print a first layer over the whole bed and while it printed i adjusted the bed knobs. When i was satisified (but not yet perfecrlt but close). I then did a bed level w that plate. Now the whole first layer whole plate is prefect. Fyi it took about 10-15 first kayer prints to get it close.

[darren.shady]

I have the same issue, on all build sheets. happens in the same place every time
when looking under the right light I can see bubbles on the build plate. Since this is a consumable, I’m doubtful they’re going to replace mine for free, but it clearly is the problem.

[YoungGPaGam3r]

I have this exact problem on my A1 mini. What is interesting is this only happens when I slice models in Bambu Studio. In Bambu Handy, everything prints 100% perfect. I even printed a plaque that consumed the entire print bed. The plaque was printed from Bambu Handy without any issues. Immediately after, the next print was sliced in Studio, with this exact result you have. Then printed something else from Handy with perfect 1st layer. I have repeated this many times.

Contrary to all the recommendations on tramming your bed, I believe the issue is a first layer problem in the slicer that was introduced at some point in time, such that the pre-sliced models have no issues.

[Carlos_Amelunge]

Had the exact same problem with first layer issues in BambuStudio. Tried the same model in the Bambu handy app and now it works perfectly. I am not sure what the problem was but that solved it.

[YoungGPaGam3r]

Just as an update, this has not been a problem for me is quite some time. Just make sure the bed is clean. I clean my build plate with down power wash, and dry with lint free paper towel. The key is to make sure your cleaner is a gentle degreaser. Once cleaned, can print for up to 2 weeks without cleaning provided I wipe it down with a fresh paper towel and a small amount of filtered water.