My 1st print on my new A1 was the 14 minute Benchy. It printed fast and flawless.
The next several models that I sliced with Bambu Labs had bad 1st layer issues.
I only tweaked the infill settings.
I’ve also thoroughly cleaned the PEI plate
IMG_2723|375x500
I then started going through the included prints that came on the SD card(scraper, desk organizer, bag clip, flying toy) and they all printed great.
All on Bambi Basic PLA
Have you confirmed that you have the right build plate selected? It’s easy to miss that drop down.
How did you clean it?
Yes. It defaults to textured PEI
I thoroughly scrubbed it with dish soap and a sponge.
It printed the Benchy perfectly on a plate that came right out of the box.
After the 1st failed print I cleaned it, and still failure.
On the pre-sliced included prints, there are no problems.
If you take a close look at the edges of the first layer, you can see that the filament is getting darker, indicating a change in flow, that’s likely untuned filament. Did you try to run the filament calibration included in Bambu Studio?
There is also a setting to adjust the flow for the first and last layer. Increasing this will likely resolve this issue.
It might also be interesting to know what layer height you are using and if you changed the layer height of the first layer. Going with a thinner first layer on the textured plate is usually an issue.
Default 1st layer height was .1. But I had set it to .2.
I thought I check flow calibration.
I’m gonna try again and make sure i
What filament profile are you using? You have the right nozzle size selected? Is there a difference in location of print on the plate between gcode prints and the one you’re slicing?
It loaded the filaments up by the RFID.
I’m using the .4 nozzle that came with it and I have that setting selected.
I did a flow dynamic calibration and it was a little better.
OK.
It was set on .2 nozzle. I swear I had it set to .4 at first.
Changed that and it appears to be printing very well, and 3x as fast.
Ok glad you got it figured out!
So what I understand is that on the first layer it extrudes enough to cause squish the plastic to the bed. This is based off the zoffset which I think is dependent on the type of plate selected. So if you have too little extrusion or too much extrusion based on what you’ve told it weird stuff is going to happen. Having the wrong nozzle size selected definitely going to do weird stuff
