No more sharp edges

Hello everyone.

I’m not sure if I’m in the right place with the A1 forum, maybe it’s not just an A1 Mini issue… For some time now, my A1 Mini has not been printing sharp edges anymore. Instead, the edges are fraying and somehow wavy. I’m not exactly sure how to describe it, so I took a photo. Does anyone have a tip on why this is happening and what I can do to fix this issue? I’ve already performed a calibration via the touch panel and cleaned and oiled the axes. After the calibration, the problem doesn’t seem as bad, but the edges are still not as smooth as they should be. The photo shows this clearly – these should actually be smooth, sharp, straight edges.

Many thanks.

This is often thrown out as the reason and could be here too.

Have you dried your filament? I do not mean throwing a desiccant bag in with it when in the box, using an actual dryer designed for the job.

Do you have a different filament to try? BTW even filament right out of the bag can have moisture in it.

Which brand and type of filament is it? If not from Bambu Lab, have you calibrated it?

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Hello @MalcTheOracle ,

I didn’t think about the filament yet, thanks for the hint. It’s esun filament and I used to use this all the time. I do not have an filament dryer but for now I will try with some other filament (from elegoo) and have a look. Calibrating is the flowcontroll and flowdynnamic in Bambu Studio, isn’t it? I did some calibration times ago for non-bambu-filament but thought there were no differences between the single filament profiles so I often use the bambu default profiles. I may take some time an calibrate again, the concrete filament is nearly empty and for the new one I would do it. Thanks for the tip.

Is the hotend clipped in securely? If it’s loose, the z offset calibration could be wrong, leading to a massive first layer squish and the filament squeezes out between the bumps in the texture.

Check out the Calibration section of Bambu Studio.

You have Flow Dynamics and Flow Rate to go through.

Yes it is clipped in correctly. I think you can not clip it in false because the clip won’t close if it does not fit properly?

I wanted to do that now but the buttons are grayed out:



Is the printer:

  • On?
  • Connected?
  • Idle (not printing/starting up/etc)

If unsure:

  • Turn the printer off
  • Wait 30 seconds
  • Turn the printer on
  • Wait until the display has illuminated
  • Confirm the printer is detectable in the Bambu Studio [Device] tab
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did you choose hairy edges in the bambu studio

Hello again. Many thanks for the quick responses, tips, and follow-up questions!

After a reboot of both the PC and the printer, the calibration buttons were back. But before I started the calibration, I took another look at the device and filament settings as well as the filament profiles…

Please don’t hit me or laugh at me: I’m not entirely sure, but it’s possible that I’ve been printing PLA with a generic PETG profile recently. Could this explain the blurry edges? I have to admit that I almost never pay attention to the filament profile because I’ve mostly been printing with PLA lately and had found and set a profile that worked for me. At some point, it probably got adjusted or, more likely, I accidentally or subconsciously changed it. Anyway, I’m now (again) printing with the “Generic PLA” profile and everything is back to normal. As I mentioned, I’m not 100% sure whether it was actually a PETG profile I used for PLA or if another profile was set as the default every time I opened Bambu Studio (I usually open an empty Bambu Studio and then drag in STL files).

Anyway, the issue has more or less resolved itself, and as often happens, the problem was sitting in front of the computer—or, in this case, in front of the printer :slight_smile:

So, again, many thanks for your help, and best regards!

Yes, as the temperatures for the build plate and hot end can cause unexpected outcomes.

Try again, with the correct material type.

No hits, punches or belly tickles will be used against you. I reserve laughing as a possibility.

“I was drunk”

Should have preceded your admission.

Keep in mind that you can dry your filament on the printers heatbed.
Set the bed temp, put the roll on the plate, cover with the base of the cardboard boc, flip the roll over after half the time has passed, wait for completion, done.
https://wiki.bambulab.com/en/filament-acc/filament/dry-filament

Moisture may not be the (only) reason, but troubleshooting really only works if the filament is definitely dry.

Or, indeed, use PLA settings for PLA :sweat_smile:
Been there, done that :sweat_smile: