I’m a brand new A1 user and new to Bambu in general (coming over from using a Creality Ender 5 Pro). I printed a fairly quick multi color Benchy in about 30 min from the SD card. It came out pretty good, but I do see some “shutter” lines on the top edge of the boat (green part next to my thumb). Can this quality be improved? I would assume the gcode is what is on the SD card so perhaps there is no way to change it. Any other good ways to validate quality? Would I need to pull something into the Bambu slicer and do something with quality settings in there? I’m guessing that printing default prints from the card or directly from Handy app have limited options to adjust quality.
If you mean the ones in the bottom middle of the image those are visible layers.
They are expected.
FDM printers print a layer at a time, if you printed a default Bency, you likely printed at 0.2mm per layer.
That is what you are seeing.
Benchy was created as a torture test to confirm printers could handle common printing needs. Including overhangs, bridges, curves, tight layers and more.
You cannot get rid of those as they are a physics issue.
You can make them look smoother though, again, using physics.
You can print the Benchy at a thinner layer height, 0.12mm, or 0.8mm for example.
If you have a smaller nozzle, a 0.2mm hot end, you can print even thinner.
If you are wondering if what you printed looks good, it does, at least from the angle you provided.
Your Bambu Handy (BH) question.
It has limited options you can change, they are mostly restricted to the build-plate and filament choices.
Bambu Studio (BS) is used to fine-tune things beyond the choices made by the profile designer.
Printing a 90 min Benchy on your Ender vs 30 min on the Bambu…
What do you really expect to see…??
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Thanks for your detailed response. To answer your question:
“If you mean the ones in the bottom middle of the image those are visible layers.”
I’m referring to the jagged green edge right by my thumb in the picture. I’m aware of layers, but not used to seeing them this obvious. Granted, it is rare I print a Benchy 
I believe your suggestion of smoothing them is what I’m looking for. Since I printed this directly from the SD card, I probably got stock/basic settings. Is there a way to get this into Bambu Studio to try changing the quality? I haven’t used that just yet but figured the SD only has the gcode for this model and not the STL.
I’m glad this looks as expected though for a first print
By the way, what size nozzle does this A1 printer come with pre-installed?
Of course the more “flat” the angle is the more staggered the layers will be at a given layer height.
Nozzle is 0.4mm.
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If you don’t want to go through the trouble of downloading a benchy, you can just right click your build plate in Bambu Studio and add one.
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We were talking about the same section.
A 0.4mm nozzle is installed by default, the most common size for all FDM printers unless you have a massive build plate area far in excess of what you have.
The reason these maybe more visible is these two reasons.
- It’s been a long time since you last saw one.
- There are clearer be because the quality is better. Nothing is mushed together which occurred on earlier printers.
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I think the default benchy embedded in the printers or the sdcard is even sliced with 0.24mm layers.
The download posted by @Kilrah contains exactly the settings used for the ready to print benchy. If you load that, you can compare against the default settings.