I am new to my P1s and 3d printing in general, i’d like to understand why i get this result with some of my prints, it’s random, and hard to understand why when i printed 4 of these all together one has this strange result - your help would be appreciated. All prints are PLA btw, and no setting have been changed.
Presumably you can reproduce this artifact. Is that a correct assumption?
It’s hard to diagnose from just a picture. What would get you higher quality responses if you can show us a screengrab of the sliced model before it was sent to print. Also, what setting are you using? Standard or custom. If custom, what changes have you made.
At first glance, it looks like you’re getting some bleed-through of the underlying model’s infill structure but again, that’s a purely a guess until we can look at the model itself. Seeing it on a plate in sliced mode with partial layer exposed will tell you a lot.
Examples
Here’s an example of what you’re looking for. These are two identical models. The sole difference is that one has a different rotation. I call you attention to the default Sparse infil pattern of grid set at 45°
Try to look past the optical illusion of these two identical objects as they lay on the plate. Note that when we are in sliced view and pull the slider down, we see that the grid is exactly 45° to the grid of the build plate.
So in your example. What could be happening is that you may have wall layers that are too thin for the filament your using or model has arc interpretations in the mesh that the slicer can’t interpret.
Ways to diagnose.
If it is a wall issue, there is an easy way to find out. Simply create a repeatable print that displays what you don’t like. Then try any or all of these experiments.
- Change the rotation of the model by more than 20°.
- Go into the infill section under strength tab and change the infill grid more than 20°.
- Under quality, change the number of outer walls to a high number greater than 5.
If any of these impacts the pattern you are seeing then you’ve nailed your culprit and the remedies are some but not all of the following. I’m sure members here will have more ideas.
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Change the infill pattern to something else other than grid such as honeycomb.
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Under Quality change order of inner wall/outer wall from the default of inner/outer to outer/inner, this will ensure that walls are build first. NOTE: Advanced check box must be on.
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Change the maximum length of the infill anchor to something other than what it is now which is defaults to 20mm. Maybe try extreme numbers like 0 and 100 just to see the affect.
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Change the angle of the infill.
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As discussed above, increase the wall count.
And last but not least. Since you’re a newbie, this forum is a community and NOT Bambu tech support. Bambu usually does not read these forums. As a community, you get out what you put in. So please report back if you found a solution so that others may benefit.
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