Please help. I’ve been trying to fix this forever and have gone through several kilograms of ASA troubleshooting. looking at the pictures you can see that a few mm coming from the corners the layers aren’t looking very good. I for the life of me cannot figure out what is causing it.
Things I’ve tried:
flow calibrated
pressure advance calibrated
Tested printing at 240c to 260c
Tried all bambu and Orca ASA default profiles (adjusted heatbed temp)
slowed acceleration and print speeds
increased layer time.
Tried fan speeds incrementally from profile defaults to Zero
Tried almost every type of infill type 10-35%
increased and decreased solid infill
2,3,4 walls
layer heights, .16,.2,.24
moved seams
classic and arachne walls
increased wall overlap
I’ve even changed the model, removing the hole and changing the champer size
I’ve printed dozens of these trying to figure it out and tried every setting above and in between. Tested originally in PLA and PLA+ with no issue.
It’s hard to nail down what’s going on here. I may not be able to immediately help you with your settings, but I can help you with your approach.
The TL;DR version: I think your calibration may be off, but without additional diagnostic steps, we’re grasping for answers in the dark.
Troubleshooting will be much easier—and a lot less costly and time-consuming—if you cut your model into pieces, starting with large chunks and then printing test pieces. Gradually reduce those chunks into smaller pieces until you isolate the smallest part of your model that reproduces the artifacts you’re unhappy with. This method allows you to print multiple experimental units on the same build plate, saving about 5 minutes per unit. For example, if your current model takes up the whole plate but the issue is isolated to a single section, you can cut out that section, duplicate it, and experiment on multiple versions at once. This can reduce diagnostic times from hours or days to just minutes.
Please post clearer pictures and annotate more specifically what you don’t like about the model. You mention the corners, but I see two bad areas, and the pictures are too blurry to make out the details. It looks like you took a photo and then scaled the image. Instead, I suggest moving the camera back and using digital zoom to maintain image clarity. Also, consider using offset lighting, such as a desk lamp or flashlight, to provide more even illumination.
Additionally, include something recognizable for scale. A ruler is best, but a coin will also work. This will help others better understand what they are looking at.
Here’s an example: What am I looking at here? It’s hard to say. Is this a good print or a bad print? (Click on image to reveal)
Now, let me add something to the frame that provides scale and use the camera’s zoom function. Voilà! Now, I have something that my eyes and brain can more readily interpret.
If I zoom out completely, I can see the entire object in context. Using a contrasting backdrop—such as a known build plate—further clarifies the objective.
