Yes, I am referring to isolating one part on the plate. Then using the (c)ut tool to split the model into sections thus isolating the part of the model that is causing you grief. Here’s how that might work. This example uses a Torus and a Cube primitive combined into an Assembly.
I’m using Orca 2.1 in this example which looks a little different than Bambu Studio but it works the same.
Step 1 Select the a “single” part and use the cut tool, Shortcut 'c".
Step 2 Select the Arrow handles, they will change color and activate when you over over them. A middle solid ball indicates changing height. This can sometimes be tricky but patient.
You’ll want to uncheck the part you want to discard, in this example it’s called the lower part in red. Also uncheck the “Place cut” box as if you leave that on it will flip the part so that side is in contact with the plate.
Repeat this process but use the X vector arrow. Note in this case I flip which part I want and this time it turned out to be the lower part in pink. And of course, you execute the cut by clicking on Perform Cut.
Just remember that CTRL-Z works here to undo any step if you make a mistake. Multiple CTRL-Z will back step to the beging.
When you’re done, you should have isolated that section of the model that cause problems.
Just remember to make sure that during your cut, you experiment with printing the model during each cut. This will help understand if the Slicer is being confused by render error during the slicing process.
Actually, that’s a common misconception. Mathematical artifacts are rendering errors caused by the slicer algorithm and can occur in any format during conversion to mesh, including STEP, OBJ, STL, and 3MF files. DXF doesn’t apply because it isn’t 3D.
A common mistake is selecting too high a STEP version, believing more features are better. Higher STEP versions include irrelevant data like material and manufacturing information, which can cause the slicer to fail. Always use version AP203(the lowest ver) if available to avoid this issue.
Here’s what that looks like in OnShape.
This is one of the many things that had me defect from Fusion 360 to OnShape. Fusion 360 doesn’t provide this level of export options and neither does FreeCAD.
That is unknown, which is why I suggested it as a good diagnostic step. Using multiple models, you can clone the model and simplify the second one. This isolates one variable at a time by reducing the number of facets on one model while leaving the original intact. If you’re using Windows, you can use 3D Builder directly, the same algorithm used by Orca and Bambu Studio for simplification.
Note that the Windows 3D builder utility only works on mesh formats such as STL and OBJ but you can always export the model from the slicer to an STL file if need be, or do it from inside CAD.
Final Note:
This is just one remedy path. The goal in the steps above is to isolate if the model is the problem. It’s important that I note that I am fully aware that your artifacts may not be model related but slicer settings related. I only bring up model diagnostics assuming that finding a slicer setting remedy isn’t producing a remedy just yet. So just be warned that this could wind up being a waste, but it is a valid diagnostic path that has served me well when making complex CAD models that often fail during slicing.
If any step yields a different result, modify the model to find a remedy. You don’t need to complete all steps; just verify if the model’s behavior changes. If it does, skip other troubleshooting steps and investigate conversion options. This could involve re-exporting in a different format (e.g., STL or OBJ) or using another app like FreeCAD to see if another export algorithm alters the model vertices. I do this often, and it has become second nature.
Good Luck 
