Archimedean Chords Top Surface pattern Line Inconsistent

Hi, can someone help me? I’m using the Archimedean Chords Top Surface pattern (I need it for its design), but this is the output I always get — the curved lines are inconsistent in Bambu Studio. I’m using a 0.4mm nozzle on the A1 with eSun PLA+. I’ve attached a screenshot and my .3mf file.


MySettings.3mf (16.6 KB)

Edit: I observed that it prints the center first, followed by the outer layer, and then returns to the center.

File contains no geometry and pic isn’t super clear

Is that whole “flower” supposed to be a single top surface on one layer, or is it curved? If its all one layer, you may need to tune your flow RATE. The geometry forces it to retract and move to the “petals” during the spiral, so if you’re flowing too much and shoveling excess around, when it retracts and starts a new path its gonna look non uniform

Sorry, I uploaded the wrong file. I attached the new file.
InitialsSample.3mf (41.5 KB)

Sorry for the low-quality photo. Yes, it is a flat layer, not curved. Thanks — I’ll try adjusting the flow rate. But I think it’s more about the printing sequence. Instead of starting at the center and working outward toward the edges, the printer finishes a quarter of the center, then moves to the edge to continue the print. I’m still new to 3D printing, so I’m not sure if there are settings that control the movement sequence.

I saw some GitHub issues in PrusaSlicer with the same problem as me. So, is there no solution in Bambu Studio?