I have a Bambu 3D printer running exclusively on PLA or PC and I’m hitting a wall with print accuracy. And getting manifold issues. Dimensions are drifting just enough to make mechanical parts unreliable, and no amount of basic tuning has fixed it. I’m looking for someone who really knows the Bambu ecosystem—firmware quirks, Bambu Studio, built-in calibration routines, even the little slicer flags that aren’t obvious. Your mission is to guide me to repeatable, dialed-in accuracy. That could mean creating a custom Bambu Studio profile for PLA, walking me through advanced calibration tests, or identifying subtle mechanical checkpoints I may have missed. Remote collaboration is fine; I can share photos, live video, and print logs as needed. Acceptance criteria • Dimensional variance held to ±0.05 mm on a standard 20 mm calibration cube (measured with digital calipers). • Updated slicer profile and a clear, step-by-step procedure that I can reuse for future rolls of PLA. • A short summary explaining why each change works, so I can troubleshoot confidently on my own next time. If this sounds straightforward to you, let’s get started—I’m ready to print test pieces right away.