tweak the fit of the parts

cases/attitude-no-battery/README.md

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+# Attitude no battery
+
+Generated by the Feather Case Wizard.
+
+- Top profile: `generic`
+- FeatherWings: 1
+- Battery compartment: no
+- 1/4-20 insert: yes
+- Approximate exterior: 60.8 × 41.7 × 33.2 mm
+- Formats: 3mf
+- Parts: `body`, `lid`, `lid_base`, `lid_accent`
+- Custom cutouts: 0
+
+Run `ruby build.rb` in this directory to regenerate exports and previews.
+OpenSCAD, Blender, and Python 3 must be installed. Set `OPENSCAD`,
+`BLENDER`, or `PYTHON` to override their executable paths.
+
+To open the saved Customizer values manually:
+
+```bash
+openscad -p parameters.json -P attitude-no-battery source/feather_case.scad
+```
+
+The 3MF files contain portable geometry only. Choose printer, filament,
+plate, and slicing settings in Bambu Studio.
+
+For a two-color lid, open `exports/3mf/lid_multicolor.3mf` as one
+multipart object. Assign “Lid base — Filament 1” and “Accent inlays —
+Filament 2” to the desired filaments. `lid.3mf` is the complete
+single-color fallback; `lid_base.3mf` and `lid_accent.3mf` are also
+provided separately.