OpenSCAD-Generators/parametric-keyring

Parametric Keyring

Status: Digitally validated; lug strength and inlay fit require physical tests.

The editable generator is parametric-keyring.scad. FDM printing; the generator also provides intentional 2D output.

Defaults and important controls

58 × 30 × 3.2 mm rounded rectangle, reinforced right lug, and two-line raised text.

Fit and tolerance: The default inlay clearance is 0.12 mm and must be calibrated per printer.

Open the SCAD file in OpenSCAD and use Window → Customizer to change the documented parameters. Dimensions are millimetres.

OpenSCAD and export

This generator requires a recent OpenSCAD Nightly build with textmetrics enabled.

1. Open the SCAD file and select parameters in Customizer.
2. Press F6 for a full render.
3. Use File → Export → Export as STL for printable 3D output.
4. Slice with the actual printer, nozzle, material, and layer profile.

Included examples

Preset	STL	Digital render
Default raised text	Download	Preview
Heart with two lugs	Download	Preview
Separate inlay text insert	Download	Preview

Printing and fabrication

Print 3D keyrings flat on the bed.

The included STL files passed digital mesh and slicer checks. Digital validation does not establish physical fit, strength, fatigue life, or material suitability.

Known limitations

• Requires OpenSCAD Nightly with textmetrics enabled.
• Small text and ring holes need visual and physical inspection.

License

The SCAD source, STL models, renders, and documentation in this public package are licensed under CC BY-NC 4.0. See the repository LICENSE.