Keychain "Don’t worry, be happy"
Keychain “Don’t Worry, Be Happy.” A stylish, three-dimensional keychain featuring a handwritten motto to remind you every day to stay calm and smile. Features: Dimensions: 55.00 × 50 × 4.00 mm Shape: Irregular outline precisely following…
Files are hosted by the publisher — 3DX does not serve them directly. The link opens the model page in a new tab.
About this model
Keychain “Don’t Worry, Be Happy.”
A stylish, three-dimensional keychain featuring a handwritten motto to remind you every day to stay calm and smile.
Features:
- Dimensions: 55.00 × 50 × 4.00 mm
- Shape: Irregular outline precisely following the text silhouette
- Text: Embossed letters in dark blue, raised approximately 1 mm above the surface
- Attachment: Built-in hole for a steel split ring for quick fastening
- Printing: For print without an AMS system—apply the color change on layer 17
Print settings
These are the settings the model was actually printed and tested with — the profile in the 3MF is already set up this way, so you can send it straight to the printer.
- Layer height: 0.2 mm
- Nozzle: 0.4 mm
- Walls: 2
- Infill: 15 %
- Filament: ~9 g
Files
The model is free on MakerWorld and ships as a ready-to-print 3MF with the print profile inside — no slicer setup needed. Hit the download button above; the file is hosted there, not on 3DX.
Frequently asked questions
Do I need an AMS to print the two-tone lettering?
No. The article explicitly says the model is designed for printing without an AMS system. You just apply a manual filament color change at layer 17 — pause the printer at that layer, swap the filament, and resume. The raised letters are about 1 mm above the surface, so the color change creates the embossed dark blue text on a different base color.
What kind of split ring fits the keychain hole?
The model has a built-in attachment hole designed for a standard steel split ring, the same type used on most commercial keychains. A common 15–20 mm diameter split ring works well — the hole is sized to let the ring pass through easily while keeping the keychain secure. You can also use a small carabiner or a jump ring if you prefer.
Can I scale the model up or down without breaking the text?
Yes, but keep the minimum wall thickness in mind. The model is 4 mm thick with 2 walls at 0.4 mm nozzle, so scaling down below about 80% risks making the embossed letters too thin to print cleanly or the split ring hole too small for a standard ring. Scaling up is fine, though it will increase filament usage beyond the ~9 g stated for the original size.
