◆ Print only
An "I heart FILAMENT" keychain in black, white and red, for the maker with too many spools and no regrets.
Want your own version? Make it free in our i love you keychain tool. A free account gives you free downloads every week.
The souvenir "I heart" mark with FILAMENT underneath: a black plate, white letters raised on it and a red heart raised higher still. For the person whose cupboard is full of spools in every colour, and who still buys more every sale. Good for Black Friday filament sales, a maker's birthday, a 3D printing club or Secret Santa among makers.
Made with our free I love you keychain generator, not modelled by hand: we typed FILAMENT, set the width to 60 mm and the white and red rises to 0.8 mm each, and left everything else at the page's defaults (the Fun & Bold font, the keyring hole beside the I). The zip holds exactly what the tool downloads: a 3MF with the plate, the letters and the heart as separate coloured parts, and a one-piece STL. It comes out 60 by 39 mm and 4 mm thick, and prints flat with no supports.
Hang it on a new spool as the gift tag: it is the one gift a maker cannot already own. Printed in one colour it still reads, because the letters stand proud of the tag; for black, white and red, a single-nozzle printer needs two filament changes, and the print sheet in the zip says where.
Shown as a 3D render of the printed keychain with a steel split ring, not a photo.
Print it flat as exported: no supports, 0.4 mm nozzle, 0.2 mm layers.
Multi-colour printer: open the 3MF, each part already carries its colour. Single nozzle: add a filament change in the slicer's layer preview for white at 2.3 mm and red at 3.1 mm above the bed.
Let the bed cool before you lift the tag off, so the thin edges stay flat.
Open the split ring with a thumbnail or a small screwdriver and wind it through the hole.
Print details
| Type | Print only |
|---|---|
| Printed parts | 1 |
| Size (W x D x H) | 60 x 39 x 4 mm |
| Print bed needed | 60 x 39 mm, 4 mm tall |
| Filament | ~6 g |
| Layer height | 0.2 mm |
| Infill | 15% |
| Supports | Not needed |
| Download | ZIP: keychain in 3 colours (3MF) + one-piece STL + print sheet + README |
| Added | 2026-10-05 |
Made with the free I love you keychain generator. Upload your own drawing and get the same kind of part built from it, in your browser.
Free download. Opens the Thingiverse listing in a new tab.
Free for personal use. Selling the printed piece itself needs a commercial licence (Pro or Founder); passing on the file is not permitted on any plan. Full terms.
New to this? Read the custom love keychain guide.
It is one of the easiest: tie it to a spool of their favourite filament and they have a present and a joke in one. It prints in under an hour, so you can make it on the day.
FILAMENT is eight letters, so we set the width to 60 mm to keep the letters readable next to the I and the heart. It still prints flat with no supports, and the colour changes are at the same heights as on the smaller tags.
Start in black, then change to white at 2.3 mm and red at 3.1 mm above the bed. Those heights are measured in the file, from its lowest point, which is where your slicer puts the bed; add each change in the layer preview where the new colour first shows. With a multi-colour printer, skip all that and open the 3MF.
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