
Dust Caps and Covers: 3D Models to Print
This collection gathers 3D models that fall under the broad heading of caps and dust covers: port plugs, bottle closures, valve caps, holders and decorative pieces. It is useful when you need a small part that protects an opening or closes a container, and 3D printing makes it easy to match an unusual diameter or thread. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
Le texte de cette collection est rédigé en anglais ; la recherche, elle, fonctionne dans toutes les langues.
Comment cette collection est composée
Polyzon compose cette collection à partir des résultats de recherche des plateformes connectées. Les doublons et les modèles sans aperçu sont retirés, les correspondances faibles sont placées à la fin, et le reste suit l’ordre de la recherche. Les modèles appartiennent à leurs auteurs : consultez les conditions sur la page de chaque modèle.
Règles de sélection : la rédaction de Polyzon · Texte mis à jour le 14/10/2026
Par où commencer
Tous les modèles de cette collection

3D printable bottle and screw cap

Cap for Silicon Cartridge

Cap Hanger

Cap for cutters

Ethernet Port Dust Cap/Cover - No Supports

Pop-On Cap Propeller – Snap & Spin with Style!

Stormtrooper Valve Cap

E-Stop Key Cap

Single-Hand Bottle Cap Shooter
Bottle Cap Boy v2

USB-C Dust Cover/Plug/Cap

Shoot-Cap Apri Bottiglia

Tire Valve Stem Cap

Tire valve cap (Schrader)

Future Cap – A 3D Printed Tribute

Mini Container with PET Bottle Cap Size

Bag Clip with Screw Cap for 1kg Coffee Beans Bag

Bracket caps (A1)

Cap that Hole

Bottle Cap/Marker V2 - Protect your Drink

Poopin Doberman Toothpaste Cap

Bag clip with screw cap

Tube Nuts - Silicone Tube Caps

Universal bottle cap tripod

PET Bottle Watering Spout Cap (Narrow and Wide)

Bag Clip with Screw Cap

Cap Holder (5 Caps/Hats)

Cute Knitted Super Mario Cap

Wood screw cap

Double Cap/Hat Hook

Hole cover cap - Customizable
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Cap
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cap
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Cap
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Cap
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Cap
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cap
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Cap
Cap
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cap
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Cap
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cap
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cap
«Dust Caps and Covers: 3D Models to Print»
The models differ mainly in what they close. Port and connector covers are usually thin shells that press or snap onto a plug, while bottle and cartridge caps rely on a thread or a friction fit. Valve caps are small and often knurled for grip, and a separate group uses the cap shape as a holder, hanger or organizer rather than as a closure. Decorative caps follow the same geometry but are shaped as figures or props.
Before printing, look at the dimensions the author lists: inner and outer diameter, thread pitch if there is one, and overall height. Check how many parts the model has and whether it is meant to be glued or snapped together, and read the recommended material and layer height, since a thin wall behaves differently in a stiff filament than in a flexible one. Photos of real prints on the model page show how the surface and the fit turned out.
If the results are too narrow, try related terms. Dust cover, plug, port protector and blanking cap describe similar parts; closure, lid, stopper and screw top cover the container side; valve stem cap, Schrader and Presta narrow the tire group. Adding the diameter, the device name or the thread standard to the query usually reduces the list faster than scrolling.
Questions fréquentes
How do I find a cap that fits a specific opening?
Which material works for a small cap?
Do these models need supports?
Can I adjust the size of a cap model?
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