
Reducer 3D Models: Gearboxes and Adapters
This collection gathers STL files for reducers and gearboxes, from cutaway industrial units to worm, spur, and bevel gear sets. You will also find adapters that reduce spool, hose, or dust-extraction connections, plus noise reducers for 3D printer setups. The range helps you compare mechanisms and practical fittings before you download. 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

独自升级-恶魔王大剑

Uniform and scalable reduction gear (1:256)
Industrial Spur Gearbox / Gear Reducer (Cutaway version)

Steinbach Sonnenkollektor Reduktion auf 32mm Schlauch

Dummy 13 Sung Jin-Woo (Solo Leveling)

Reductor electric car / gearbox
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Worm-Gear Reducer

Sunlu Spool Reductor Adapter For Humebeam Spool Desiccant Holder

Cha Hae-In: The Radiant SRank Hunter Solo Leveling
Worm reductor
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Couplus Pattern Reductor Artillery

Adapter / Reduktion für Jayo Filament Spulen; Adapter / reduction for Jayo filament coils spools

Sung Jin-woo Solo Leveling Büste

Multiplier / reductor gearbox
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power suppressor FX airguns reductor noise designed to gain power 1/2 UNF fix

Staubabsaugung Reduktion Kreissäge > DN100

Solo Leveling bookmark

40mm to 30mm Fan reductor
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Semi-Formal Pocket Gear Train

Reductor bobina para ams

Knight Killer dagger from Solo Leveling anime

Worm-Gear Reducer
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Planetary Gearbox Fidget Toy

Adaptador/Redutor para Condulete 2 polegadas, saída para 1 polegada

DIORAMA_SOLO LEVELING

Sim wind flow reductor
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Compact planetary gearbox

Motor reductor DC 12V

3D Surface Keychains - Solo Leveling Shadows
Redutor de Velocidade
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Parametric Planetary Gearbox - Openscad

Shower pressure reducer | Redutor de pressão para chuveiro elétrico

Knight Killer Dagger from Solo Leveling
SR20 ENGINE
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Planetary Gearbox 4:1 Stackable

BASE - MOTOR REDUCTOR

Robots: Solo leveling - Tank Bot

Gears for turntable
Nema 17 Stepper 5:1 Planetary Gearbox with 5mm shaft for GT2 pulley

Reduction KG100 to airtube 100mm / Reduktion KG auf Lüftungsrohr

reduktor vailant
Speed Reducer

Adaptador reductor Makita NB2012 a aspiradora Bosch GAS 12-25 PL

Redukce kompresoru

red
«Reducer 3D Models: Gearboxes and Adapters»
Reducer models in the collection range from simple single-stage gear pairs to multi-stage gearboxes and cutaway housings that show the internal layout. Worm reducers use a screw-like gear for high reduction in a compact shape, while spur and bevel sets use different tooth arrangements for direction changes or parallel shafts. Adapters and reductions are usually simpler parts that change a diameter or thread, so they print with different priorities than a full gearbox.
When choosing a model, check the stated size and scale, the number of parts, and whether the author expects supports or assembly. Look at the material and settings the author lists, and review photos of real prints to judge surface finish and fit. For moving parts, clearances and tolerances matter more than visual detail, so test the fit on a small section before printing the whole assembly.
If the first results are too broad, try synonyms such as gear reducer, speed reducer, gearbox, or reduction gear, and add terms like worm, spur, bevel, or planetary. Related searches include motor mount, shaft adapter, spool adapter, hose reducer, and noise reducer. You can also combine a mechanism name with a use case, such as 3D printer, RC vehicle, or workshop dust extraction, to narrow the list.
Questions fréquentes
What is a reductor in 3D printing?
Which gear types appear in printable reducers?
What should I check before printing a gearbox model?
How do I find a reducer for a specific printer or tool?
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