Peças para impressoras

NEMA 8 Stepper Motor 3D Models and STL Parts

This collection gathers 3D models designed around NEMA 8 stepper motors: mounting brackets, extruder adapters, reduction gearboxes and shaft couplers. It is useful when you are building a small motion axis and need STL parts that match a compact motor frame. Most items are small enough to print on a desktop 3D printer in a single session. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

O texto desta coleção está em inglês; a busca funciona em qualquer idioma.

Uma coleção do Polyzon · 46 modelos de 4 sites

Como esta coleção é montada

O Polyzon monta esta coleção a partir dos resultados de busca dos sites conectados. Repetições e modelos sem prévia são removidos, correspondências fracas vão para o final e o restante segue a ordem da busca. Os modelos pertencem aos seus autores — confira os termos na página de cada modelo.

Regras de seleção: equipe editorial do Polyzon · Texto atualizado em 14/10/2026

Ver a coleção Mostrar todos: 2131 modelos →
Coleção

Comece por aqui

Todos os modelos desta coleção

Mostrar todos: 2131 modelos
Sobre a categoria

«NEMA 8 Stepper Motor 3D Models and STL Parts»

The models fall into a few practical groups. Mounts and stands hold the motor against a panel, rail or frame, while extruder adapters connect it to a filament drive or a remote direct extruder layout. Reduction stages appear as planetary, cycloidal or worm gear sets that trade motor speed for torque, and couplers link the motor shaft to a lead screw or another shaft of a different diameter.

Before printing, read the author's model page for the motor frame size, shaft diameter and bolt spacing, since these decide whether the part will fit your setup. Check how many separate parts the design contains and how they are meant to be joined, whether the geometry needs supports, and which material and print settings the author lists. Photos of finished prints usually show the weak points and the clearances better than renders.

To widen the search, try related terms such as stepper mount, motor bracket, shaft coupler, planetary gearbox or extruder adapter, and add the frame size you are working with. If you are designing your own part, look for reference models of the motor face plate and bolt pattern, then adapt them in CAD. Combining a mount with a matching coupler or gear stage often gives a more complete assembly than searching for a single part.

Some entries belong to larger projects rather than standalone parts: small CNC frames, panel cutouts and instrument builds that use a stepper as the drive. Those pages are worth reading for the way the motor is integrated, even if you only need one component from them. The same applies to gearboxes, where the reduction ratio and the output shaft shape matter more than the outer housing.

FAQ

Perguntas frequentes

What is a NEMA 8 stepper motor used for in 3D printing?
It is a compact stepper frame often used where space and weight are limited, for example in small extruder assemblies, lightweight axes or miniature motion stages. Its lower torque means it usually works together with a reduction stage or a light load.
What should I measure before printing a NEMA 8 mount?
Check the motor face dimensions, the bolt hole spacing, the shaft diameter and how far the shaft protrudes. Also note the thickness of the panel or frame the mount will be fixed to, and the screw head clearance.
Do these gearbox models need supports?
It depends on the design: gear teeth and overhanging bores often require supports or a specific print orientation. The author's page usually states the orientation and whether supports are needed, so read it before slicing.
How do I find a coupler for a different shaft size?
Search for shaft coupler together with both diameters, for example the motor shaft size and the driven shaft size. If nothing matches exactly, a parametric coupler model can be adjusted in CAD to the two diameters you need.
Relacionados
Ferramentas e equipamentos

NEMA 17 3D Models: STL Mounts and Gearboxes

15205 modelos
Miniaturas e wargame

NEMA 11 Stepper Motor Mounts and Gearbox STL Files

1468 modelos
CNC e fresadoras

NEMA 23 Gearbox 3D Models and STL Files

3083 modelos
CNC e fresadoras

3D Models for NEMA 17 Rotary Mechanisms

27079 modelos
Peças para impressoras

Resetter 3D Models and STL Parts for Printing

8965 modelos
Peças para impressoras

Dust Control 3D Models and STL Files

49136 modelos

Todas as categorias de modelos 3D

O catálogo completo de temas — de casa e utilidades a CNC, com busca em todos os sites conectados.

Abrir o catálogo de categorias