step.parts

step.parts 3D, CAD & Motion Website

step.parts catalogs open-source STEP components for CAD projects, with filters and model files available in the catalog.

Visit step.parts

About step.parts

step.parts is a web catalog of STEP (.step) 3D model files for computer-aided design (CAD) projects. The homepage states that it contains more than 16,000 parts. The visible listings include electronics boards and modules, servo and DC motors, actuators, linear rails, bearings, gears, pulleys, aluminum extrusions, enclosures, fans, and other mechanical items, and users can show a filter panel to narrow the list.

The catalog is a reference for finding component models to place in a design. The site does not describe how the models are licensed or reused, and the directory record does not list the site itself as open source, so users should check the terms for each part before reusing it.

Key features

Catalog of STEP (.step) 3D model files for CAD projects
Filter panel for narrowing the parts list
Electronics models from makers such as Arduino, Adafruit, and Raspberry Pi
Motors and actuators from manufacturers including Feetech, CubeMars, and Unitree
Mechanical parts such as bearings, gears, pulleys, linear rails, and lead screws
Enclosures, fans, terminal blocks, and aluminum extrusions in the listing

Best for: Mechanical and electronics designers who need STEP models of common off-the-shelf components to place in CAD assemblies.

Good for

The homepage lists a large catalog of more than 16,000 parts.
Parts are provided as STEP files, a format used across many CAD programs.
Listings cover both electronic modules and mechanical hardware.

Watch out for

Pricing is unknown from the available information.
The directory record does not list the site as open source, and licensing for individual parts is not stated.
The homepage excerpt does not describe how accurate or detailed the models are.