earthtojake

earthtojake / step.parts

Public

12,000+ open source STEP parts for your next CAD project

www.step.parts agent agent-skills cad electrical-engineering hardware
45
4
100% credibility
Found May 14, 2026 at 61 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

step.parts is a searchable web directory of over 12,000 open-source STEP files for mechanical CAD components like fasteners, bearings, and robotics parts.

How It Works

1
🔍 Find step.parts

While planning a robot or gadget, you search online for free ready-made CAD parts and discover step.parts.

2
🏠 Visit the directory

You land on a simple website showing thousands of colorful part previews like screws, nuts, and motors.

3
🕵️ Search for parts

You type something like 'M3 screw' and instantly see matching parts with spinning 3D previews and details.

4
👆 Explore a part

Click any part to see a big interactive 3D view you can rotate, plus specs like size and material.

5
📥 Download your picks

Hit download on one or many—the files save right to your computer, perfect for your design.

🚀 Assemble your project

Drop the parts into your CAD software and watch your robot or prototype come together flawlessly.

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Star Growth

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AI-Generated Review

What is step.parts?

step.parts is a Next.js directory of 12,000+ open-source STEP parts for CAD projects, covering fasteners, bearings, extrusions, electronics modules, and robotics hardware. Users search, filter by category, family, standards, or tags like "M3 screw," view interactive 3D GLB previews and PNG thumbnails, then download canonical STEP files instantly. It includes a public API at api.step.parts/v1 for paginated queries, single-part lookups, and counted downloads, plus OpenAPI docs and a compact index.

Why is it gaining traction?

Unlike scattered GitHub repos or paid libraries, it offers one-stop faceted search with orbit controls on previews—no CAD app needed—and agent-friendly endpoints like /llms.txt for LLMs. Bulk selection for downloads and checksum-verified STEP files make prototyping faster, while the add-part CLI streamlines contributions without direct main pushes.

Who should use this?

CAD designers assembling robot prototypes or enclosures needing quick M3 screws, ISO 4762 cap screws, or Raspberry Pi mounts. Robotics builders sourcing bearings/gears/motors, or automation scripters querying the API for "12,000 steps" in threaded parts without manual hunts.

Verdict

Grab it for CAD workflows—API and previews deliver immediate value despite 45 stars and 1.0% credibility score signaling early maturity. Docs shine, but watch for more parts and tests before production reliance.

(198 words)

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