Skip To Content

We just fixed downloads: every STL now comes straight from fast, reliable storage, saved under its own name, we're making 10,000 STL files and dozens of new tools, so things might break. We'll fix them ASAP.

A stylized kinesin motor protein walking along a hollow microtubule track, one of the most famous machines inside living cells. The microtubule is a long tube of neat panelled tubulin blocks, open at the end to show its hollow core, while the kinesin rises from two small feet on a coiled stalk topped by a round cargo sphere. The simple geometric sculpt makes the idea easy to grasp at a glance. A memorable teaching model for cell biology classes and a fun desk piece for science lovers.

Free StarForge 3D Viewer

4,623+ 3D Print STL Files

4623 results

Choose Your Membership

StarForge membership tiers and what each one includes each month
Included each month

Starter

Merchant

Merchant+

AI

AI Max

Credits451504501,5004,000
STL Downloadsup to45up to150up to450up to1,500up to4,000
3D ToolsUnlimitedUnlimitedUnlimitedUnlimitedUnlimited
AI 3D Modelsup to4up to15up to45up to150up to400
Sell 3D PrintsIncludedIncludedIncludedIncludedIncluded
Sign up