LEGO-compatible STL part g21

Technic, Gear Expert Builder 21 Tooth with Axle Hole

Find and print the STL model for brick part g21. This catalog entry is identified by its part number so you can confirm the component before adding it to a larger 3D-print project.

Part numberg21

Searchable catalog identifier

Model formatSTL

Ready for slicing and scaling

CategoryBrick

building-brick part

Mesh detail32,524

triangles in the catalog model

Print part g21

Preview, scale, and download this model from the block library.

Open the ScaleMySet library and search for g21 to inspect the 3D preview, choose a target scale, and download the STL with an eligible account. You can also include the part in a custom pack so quantities and colors stay organized in one ZIP.

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