Pi(e) Unit Circle 3D printable model by Add_Em

Pi(e) Unit Circle

Source: Thingiverse by Add_Em

The Pi(e) Unit Circle is a free printable 3D model from Thingiverse by Add_Em. This is a pie made up of 3 parts: a base with the Unit Circle, the filling that spins with a 1-radian opening, and the crust with 100 digits of pie, that screws onto the base to. You can download the STL file from the original listing below and print it at home.

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30 saves Source: Thingiverse Updated 2026-07-14

Tags: Pi(e), Unit, Circle

About this model

This is a pie made up of 3 parts: a base with the Unit Circle, the filling that spins with a 1-radian opening, and the crust with 100 digits of pie, that screws onto the base to keep the filling in place. The crust and filling are textured but have smooth options available. I only printed the crust with supports, although you may want supports on the threads of the base. All models fit on an Ender 3 and should fit on most standard-sized printers. Everything was made in Fusion 360 except for the unit circle values and radians, which were added using Tinkercad. Happy Pi Day!

Frequently asked questions

Is this 3D model free to download?
Yes. Pi(e) Unit Circle is free to download from Thingiverse. Click the "Download free STL" button above to open the original listing.
Where is the STL hosted?
The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by Add_Em.
Who made this model?
Designed by Add_Em, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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