Is this 3D model free to download?

Yes, Penrose Triangle Illusion is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by chylld, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Penrose Triangle Illusion

Source: Thingiverse by chylld

The Penrose Triangle Illusion is a free printable 3D model from Thingiverse by chylld. !! New version penrose5.stl with a couple of wayward vertices fixed !! This is a 3D-printable version of the Penrose Triangle illusion, based solely on the 1934 design painted by. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

2,861 saves Source: Thingiverse Updated 2026-10-17

Tags: Penrose, Triangle, Illusion

About this model

!! New version penrose5.stl with a couple of wayward vertices fixed !! This is a 3D-printable version of the Penrose Triangle illusion, based solely on the 1934 design painted by Swedish artist Oscar ReutersvÃ¤rd. The design also appeared on Swedish postage stamps in the early 1980s. I created this 3D design entirely from scratch using the process outlined in the "Instructions" section below. This work is based solely on Oscar ReutersvÃ¤rd's design, although some elements are inspired by the Hollow-Face illusion discovered many decades (if not centuries) ago. This model contains a number of notable improvements over previous 3D representations: 1) It is parallax-corrected for a viewing distance of 40cm, i.e. it will look exactly like Oscar ReutersvÃ¤rd's design, with cubes lining up on all…

Frequently asked questions

Is this 3D model free to download?: Yes. Penrose Triangle Illusion is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link 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 chylld.
Who made this model?: Designed by chylld, 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.