Visual Illusion 3D printable model by julianh72

Visual Illusion

Source: Thingiverse by julianh72

The Visual Illusion is a free printable 3D model from Thingiverse by julianh72. In response to a challenge on the Thingiverse Blog I offer this first attempt to print the visual illusion of balls rolling uphill. You can download the STL file from the original listing below and print it at home.

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93 saves Source: Thingiverse Updated 2026-05-24

Tags: Visual, Illusion

About this model

In response to a challenge on the Thingiverse Blog I offer this first attempt to print the visual illusion of balls rolling uphill. When viewed from the correct angle, this piece should give the illusion that all 4 ramps slope up to the middle platform. Viewing from any other angle gives the game away!

Frequently asked questions

Is this 3D model free to download?
Yes. Visual Illusion 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 julianh72.
Who made this model?
Designed by julianh72, 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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