Is this 3D model free to download?

Yes, Straight Pole + Curved Hole Illusion is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by MyMiniFactory. Use the "Download from MyMiniFactory" 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 MakeAnything, published on MyMiniFactory. 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.

Straight Pole + Curved Hole Illusion 3D printable model by MakeAnything

Straight Pole + Curved Hole Illusion photo 1

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Straight Pole + Curved Hole Illusion

Source: MyMiniFactory by MakeAnything

The Straight Pole + Curved Hole Illusion is a free printable 3D model from MyMiniFactory by MakeAnything. This fascinating desk toy highlights the strange property of a straight pole fitting perfectly through a curved hole when spun around a central axis. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MyMiniFactory

2,350 saves Source: MyMiniFactory Updated 2026-10-15

Tags: mechanical, toy, illusion

About this model

This fascinating desk toy highlights the strange property of a straight pole fitting perfectly through a curved hole when spun around a central axis. It's a simple, no frills illusion, but it sure is satisfying to watch! This download includes all parts necessary to assemble this model. Some glue required for assembly. 03/20/18 UPDATE : Added an 'upright' version of the pole model. I've found that printing this way with minimal supports at the very bottom produces cleaner results

Frequently asked questions

Is this 3D model free to download?: Yes. Straight Pole + Curved Hole Illusion is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link above to open the original listing.
Where is the STL hosted?: The download is hosted by MyMiniFactory, not by Thinger. We link you directly to the original listing by MakeAnything.
Who made this model?: Designed by MakeAnything, published on MyMiniFactory. 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.