Is this 3D model free to download?

Yes, Mechanical Iris 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 sketchpunk, 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.

Mechanical Iris

Source: Thingiverse by sketchpunk

The Mechanical Iris is a free printable 3D model from Thingiverse by sketchpunk. V2 : Small improvements go a long way Finally had time to finish modeling this project. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

6,541 saves Source: Thingiverse Updated 2026-10-04

Tags: Mechanical, Iris

About this model

V2 : Small improvements go a long way Finally had time to finish modeling this project. Surprised at the amount of makes and I feel bad for you guys printing something that was incomplete. To make life easier, I updated 3 parts and added a new part to make the iris, but if you already printed the leafs, you can reuse them with the new parts. Hopefully this will give you guys a better table top piece to show off 3d printing. ORIGINAL POST V1 Saw a diy paper mechanical iris thing online and thought it was pretty cool. I couldn't find this style of iris on thingiverse, so I research different designs and found one that might be 3D printable on instructables. The trickiest part was getting the leafs printed thin enough plus have a pin on both sides. After a few leaf attempts I got it working f…

Frequently asked questions

Is this 3D model free to download?: Yes. Mechanical Iris 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 sketchpunk.
Who made this model?: Designed by sketchpunk, 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.