Is this 3D model free to download?

Yes, Knee Defender 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 Kirby Downey, 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.

Knee Defender 3D printable model by Kirby Downey

Knee Defender

Source: MyMiniFactory by Kirby Downey

The Knee Defender is a free printable 3D model from MyMiniFactory by Kirby Downey. This clever little device is a simple but powerful tool in the combat against inconsiderate people reclining thier seat, on an aeroplane, so far that you are breathing on their. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MyMiniFactory

43 saves Source: MyMiniFactory Updated 2026-10-10 License: DOWNLOAD-SHARE-MAINTAIN-LICENSE-CREDIT-NOREMIX-NONCOMMERCIAL-EXC · non-commercial

Tags: plane, store, 3dprinted, Myminifactory.com, 3dprint, knee, defender, tall, aerospace, airline, areoplane, protector, controversal, kneedefender

About this model

This clever little device is a simple but powerful tool in the combat against inconsiderate people reclining thier seat, on an aeroplane, so far that you are breathing on their bald spot. invented by Ira Goldman in 2003, the defender only got real attention when a fight broke out on a flight which had the plane diverted. The contriversial product is attached to the back of an airline seat, preventing the person in front of you from reclining. As seats on flights continue to shrink, the battle for space in the sky is becoming more acrimonious by the day.

Frequently asked questions

Is this 3D model free to download?: Yes. Knee Defender 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 Kirby Downey.
Who made this model?: Designed by Kirby Downey, 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.