Is this 3D model free to download?

Yes, Impossible Nut - Print in Place is free to download from MakerWorld. Open it in the free Thinger app, or use the "Download from MakerWorld" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by MakerWorld. Use the "Download from MakerWorld" 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 NinjaDuck Prints, published on MakerWorld. 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.

Impossible Nut - Print in Place 3D printable model by NinjaDuck Prints

Impossible Nut - Print in Place

Source: MakerWorld by NinjaDuck Prints

The Impossible Nut - Print in Place is a free printable 3D model from MakerWorld by NinjaDuck Prints. This is a true print-in-place impossible nut and bolt. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MakerWorld

153 saves Source: MakerWorld Updated 2026-10-12 Print time: 51m Filament: 13 g License: CC-BY-NC-SA · non-commercial ★ 4.8 (30) 153 makes Category: Toys & Games

Tags: print in place, pip, impossible, nut, bolt, screw, brainteaser, fidget, toy, puzzle

About this model

This is a true print-in-place impossible nut and bolt. No cheating by threading a nut on during the print of a bolt, this is all in one print! WarningDo not press auto-arrange in your slicer otherwise this print will not work. The part is separated into 2 different objects to make it easier for AMS or other multi-colour printers. If you print directly from the Bambu Handy phone app and increase the number of copies, the app will auto-arrange the parts. Slicing0.16mm Layer Height15% Infill or 100% if you want a heavier screwNo supports

Frequently asked questions

Is this 3D model free to download?: Yes. Impossible Nut - Print in Place is free to download from MakerWorld. Open it in the free Thinger app, or use the "Download from MakerWorld" link above to open the original listing.
Where is the STL hosted?: The download is hosted by MakerWorld, not by Thinger. We link you directly to the original listing by NinjaDuck Prints.
Who made this model?: Designed by NinjaDuck Prints, published on MakerWorld. 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.