Is this 3D model free to download?

Yes, Screwball 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 JamieLaing, 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.

Screwball

Source: Thingiverse by JamieLaing

The Screwball is a free printable 3D model from Thingiverse by JamieLaing. Some call it Madcap. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

1,440 saves Source: Thingiverse Updated 2026-09-03

Tags: Screwball

About this model

Some call it Madcap. Others, Zany. Over here it is called Screwball, because it is two halves of a ball that screw together.

Frequently asked questions

Is this 3D model free to download?: Yes. Screwball 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 JamieLaing.
Who made this model?: Designed by JamieLaing, 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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