Is this 3D model free to download?

Yes, Adjustable Dumbbell Spinlock Collar / Star Lock Nut (Replacement) 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 thebyren, 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.

Adjustable Dumbbell Spinlock Collar / Star Lock Nut (Replacement) 3D printable model by thebyren

Adjustable Dumbbell Spinlock Collar / Star Lock Nut (Replacement) photo 1

Adjustable Dumbbell Spinlock Collar / Star Lock Nut (Replacement)

Source: Thingiverse by thebyren

The Adjustable Dumbbell Spinlock Collar / Star Lock Nut (Replacement) is a free printable 3D model from Thingiverse by thebyren. Summary Commercial spinlock collars are usually made of "unbreakable" high-density plastics—highly impact-resistant yet rigid. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

30 saves Source: Thingiverse Updated 2026-10-18 Print time: 45m License: CC-BY · commercial OK Category: Home & Organization

Tags: Adjustable, Dumbbell, Spinlock, Collar, /, Star, Lock, Nut, (Replacement)

About this model

Summary Commercial spinlock collars are usually made of "unbreakable" high-density plastics—highly impact-resistant yet rigid. However, they are incredibly easy to lose, or you simply never have enough of them when staging multiple weight configurations. This model provides a reliable, high-strength functional replacement or spare for adjustable dumbbells and barbells. Designed with deep ergonomic tabs, it allows you to quickly print as many backups as you need so your training flow never stops. Print Status & Time * Printer: Elegoo Neptune 4 Pro * Filament: PETG+ sunlu * Print Time: ~45 minutes (tested with the recommended high-strength settings below). Recommended Print Settings To mimic the toughness of the original parts and handle constant mechanical stress, use these parameters: * La…

Frequently asked questions

Is this 3D model free to download?: Yes. Adjustable Dumbbell Spinlock Collar / Star Lock Nut (Replacement) 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 thebyren.
Who made this model?: Designed by thebyren, 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.