Is this 3D model free to download?

Yes, Round, Square & Rectangular Tube End Caps – Free STL Set + Custom Size Configurator 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 Rapid3d4service, 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.

Round, Square & Rectangular Tube End Caps – Free STL Set + Custom Size Configurator 3D printable model by Rapid3d4service

Round, Square & Rectangular Tube End Caps – Free STL Set + Custom Size Configurator

Source: Thingiverse by Rapid3d4service

The Round, Square & Rectangular Tube End Caps – Free STL Set + Custom Size Configurator is a free printable 3D model from Thingiverse by Rapid3d4service. This free STL set contains three simple tube end caps: • Round tube cap • Square tube cap • Rectangular tube cap They are useful for closing open furniture legs, steel profiles. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

73 saves Source: Thingiverse Updated 2026-10-08 License: CC-BY-SA · commercial OK Category: Tools & Workshop

Tags: MakersToolsChallenge

About this model

This free STL set contains three simple tube end caps: • Round tube cap • Square tube cap • Rectangular tube cap They are useful for closing open furniture legs, steel profiles, workshop frames, shelves, gates and other hollow tubes. The insertion section sits inside the tube while the wider flange covers the sharp edge. The included models are ready to slice and 3D print. However, tube dimensions are rarely identical. If these STL files do not fit your project, you can create each cap online using your own measurements. Configure your custom tube cap: Round tube cap: Square tube cap: Rectangular tube cap: Enter the required dimensions, check the 3D preview and generate a custom STL made for your tube. No CAD modelling is required. For the best fit, measure the inside dimensions of the tub…

Frequently asked questions

Is this 3D model free to download?: Yes. Round, Square & Rectangular Tube End Caps – Free STL Set + Custom Size Configurator 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 Rapid3d4service.
Who made this model?: Designed by Rapid3d4service, 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.