Is this 3D model free to download?

Yes, 50mm lens holder 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 jbeale, 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.

50mm lens holder 3D printable model by jbeale

50mm lens holder

Source: Thingiverse by jbeale

The 50mm lens holder is a free printable 3D model from Thingiverse by jbeale. This is a lens holder for a molded lens that is 50 mm in diameter and has an edge flange. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

146 saves Source: Thingiverse Updated 2026-10-06 License: CC-BY-SA · commercial OK 2 makes Category: Education & Science

Tags: 50mm, bracket, education, holder, lens, lens holder, optics, science

About this model

This is a lens holder for a molded lens that is 50 mm in diameter and has an edge flange. A semicircular slot 3 mm wide holds the edge of the lens. Adjust the SCAD file for the lens and mounting hole dimensions you need . Lens holders are useful for demos and optical experiments. The specific lens shown in the photos is "50mm Optical Glass Lens Collimator Plano-Convex for Led Projector" from eBay. On my printer, the slot ended up at 2.7 mm wide, about 0.3 mm too narrow for the 3.0 mm lens edge, so I had to scrape it out a bit with a knife point. Unless your printer is more accurate than mine, you might want to enlarge the slot a bit in the SCAD. You can print two of them and stack one upside down on top, to fully capture the lens. For a different 50mm lens holder that fits on a yardstick, …

Frequently asked questions

Is this 3D model free to download?: Yes. 50mm lens holder 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 jbeale.
Who made this model?: Designed by jbeale, 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.