Is this 3D model free to download?

Yes, Class 15 bobbin 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 jmhossler, 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.

Class 15 bobbin 3D printable model by jmhossler

Class 15 bobbin

Source: Thingiverse by jmhossler

The Class 15 bobbin is a free printable 3D model from Thingiverse by jmhossler. I measured a class 15 bobbin, and created a model based on that in freecad. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

37 saves Source: Thingiverse Updated 2026-10-10 License: CC-BY · commercial OK 1 makes Category: Decor & Art

Tags: Class, 15, bobbin

About this model

I measured a class 15 bobbin, and created a model based on that in freecad. I measured using a regular ruler, so the precision is not great but it has been tested and was functional in a sewing machine that required class 15 bobbin. EDIT 1: the v3 model is printed in two pieces that are easily glued together (I used super glue). This eliminates the need for using scaffolding, which results in a clean print that is better for bobbins. I'm still learning cad, but I want to make some adjustments so that super glue is not needed. I also need to stress test this, but my girlfriend sews as a hobby so it isn't in use constantly. If you have any ideas for feedback, let me know!

Frequently asked questions

Is this 3D model free to download?: Yes. Class 15 bobbin 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 jmhossler.
Who made this model?: Designed by jmhossler, 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.