Is this 3D model free to download?

Yes, Mini D-Ring Binder Mechanism Organizer Concept 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 Reavenk, 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.

Mini D-Ring Binder Mechanism Organizer Concept

Source: Thingiverse by Reavenk

The Mini D-Ring Binder Mechanism Organizer Concept is a free printable 3D model from Thingiverse by Reavenk. I'm hoping this is a first 🤞; the first FDM 3D-printed binder mechanism? Not really meant for actual use; it just needs to be the first 😅. 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 2026-11-03 License: CC-BY · commercial OK Category: Home & Organization

Tags: Binder, binder mechanism, binder ring mechanism, binders, bistable, bistable mechanism, bistable switch, Loose Leaf, proof of concept, proofing, spring, spring loaded

About this model

I'm hoping this is a first 🤞; the first FDM 3D-printed binder mechanism? Not really meant for actual use; it just needs to be the first 😅. Although not 100% 3D-printed, the spring, bistable mechanism, and rings are, so I'm still counting it! Been playing around with bistable C-shaped leaf springs (see Glasses Case and Tackle Box), and a binder spring is pretty much the same thing, except the C-spring is extruded to be really long and has holes that allow rings fastened inside to pass through. It's a very non-standard ring profile (so screws can fasten), so I modified tackle box trays from the Tackle Book as pages for an example of interesting "stationery" - along with modifying the case for the binder covers. Demo and assembly at Caveats This is a proof-of-concept project. It has several i…

Frequently asked questions

Is this 3D model free to download?: Yes. Mini D-Ring Binder Mechanism Organizer Concept 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 Reavenk.
Who made this model?: Designed by Reavenk, 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.