Is this 3D model free to download?

Yes, Customizable Car Cup Holder Expander - Bottle Adapter for Large Bottles is free to download from Cults3D. Open it in the free Thinger app, or use the "Download from Cults3D" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Cults3D. Use the "Download from Cults3D" 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 TrueGeometry, published on Cults3D. 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.

Customizable Car Cup Holder Expander - Bottle Adapter for Large Bottles 3D printable model by TrueGeometry

Customizable Car Cup Holder Expander - Bottle Adapter for Large Bottles photo 1

Customizable Car Cup Holder Expander - Bottle Adapter for Large Bottles photo 2

Customizable Car Cup Holder Expander - Bottle Adapter for Large Bottles

Source: Cults3D by TrueGeometry

The Customizable Car Cup Holder Expander - Bottle Adapter for Large Bottles is a free printable 3D model from Cults3D by TrueGeometry. HEADS-UP, honestly: this is an untested print - the geometry is verified live in TrueGeometry Playground, but no test print or slicer pass has been run. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Cults3D

30 saves Source: Cults3D Updated 2026-10-19 License: CC-BY · commercial OK Category: Other

About this model

HEADS-UP, honestly: this is an untested print - the geometry is verified live in TrueGeometry Playground, but no test print or slicer pass has been run. Print in PETG or ASA only: PLA softens in a parked car's heat. Fitment sizes are community-sourced, so measure yours for best fit. Parts join with intentional 1-2 mm overlapping shells (a watertight no-boolean pattern), so the Playground collision check flags the assembly by design. Brand and car names are compatibility references only - no affiliation or endorsement. WHAT IT IS An adapter that drops into a small car cup holder and holds a large bottle: plug cylinder, floor disk and an octagonal ring tower with a real round bore. FILES 05-cup-holder-expander-assembly.stl (main, full assembly), plug, cupfloor and ring component STLs, recipe…

Frequently asked questions

Is this 3D model free to download?: Yes. Customizable Car Cup Holder Expander - Bottle Adapter for Large Bottles is free to download from Cults3D. Open it in the free Thinger app, or use the "Download from Cults3D" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Cults3D, not by Thinger. We link you directly to the original listing by TrueGeometry.
Who made this model?: Designed by TrueGeometry, published on Cults3D. 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.