Is this 3D model free to download?

Yes, Gramazon - The Acoustic Echo Amplifier! 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 IamStarGoat, 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.

Gramazon - The Acoustic Echo Amplifier! 3D printable model by IamStarGoat

Gramazon - The Acoustic Echo Amplifier! photo 1

Gramazon - The Acoustic Echo Amplifier! photo 2

Gramazon - The Acoustic Echo Amplifier! photo 3

Gramazon - The Acoustic Echo Amplifier! photo 4

Gramazon - The Acoustic Echo Amplifier!

Source: Thingiverse by IamStarGoat

The Gramazon - The Acoustic Echo Amplifier! is a free printable 3D model from Thingiverse by IamStarGoat. I have always loved the look of the old radio horns of the 20’s and 30’s, but sadly, acquiring them is becoming harder and harder these days, and when you do come across one, the. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

5,940 saves Source: Thingiverse Updated 2026-10-27 License: CC-BY-NC-SA · non-commercial 62 makes Category: Gadgets & Electronics

Tags: Amazon, Amazon Alexa Echo Dot, Amazon Echo Dot, Amazon Echo Dot Case, Echo, Echo Dot, Echo Dot acoustic, Echo Dot Base, echo dot case, Gramophone, horn, radio horn, speaker

About this model

I have always loved the look of the old radio horns of the 20’s and 30’s, but sadly, acquiring them is becoming harder and harder these days, and when you do come across one, the price is usually very high. There are reproductions on the market in the form of standalone bluetooth speakers, but these are usually sold at an even higher price point than the originals. I had almost given up on the idea of getting one of these until I had the aha-moment so many of us makers have at some point. I realized “Hey, I have a 3d printer, so why not just make one?” and so off I went to Fusion 360 to see what I could slap together. Initially I was just going to make the horn part, and make a wooden base for it to house some electronics for a Bluetooth receiver and speaker, however, looking at my Echo Do…

Frequently asked questions

Is this 3D model free to download?: Yes. Gramazon - The Acoustic Echo Amplifier! 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 IamStarGoat.
Who made this model?: Designed by IamStarGoat, 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.