Full Size Working Trumpet, a 3D-printed trumpet
Image: endtas via Thingiverse, CC BY-SA 4.0
Brass · Trumpet

Full Size Working Trumpet

A full-size trumpet with working valves and moving slides, modelled on a Selmer

Designed by endtas, published on Thingiverse

CC BY-SA 4.0 Commercial use OK Build info 2/5

Licence verified on Thingiverse, 20 October 2026.

Modelled on
The designer's 50+ year-old Selmer
Valves
Working, with realistic valve routes
Slides
All valve slides, the bell bow and the main tuning slide move
Mouthpiece
Monette-style included; a standard one also fits
Difficulty
Hard (valves need careful finishing)
On Thingiverse
933 likes · 111 comments (as of 20 Oct 2026)

About the Full Size Working Trumpet

A full-size trumpet with working valves, measured from the designer's 50-year-old Selmer. The valve routes are modelled realistically. All the valve slides move, as do the bell bow and main tuning slide, so you can tune it. A Monette-style mouthpiece is included, and a standard trumpet mouthpiece also fits. The designer says it has been printed successfully several times.

The first video is the designer's walkthrough of the design. The second is a maker playing his print, by his own account as a non-trumpet player. The designer's mouthpiece test video is no longer available.

What you'll need

Printed parts

  • Bell, leadpipe, valve casings and pistons, slides, mouthpiece

Bought parts

  • Valve springs
  • Valve oil

Tools

  • Sandpaper and files for the valves

Videos

Play video: Full-size trumpet design for 3D printing (loads YouTube)
Full-size trumpet design for 3D printing, endtas 3D models (the designer). Plays from youtube-nocookie.com after you click.
Play video: 3D-printed trumpet, first try by a non-trumpet player (loads YouTube)
3D-printed trumpet, first try by a non-trumpet player, patchlead (a maker's print). Plays from youtube-nocookie.com after you click.

Nothing loads from YouTube until you press play. Video thumbnails are © their creators.

Photos

Thingiverse doesn't let us fetch its gallery, so the photos stay on Thingiverse. See them on Thingiverse ↗

← Back to Brass