trumpet_valveless by rzirin

Last crawled date: 3 years, 3 months ago

This is a valveless trumpet (bugle) built from a trumpet model with the valve assembly replaced by a transition tube.
The original trumpet CAD model was created by Zsombor Baka and placed on https://grabcad.com/library/trumpet-9 on January 22, 2016
.The mouthpiece was created by Valdecir Ferreira and placed on https://grabcad.com/library/trumpet-mouthpiece-3 on April 27, 2015.
*I have updated the model to a 11.66 mm (0.459") bore size and have increased the tubing thickness from 0.75 mm to 1.67 mm for 3D printing.
*Based on results given by David Gibson in his paper "Novel Designer Plastic Trumpet Bells for Brass Instruments", http://dx.doi.org/10.14236/ewic/EVA2016.3, I have modified the bell thickness from 0.75 mm to 4 mm in an attempt to better match the plastic vibratory response with that of brass.
*I have designed the receiver end of the leadpipe to accept the mouthpiece with a zero gap to the receiver internal step. If you want to set the gap to 3mm just file 3 mm off the end of the mouthpiece.
*Once I am satified with the tone of this valveless trumpet, I will be releasing a trumpet assembly with working valves based on the same CAD files.