Compressor gun air horn
thingiverse
I made this air horn for my cheapo compressor I just bought. Its self explaining, to assemble. Ballon is perfect as a membrane, but you can also use a plastic bag.
Download Model from thingiverse
With this file you will be able to print Compressor gun air horn with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Compressor gun air horn.