Summary

This is a working, 3d printable lung powered airhorn.

Contains:

-Air horn parts

What is needed:

-A piece of plastic wrap/bag

Print Settings

• Notes:

No rafts or supports are needed.

The horn in the picture was printed in PLA with a layer height of 0.3 mm.

Post-Printing

Assembly: Step 1

Get a piece of plastic wrap or a piece of plastic bag.
Note: Thicker pieces of plastic works better than thinner pieces. So if the plastic wrap you used wouldn't work, try using something thicker, like a piece of plastic bag.

Step 2

Cover the top of the end piece with the plastic, so that the plastic covers the hole.

Step 3

Insert the end piece into the hull. If the part doesn't for some reason fit, you can try sanding the parts until they fit. Keep in mind that the fit should be tight to keep the plastic in its position.

Step 4

Insert the tube into the other end of the hull, and push it in until it touches the plastic. Keep in mind that the tube must just slightly touch the plastic, not to be pressed against the plastic. If the part doesn't for some reason fit, you can try sanding the parts until they fit.

Step 5 - tuning

To tune the air horn, blow into the hole in the side of the hull, and push or pull the tube slowly inwards or outwards until the horn starts making sound.

Step 6

Once you are satisfied with the sound, you can slide the other end piece onto the tube.
All of the parts should hold on pretty nicely, but if you want, you can glue them in their positions.