PVC Saxophone!




About: I made a book with some new projects in it! It's called Marvelous Makeable Monsters. Check it out here: https://amzn.to/2xN1uWj The Oakland Toy Lab is a community-based wonder lab for students to build, ti...
The easiest way to be the best in the world at an instrument is to play one that nobody else knew existed. With sounds from your personally pitched plastic that are a mix between John Coltrane a flock of wild geese, you'll be playing in no time. I like this project as an introduction to the physics of waves, acoustics, and music in general. And it's just a tooting good time.
  • What: PVC Saxaphone
  • Why: Hooooonnnnnnnk!
  • Concepts: acoustics, waves, physics, music
  • Time: 30-40 minutes to make, a lifetime to master
  • Cost: ~$2
  • Materials:
    • PVC (3/4" or 1/2" works great)
    • 4 PVC elbow joints
    • 1 Plastic Funnel
    • 1 Piece firm plastic (from packaging works great)
    • Tape (heavy duty)
  • Tools:
    • Hacksaw (or PVC cutter)
    • File
    • Scissors
    • Hot glue gun and hot glue
    • Drill

Let the music play!

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Start Your Reed

If you've ever accidentally talked to someone who plays a woodwind instrument, you've probably heard a lot about reeds. Well now you get to experience a single-reed first hand.

Start with your PVC pipe, and draw a diagonal line. I found that around 30 degrees works well. Use a hacksaw, and give it a cut. File off a little bit of the "tall" end of the diagonal cut" so that it's slightly rounded. This will make the reed sound much easier to play.

For a look into the amazing science of reed instruments, check out this link to get started.

Step 2: Finish Your Reed

Cut out a tongue of firm plastic the size of the opening of your PVC cut. Leave a little tail on the end for taping. Tape it down hard toward the bottom of the diagonal cut, leaving the top part free. There should be a small gap between the PVC and the clear plastic. If not, file down the PVC a little more.

Now try playing your reed by simply putting it in your mouth and breathing. You may have to experiment with bite and depth for a little to find where the note is made.

For more help on making this part of your saxophone, check out my previous project, "The Most Marvelous Honk."

Step 3: Cut Your Sax

You wouldn't be inventing your own instrument if you followed every one of these instructions, so get creative. The basic PVC saxophone "shape" is to cut out four more PVC lengths in addition to the mouthpiece, and to connect them all with elbow joints. In cutting the lengths, the main pipe where finger holes will be placed is the longest.

Use a hacksaw or PVC cutter to make any wild size or shape you want. The overall length of your pipe will affect the notes played, so you can mess around with a number of length combinations.

Next, drill holes in the longest of the PVC tubes to make finger holes for playing. You can experiment with different spacing to get different harmonics, but ultimately the closer the holes exposed are to the mouthpiece, the higher the note played.

Sound Science Stuff:

The sound created inside is due to standing waves created in what is effectively a close-ended air column. For a look at the science in harmonics and close-ended wind instruments, check out this website. For a look at specifically how saxaphones work, see this primer. A significant difference in the sound of a brass sax and our PVC sax is that our column is not a conical or bowed shape, but a cylindricial one.

When you open up air holes with your fingers, you are changing the length of the wave that resonates most strongly in the tube. In a simplified way, this is similar to shortening the length of the tube to wherever the closest exposed hole to the mouthpiece is.

Step 4: Amplify

You can't keep your PVC music just to yourself. Let those goose-like tones fly!

Cut off the end of the plastic funnel, hot glue it, and stick it either inside or around the end of your saxophone to amplify your sound a bit, as well as give it a bit of an aesthetic flair.

Step 5: Release Your Coltrane

Well the music isn't going to play itself! Start your path to Carnegie Hall one plastic note at a time.

You can honk and toot the day away, and when you're ready, take it apart and make a different design. All parts are easily interchangeable, and I'm excited to see what variations you come up with.

To learn more on the physics of sound, start here and then jump in to learn more about the science of instruments.

Have fun, happy tooting, and as always, keep exploring.

1 Person Made This Project!


  • Book Character Costume Challenge

    Book Character Costume Challenge
  • Made with Math Contest

    Made with Math Contest
  • Cardboard Speed Challenge

    Cardboard Speed Challenge

18 Discussions

Count Volta

1 year ago

Perfect for trying to busk with........

And make lots of enemies!


2 years ago

Great job but you should rename the tutorial. That is a clarinet not a sax.

You cannot have a sax sound with a tube, you need a cone. When using a tube you'll get odd harmonics which are specific to the clarinet sound and the bending does not change the sound.

1 reply

2 years ago

I have a couple of questions aboout the size and length of the pipes. First, what size should the reed pipe be? Also how about the length of the long pole?

1 reply

Hey there, I used a 3/4" diameter PVC and the other PVC can be adjustable. As commented below, it would be really neat to have the correct distance for holes, but I haven't gone in to tune yet! Hopefully some day!


2 years ago

I made an instrument with "The Most marvelous Honk" which is from an old fish tank tube and a funnel, so basically this except without the holes.

2 replies

2 years ago

Do you have the sizes for the holes? Also do you have the specific measurements of where the holes should be?

1 reply

Reply 1 year ago

Can you please send the sizes for the holes and the specific measurement of where the holes should be


3 years ago

Looks like the perfect thing to make for someone else's children. :)

Do you have any tips on hole placement & size in order to achieve tuning to actual notes?

2 replies

2 years ago

Although this is a great tutorial, it would have been nice to have the correct distance between holes for a full range of keys and notes. We made this.


3 years ago

Amazing project ! Do you have the sizes of the holes and where they should be on the instrument ? As a musician i need it to be tuned...