Uploaded July 2021 | Updated September 2026, 2 weeks ago

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Let’s learn how to use foam boards to build an electronic musical instrument!!
The process will involve: preparing parts, measuring dimensions, designing, cutting, gluing, wiring, and sound designing.

We are building a homemade theremin in this tutorial!!

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Parts:

-Foam Board (There are cheaper sets than this. This set includes 15 boards which may be too many)
amazon.com/Excelsis-Design-Acid-Free-Available-Double-Sided/dp/B07M6BTV99/?th=1

-X-Acto Knife
amazon.com/X-Acto-XZ3601-X-ACTO-Knife-Safety/dp/B005KRSWM6

-Cutting Mat
amazon.com/s?k=cutting+mat&ref=nb_sb_noss_2

-Metal Ruler
amazon.com/s?k=metal+ruler&ref=nb_sb_noss_2

-Pencil

-Double Sided Tape
amazon.com/Scotch-Dispenser-Engineered-Photo-Safe-137DM-2/dp/B002VLA5SI

-Glue
amazon.com/Krazy-Glue-Tube-Original-07/dp/B000Q3GW3A

If you want to recreate the DIY theremin:

-Arduino
amazon.com/Arduino-A000066-ARDUINO-UNO-R3/dp/B008GRTSV6

-Distance sensor (Ultrasonic Distance Sensor should work! I bought mine at RadioShack almost a decade ago.)
amazon.com/s?k=distance+sensor&ref=nb_sb_noss_2
Or
sparkfun.com/search/results?term=distance+sensor

-Wires & breadboard
amazon.com/Standard-Jumper-Solderless-Prototype-Breadboard/dp/B07H7V1X7Y

-Standoffs, screws, and nuts
sparkfun.com/products/10463
sparkfun.com/products/10453
sparkfun.com/products/10454

-Rubber Feet
amazon.com/gp/product/B06XPCLN23

-Caliper (optional but helpful!!)
amazon.com/gp/product/B017KUC6XQ

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Social Media (please feel free to share your creations!)
instagram.com/takumi_ogata
twitter.com/TakumiOgata

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0:00 - Intro
0:19 - What is Foam Board?
1:49 - What to Buy?
3:12 - Measuring & Designing
4:31 - Cutting Foam Boards
5:17 - Attaching Parts
6:49 - Gluing
7:37 - Let's Make Some Noise!
7:47 - Outro