- makeITcircular 2024 content launched – Part of Maker Faire Rome 2024Posted 2 months ago
- Application For Maker Faire Rome 2024: Deadline June 20thPosted 3 months ago
- Building a 3D Digital Clock with ArduinoPosted 8 months ago
- Creating a controller for Minecraft with realistic body movements using ArduinoPosted 9 months ago
- Snowflake with ArduinoPosted 9 months ago
- Holographic Christmas TreePosted 10 months ago
- Segstick: Build Your Own Self-Balancing Vehicle in Just 2 Days with ArduinoPosted 10 months ago
- ZSWatch: An Open-Source Smartwatch Project Based on the Zephyr Operating SystemPosted 11 months ago
- What is IoT and which devices to usePosted 11 months ago
- Maker Faire Rome Unveils Thrilling “Padel Smash Future” Pavilion for Sports EnthusiastsPosted 12 months ago
DIY a Fascinating Acoustic Levitator
Using an array of 72 40kHz ultrasonic transducers to form standing waves of low and high pressure, the maker Julius Kramer has just created a 3d-printed acoustic levitator. 36 each are placed in the top and bottom shells of the device’s chassis.
What’s interesting about Kramer’s build is that he does a great job illustrating how it works, starting at around 3:00 with an oscilloscope, and continuing on with diagrams, and even a visualization of the waves using steam.
The transducers are energised with a square wave generated by an Arduino Nano. This allows the possibility of the frequency and phase of the wave to be altered, which can help tune the device and allow some movement in the vertical axis.
So let’s take a look at Julius Kramer’s video.