A wave tank is a laboratory setup for observing the behavior of surface waves. The typical wave tank is a box filled with liquid, usually water, leaving open or air-filled space on top. At one end of the tank an actuator generates waves; the other end usually has a wave-absorbing surface. Usually these tanks cost […]
DIY Wave Tank/flume Using Arduino and V-slot Continue Reading
Retired scientist [Mark Howe] spent the last couple months making an animatronic movie featuring his LEGO lunar lander in a video recreation of the Apollo 11 moon landing (also embedded below). [Mark] is not only the producer, but serves as the technical director, set designer, and cameraman as well. He designed and 3D-printed a custom special effects
LEGO LUNAR LANDER ANIMATRONIC MOVIE RELEASED Continue Reading
We use electricity to move things with the help of motors and magnets all the time. But if you have enough voltage, you can move things with voltage alone. As [James] found out, though, it works best if your objects — ping pong balls, in his case — are conductive. He wanted to add a Van
MOVING THINGS WITH ELECTRICITY Continue Reading
Multirotors, or drones as they’re popularly called, are so ubiquitous as to have become a $10 toy. They’re no less fun to fly for it though, and learning how they work is no less fascinating. It’s something [Science Buddies] has addressed in a series of videos examining them from first principles. They may be aimed at
LEARN MULTIROTORS FROM FIRST PRINCIPLES Continue Reading
[TheStaticTurtle] built a custom controller for automating his garage doors. He wanted to retain the original physical button and RF remote control interfaces while adding a more modern wireless control accessible from his internet connected devices. Upgrading an old system is often a convoluted process of trial and error, and he had to discard a couple
GARAGE DOOR CONTROLLER GETS THE IOT TREATMENT Continue Reading
This instructable describes how to make an ultrasonic “radar-style” display using an Arduino microcontroller, an ultrasonic sensor, and a small stepping motor. An optional sensor modification allows multiple objects to be detected with each ping. Construction is simple … all you need are two drills, a sharp knife, a pair of side-cutters , and a
Acoustic Radar Display Continue Reading
In theory, there’s isn’t much to building a CNC machine. Hook a bit to a motor and move the motor around with some lead screws and stepper motors. Easy. But, of course, the devil is in the details. [DAZ] made a nice-looking and inexpensive rig that probably isn’t the most precise CNC in the world, but it
The ability to move in any direction and turn on the spot is a helpful feature on robots that operate indoors around other objects. [James Bruton] demonstrated one possible solution in the form of a robot chassis that can move in any direction with three ball-shaped wheels. The video after the break is part two of
ROBOT MOVES IN ANY DIRECTION ON BALL WHEELS Continue Reading
For this project, I wanted to create a winch that would be functional for use in a show in a theatre. Often, we have to fly in and out small objects, like chandeliers. This unit would be ideal for raising and lowering small objects in spaces that did not have a fly system, or for
This instructable was created in fulfillment of the project requirement of the Makecourse at the University of South Florida (www.makecourse.com). In this tutorial you will learn how to make a fully automated robot named Rob who is equipped with sensors that allow it to detect obstacles. Rob moves until he comes into contact with an
Rob the Automated Robot Continue Reading
