A couple of years ago inventor Steve Hoefer wrote a how-to project for MAKE called the Secret Knock Gumball Machine. You record a special knock pattern by rapping your knuckles against the case. After that, only people who enter the correct knock pattern get a gumball.
Recently Steve made a Secret Knock Drawer Lock and wrote a tutorial for Adafrut’s learning site.
Steve remarks, "I’ve built this project a dozen times and every single time I finish it, it makes me incredibly happy to see it work. Even though I know every detail of it, it still feels a little bit magical." Indeed!
Below, a video of the lock in action.
A couple of weeks ago I reviewed New Matter’s MOD-t 3D printer. It was $400 at the time, but the price has temporarily dropped to $340. This is a great deal for an excellent 3D printer. I’ve been using mine like crazy since I got it.
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The recently-launched Waterjet Channel has been cutting all kinds of stuff with their high-power device, like these giant jawbreakers. Other good ones include an SLR camera: And a rubber band ball: • Giant Jaw Breakers vs 60,000 PSI Waterjet (YouTube / Waterjet Channel)
The ARMOR-X Mini Flexible Phone Tripod is a smartphone tripod that is designed with flexible legs to rest on virtually any type of surface. Other tripods have proved useless unless I conveniently have a flat surface in front of me, which is why this particular tripod was appealing enough to try out. The ARMOR-X is compact and easy […]
You don’t need to get an advanced degree and take out massive loans to become a coder. This bundle of 10 courses was designed to teach anyone to code at home for less than it costs to go out for dinner. I was particularly impressed with this new 2017 bundle because it includes courses on […]
Five Star Christmas Tree Co is providing the easiest way yet to decorate for the holidays. This company will actually deliver a Christmas tree or wreath straight to your front door for a reasonable price.This direct to your door service includes your choice of Fraser fir trees, ranging from 3 to 7 feet tall. So whether you live […]