Category Archives: seal

Fridge Alarm Speaks, and Saves Power & Food

One of the most power-hungry devices in our homes, besides the air conditioner or heater, is our refrigerator and freezer. It’s especially so if the door doesn’t close all the way or the magnetic seal doesn’t seat properly. [Javier] took to solving a recurring problem with his personal fridge by attaching an alarm to the door to make sure that it doesn’t consume any more power than it absolutely needs.

At its core the device is straightforward. A micro switch powers a small microcontroller only when the door is open. If the door is open for too long, the microcontroller …read more

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Posted in alarm, door, ESP, ESP8266, microcontroller, Microcontrollers, refrigerator, seal, wireless | Leave a comment

Pneumatic Origami

Odds are that if you’ve been to the beach or gone camping or somewhere in between, you are familiar with inflatable products like air mattresses. It’s nothing spectacular to see a rectangle inflate into a thicker, more comfortable rectangle, but what if your air mattress inflated into the shape of a crane?

We’ve seen similar ideas in quadcopters and robots using more mechanical means, but this is method uses air instead. To make this possible, the [Tangible Media Group] out of [MIT’s Media Lab] have developed aeroMorph — a program that allows the user to design inflatable constructs from paper, …read more

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Posted in aeroMorph, air, fold, morph, origami, paper, pneumatic, seal, Software Development, transform | Leave a comment

Custom Hydraulic Cylinders from Off-the-Shelf Components

When your project needs power, you might need to turn to hydraulics. There is a lot of mystery about fluid power, but there is also a huge supply chain devoted to getting you the parts you need to power your project. Off-the-shelf components may not fit your application though, in which case it might be handy to know how to build your own custom hydraulic cylinders.

While it’s true that custom cylinder builds are pretty common, it’s still interesting to see the process [MakeItExtreme] used. Starting with an off-the-shelf piston and gland, this double-acting cylinder build is a pretty straightforward …read more

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Posted in cylinder, fluid power, gland, hydraulics, misc hacks, piston, seal, welding | Leave a comment