Wow, this has got to be the most stunning LED displays I have seen in a while.  It’s actually a bunch of LEDs attached to the back of the screen.  It’s not your typical 16 Million color LCD display but it’s a fun neat little LED painter that can do some minimal graphics and animations.

Video after the jump

Continue reading ‘DIY LED Wall Painter/Animator!’

If you ride in the rain, we don’t recommend the DIY Cardboard bicycle that costs $30 to make but if you do live in a hot country, this cardboard bicycle might save you some dollars and help re-use some of that leftover cardboard.

Phil Bridge, 21, of Stockport, Greater Manchester, believes his “ultimate green machine” will be cheap enough to attract occasional users while also deterring thieves.

The frame, made out of cardboard normally used in industrial packaging, could be produced for as little as £3.

Once the wheels and chain had been added the total price might rise to only £15.

via treehugger

As an avid fan of Linux operating systems ever since I took Minix class, which Linux was born from, I love to hear about cool little DIYs on making a Linux firewall out of a lunch box.

The greatest thing about Linux operating systems in comparison to Windows or any other operating systems is that it can be easily custom tailored to do one thing whether that’s a web server, firewall, file server, or any type of server that requires stability at “no cost”.

This simple DIY shows us the things that are possible with open source and free software.

Heck, you could probably make a lot of money putting these Lunchbox Linux firewall boxes to production as they are as good as an over-priced Cisco router.

It’s a plastic Thermos brand Hot Wheels lunchbox circa 2007. Black plastic, white handle, but no Thermos inside. As soon as I saw it, I knew it would become a computer case, so I bought it, brought it home, and started digging in the parts box. Grabbed one of my Via C3 embedded 3.5″ boards, a cheap 4GB compact flash card, a small 5V, 8A power supply, and my exacto knife and files.

via technabob

Remember the Solar Powered Lawnmower DIY? (version 1 / version 2)

Well, here’s the great news.  Someone is actually selling these custom versions of solar powered lawnmowers if you want to skip making it youself.

via keetsa

Here’s another cool DIY amateur TV receiver!

This is a 1.2 GHz microwave antenna made from regular 6″ household air duct. It picks up a signal from our new Amateur TV repeater. (The repeater will take a TV signal from anywhere in the local county, and retransmits it to everywhere in the local county.) The antenna looks like a giant flashlight.

via make

Here’s a visually appealing DIY cassette tape lamp if you want to recycle your old outdated cassette into something useful and doesn’t take up extra space in your home.

The designers make each lamp from dozens of individual cassette tapes, arranged into visually appealing patterns. Not only do they look cool as a sculptural piece, they cast dramatic shadows onto surrounding surfaces.

via technabob

Do you need a floating shoerack?  Here’s how to make your own shoe rack out of IKEA Stripa!

I really like the J-Me metal shoe rack that works in the same way as this one, but I want a few of these and the J-Me ones cost 50 GBP each. Home made ones I’ve seen made with planks and shelf brackets all look a bit ugly, but using a few of these pre-shaped Ikea shelves is more aesthetically pleasing, uses fewer components, and costs about 8 GBP.

via instructables

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Here’s a fun science experiment you can do to create some AC current from a 9 volt battery.  Well, it’s not “real” AC current but still really cool.

via wonderhowto

Here’s a cool DIY on how to make a pan tilt airsoft gun.  You can even buy one here if you want to skip making it yourself.

“The robot airsoft kit brings together a simple pan/tilt servo setup with an automatic airsoft gun. Everything is controlled from your computer’s serial port. Attaching a camera allows you to have completely autonomous control of the gun, which makes it an ideal platform to enter the Defcon Robot Contest or the Robot Airsoft event at RoboGames! Overview

* The base has a servo which controls the pan.
* That connects to the U structure, which is the tilt, and holds all the control electronics.
* The gun is attached to the tilt rod. It’s a generic connection so any light gun will work.
* The pan/tilt is controlled from the computer’s serial port.
* Firing is done through a relay via the servo controller.
* Power comes from 8 AA batteries (4 for the gun, 4 for everything else).”

via hackedgadgets

Here’s a cool DIY digital clock driven mechanically.  Technically speaking, it’s a mechanical clock.

Numbers are printed on vertical sliders and only reveal themselves when shifted into perfect alignment with the ‘display box’. When not aligned they look like random, alien forms. Click the image to see a short film.

Video after the jump!

Continue reading ‘DIY Mechanical Digital Clock!’