Some of this projects are dangerous. Please be aware that those projects are NOT intended to be build by children. Is up to the reader to build any project listed. Before following the instructions, please read the disclaimer listed at the main page.

I'm trying to provide a FREE (yes, FREE) source of science projects, DIY, weekend projects, garage projects and lots of crazy things to build. Don't complain or blame on me if you don't follow the instructions as indicated.

I hope you have fun!

This website is open for comments, suggestion and waiting for you to share your experience. All comments are monitored, so avoid spam, bad words or racist messages. The server may block messages if your comment is innapropiate. Also, not related messages may be deleted. (For example: the webpage about the homemade speaker and someone post a question about the barometer). One more thing: Don't ask before reading the entire text. Most of the answers are already posted. Also, don't ask me to make something for you. Web Pages on this category:

Beakman Motor
A super-simple electric motor. This project already won many school science projects. Useless but extremadely interesting. (7/8/2006)
Building a Lamina Flow Engine
Also called 'Stirling engine', 'Heat engine' or just 'Resonating engine' (11/11/98) (11/11/2008) What I was thinking?
Coin Mechanism for Coin-operated Projects I.
My first try to build a coin mechanism that works with quarters. A low-tech solution for projects that accepts coins to work. (12/25/2007)
DIY Coin Mechanism for vending machine II
Simple and easy to build. It can be adapted for your microcontroller project. It accepts Quarters and rejects any other coins. (11/26/2008)
DIY Coin Mechanism for Vending Machine III
'Ladies and Gentlemen, Behold! I present you an improved homemade Coin slot mechanism.' [Great for you MAME project if you don't plan to make a Vending machine] (4/19/2009)
Crafts: Bottle Fish.
You won't believe how easily you can make this awesome craft. An enviroment-frienly craft made from recyclable materials: A plastic bottle. (12/05/2007)
Electric 'LEGO' Motor
As the beakman motor have no torque at all, I decided to buil this project based on the design of the regular electric motors. With a medium difficulty, this motor is able to work with a fair load using 6 volts. (2/7/2007)
Electric 'LEGO' Motor II
As the previous motor is not easy to build and it doesn't have too much torque, I decided to improve the design. This motor is more like "Pulse Motor" as it pushes the magnets with only one coil. With only 3 Volts, it have three times more torque that the previous one and is easier to build. (2/9/2007)
Electricity from Piezoelectric materials
Easy experiment that shows how to get electricity from Piezoelectric materials, a clean source of electricity. Also, some interesting applications. (11/13/2008)
Fire From a Soda Can.
An interesting "survival project" that I received from a reader. How to make fire using a soda can. (7/2/2006)
Free Energy from the Sea.
A simple idea to harvest power from the sea waves. (2/22/2008)
Growing Salt Crystals.
Common salt, also known as sodium chloride or NaCl, have an interesting cystal structure. Water, Salt and lots of patience for one week, are the ingredients to grow salt crystals and get an easy science project. (6/3/2007) - Updated!
Halloween Decorations: Spiders
DIY projects for Halloween, Make your own Spiders. A cheap an easy project. (10/29/2008)
Halloween Decorations: Ghost
DIY projects for Halloween, Make your own Ghost. A cheap an easy project. Two projects sent by readers included.(10/30/2008)
Halloween Decorations: Spiderweb
DIY projects for Halloween, Make your own Spiderweb. A cheap an easy project. (10/30/2008)
Hard Water Experiments.
Here is two "science projects" to have fun with. It explains the term "hard water" and interesting facts. (5/07/2007)
Hi-fidelity Homemade Loudspeaker.
From the Inventor of the Styrofoam Plate Speaker, here are the instructions to build the "Hi-Fidelity homemade styrofoam-plate speaker". (8/6/2007)
Paperclip Compass
A simple and easy way to make a home-made compass using a paper clip and magnet.
Homemade Compass
Another easy-to-make diy science project. Build a compass for [almost] free! (1/14/2008)
How To Repair Sony PSP
For some reason, my PSP wasn't working ok. It had some sticky keys. Here is a "quick reference" how to repair the PSP keys. (09/20/07)
How To Make a Paper Plane.
I can't believe some stores are selling foam planes up to $2.95 USD a piece. Here are the instructions how to make a simple, yet effective, paper airplane. It really flies! (6/03/2007)
How To Repair Dell E172Fbp Display
Here are the instructions, and photos, how I did fix my DELL display E172Fbp LCD with a "flashing power light". This repair also works for model E171Fbp and E173Fbp. It may solve the "black screen" problem. An $8.00 USD repair. (5/12/2007)
How To Make a Speaker
A homemade speaker using a plastic cup, business card, wire, magnet and some Lego blocks. I built this speaker from scratch; I was surprised of the quality of the sound. Updated! (6/14/2007)
How To Make a Barometer.
A Barometer is used to measure the atmospheric pressure and is a tool to forecast the weather. (5/06/2007)
How To Make a Paper Cup
This lo-tech paper cup is really helpful when no cups are handy. A less-than-one-buck project (3/11/2006)
How to Make a Pinwheel.
A simple toy that children like during windy days. (5/27/2006)
How to make a Thermometer
Here is an easy-to-build homemade thermometer using materials available at home. (3/12/2006)
Homemade WiFi Lid Antenna.
A homemade Antenna using a USB Wifi adapter, a lid and some wood. I got 13dB gain. (7/29/2007)
Lego Chichen Itza
Today, I was so bored, I just made this Chichen Itza castle entirely with LEGO parts. (09/17/07)
"Lens Error" on Kodak cameras.
According to some websites, "lens error" on Kodak Digital cameras is a common problem, the solution? pretty simple. (So simple that, actually, you will be surprised). Let's find what's wrong with those cameras, specially the EasyShare models.
Linksys Wireless G USB antenna.
Hacking the Linksys Compact Wireless-G USB adapter model WUSB54CC to connect an external antenna. (10/24/2008)
Make Mexican Paper Decorations.
This is a simple and interesting paper decoration. Just a few paper sheets, folds, cut and you get an almost-free awesome decoration. (8/3/2007)
Making High Impedance Headphones
With less than 5 bucks (better known as $5 USD) you can make a high-impedance headphones for your homemade crystal radio. (11/27/2007)
Paperclip ideas
Some items to build and things to do with paperclips. (10/05/2005)
Paperclip Ideas II
So, you are looking for some things to make when bored at work huh?
Mini-Rocket.
A mini-rocket that uses water and carbon dioxide as "fuel". (2/26/2006)
Super Simple Sun Tracker.
Without using complex circuits and sensors, I was able to make my simple home-made Sun Tracker. This one only needs Solar cells, a motor and some gears. (11/20/2007)
Toothpicks designs.
With lots of toothpicks and time, I made some geometrical figures using wooden toothpicks. (3/13/2006)
Toothpicks with yummy designs.
With Toothpicks and Marshallows, I have some fun. Some Yummy and interesting designs. (5/10/2006)
Wood Gas or Biogas experiment
First test about making home-made gas from wood or biomass. A process called "Wood gasification" or "Biomass gasification". (11/03/2008)