April 2010

Name the Thing Contest - 128

The prize this week is a multi tool that is sure to help you MacGyver your way out of trouble. This contest will run for one week (April 24- 30, 2010) . Ending time is based on central standard time. To enter, identify the item pictured above and give an example of what can be done with it. Please do not give the answer in the comments. Send an email

Handmade Teslacoil Toroid

Our friend Daniel Eindhoven will be selling Handmade Teslacoil Toroids along with other high voltage fun parts on his new web store. “If you want to spin something you first need a mandrel to spin the metal sheet onto. The mandrel can be made of a variety of materials, but if you want it to last you’re best off making them of steel. I started with two steel disks (190

DIY Standby Current Monitor

If you want to know how much current your electronic devices are drawing when they are turned off this DIY Standby Current Monitor will do just that. Back in the day when a power switch physically turned off the power to our electronics this was not a problem but these days the power button is normally just a soft input that simply turns the unit into standby mode. This is

WinLIRC - Computer Remote Control Using an IR Remote

With this simple IR receiver you are able to take command of your computer from across the room using a simple IR remote control and WinLIRC. Best of all the receiver should cost you less than $15 to build. “WinLIRC allows you to transmit and receive standard infrared remote control signals. This allows you to control your computer using almost any standard infrared remote control. It also allows your computer

Spinning RGB LED Ball

Our friend Carl who has been featured here many times in the past for his laser projects has made an improvement to his Spinning LED creation. Have a look at the new Spinning RGB LED Ball. “Unlike it’s predecessor this one has three axes. It was very challenging to build, with a total of 9 slip-contacts, not including the motors. I made it from scrap I had laying around and

DIY Arduino based Delta Robot

John Park posted a cool video of a DIY Delta Robot over at Make. Juan Uberstadt created this robot around an Arduino, we have seen other DIY Delta Robots before but this is the first one that is Arduino based. “The trajectory is generated by a Pathplanner, which considers the Dynamics of the Structure. Maximum allowable torques in joints and maximum allowable forces in Rods are never exceeded. (The robot