Rodger Cleye is always making crazy things.Check out his latest Marty McFly Hoverboard! “This H-copter on steroids has an “all up” weight of 20lbs when you add the “Marty” mannequin and 13.4Ah 5S lipo battery. The chassis is made of 300PSI 1/2in PVC. Each motor can handle 1200W but only takes 640W to hover. The battery acts as a counter-balance below the prop line. Flying time is respectable at
Laser machines are very useful pieces of gear. You can send a very precise file to it and it will cut or etch it perfectly and accurately as many times as you like. The entire machine is built with accuracy and repeatability in mind, so what if you want to have some analog fun with it? You would need to do some hacking just like our friend Martin Raynsford
OtakuSanel built a cool RC car that uses an Arduino, PS3 Controller and a few XBee transmitters. The RC car electronics are totally custom allowing him to take full control of the car functions using his PS3 controller. Range is great since the XBee transmitters are the 60mW units, line of site is claimed to be 1 mile on these things! You can see some intro videos of the first
In really old scanners you will normally find a florescent light source but new ones use a RGB light bar to shine on the document being scanned. There are lots of ways to make the thing light since it is a common positive 5 volt RGB light bar. To kick it up a notch Hack Shed decided to tie it into an Arduino and make it totally remote controllable.
In this project Steve Hoefer uses some electronics to create some fun chattering teeth that will give you some fun incentive to keep brushing your teeth for long enough to maximize effectiveness. A small microswitch waits for you to remove your toothbrush and the 555 timer goes to work counting down your 2 minute brush time. A servo motor that has been hacked to operate in continuous rotation mode
If you are into high end audio this project is probably not for you. If you are into tinkering with electronics then dig in. RimstarOrg shows us how to build a Piezoelectric Crystal Speaker. He took a Rochelle Salt Crystal that he made and electrically connected to it using some tinfoil, once rubber banded to a tin can for amplification the speaker was complete. When an alternating voltage is
We all use Bypass Capacitors in our designs but what size do you normally pick and why? Does location of the bypass capacitor matter? Should you use multiple values of capacitors? Chances are some of these questions are not obvious and might enhance your future designs if you know the answers. Electro Labs has a great article that solves of these questions in their Bypass Capacitor Tutorial.
