Wouldn’t it be great if you could mark stuff with your name, slogan or logo in a way that wouldn’t wear of? You need a branding iron! But instead of ordering really expensive ones, you should consider making your own. As this tutorial from John Heisz shows, it isn’t tricky at all. With just an old metal wrench as material and simple tools like drills, files, a hacksaw and an angle grinder, John Heisz makes his own branding iron with the name of his website “I build it.ca” with excellent results! Just watch and learn how you could make your own permanent stamp. And if you need help doing the pattern transfer, check out our How to transfer inkjet prints to wood post, it works on almost any surfaces.
Photoresistors are very common electronic components that works like a normal resistor in total darkness, but as soon as light is hitting it, it changes. Increase the amount of light and the change will increase as well. This phenomenon is commonly used to detect when a light beam is broken, turning them into a light controlled switch. But did you know that they can also be used to make music? In this video Make: magazine walks us through a simple build that results in an electronic slide-whistle! Basically you transform light into music, and if you don’t think that is a cool idea, then what is?!