Makers, let’s say you could only have 4-5 pages of important charts, formulas and references – what would they be? Here are a few to get you started… Resistor color code chart Capacitor code chart Key to schematic symbols Simple circuits to build Drill size conversions Screw measuring card Formulas to calculate areas and volumes […]
Black.horizons sent in how to make those cool “light pen” art & animated GIFs – ” 1) use a camera on a tripod. 2) set the lens to stay open for 15 seconds [less if its lighter, and the drawing is smaller] 3) use a lightpen, or alternatively use the “flash” that comes with most […]
Chebang writes – “I am so tired of paying for a new notebook. I never find exactly what I want. I run through about one notebook per month and I’d rather spend that money on a great new pen. So I thought, why not make my own? This tutorial will show you how to make […]
Formal Play writes – “I made this light table for use in burning screens with more accuracy. It is made from a flippped over Lego table with a large window pain resting on the now inverted four legs of the table. The table had the center removed to originally house a hanging bag for block […]
Ken writes – “Here are bicycle panniers made from a couple of dog-food storage containers and a lot of duct tape.” – Link.
Inexpensive handheld braille writer made by students – “To help provide a low-cost communication tool for blind people, undergraduates at The Johns Hopkins University have invented a lightweight, portable Braille writing device that requires no electronic components. For a class called Engineering Design Project, four mechanical engineering majors were asked to produce such an instrument […]
From Popular Science’s How 2.0, homemade spy sub – “Some fathers and sons play catch. Electrical engineer Jason Rollette and his 12-year-old son Trevor are a little more ambitious. Hoping to explore the lakes and rivers near their Milwaukee home, they’ve built their own underwater remote-operated vehicle, or ROV. Controlled and powered by a laptop, […]
