Irrigating Your Garden With an Op Amp 05/06/2013 Instructables user diy_bloke built this op-amp controlled pump for his garden, using the classic 741 operational amplifier. He wrote a...
The Beauty of Making a Pen 05/03/2013 This video makes me want to play on the lathe! Alexandre Chappel’s video shows him milling his own ball-point pen...
Six-Headed Lego GBC Module 05/03/2013 Lego robotics engineer Akiyuki is rightly famed for his amazing Great Ball Contraptions (GBCs), including this sick 17-module arrangement he...
Ruggedized Rainbow Box 05/02/2013 Nick Poole, a technologist for SparkFun Electronics, built this beautiful Arduino-powered rainbow box: Recently, I had the opportunity to see...
Component of the Month: Op Amps 05/01/2013 Each month this year, we’re exploring a different electronic component, delving into what it is, how it works, and how...
DIY Robot Building, Circa 1956 05/01/2013 Stuart “Mr. Retro” Sandler built a super retro robot from plans found in a 57-year-old copy of Boys Life he’d...
Four-Drawer Resistor Storage 04/29/2013 Chris Connors shows his technique for storing resistors. Executive summary: he sorts by the 3rd color band! Over the years,...
Hackerspace Happenings for April 29 04/29/2013 Are you a hackerspace member? We want to know about cool projects you are working on, or have completed, tools...
Lego R2 Looks Sweet in Black and Gold 04/27/2013 Lego builder Matt “Monsterbrick” Armstrong rebuilt a Lego 10225 (a 2,000-piece R2-D2 model) in black and gold to create R2-Pi,...
Choose Your Own Adventure (With a Receipt) 04/26/2013 At Minne-Faire this year, I ran into Jerry Bjelojac who has created the Choosatron, an Arduino-powered, coin-operated choose-your-own adventure machine...
