Collaborate Disseminate
[Mark Rehorst] tells us about a tragic incident involving an untimely demise of $200 worth of motor driving hardware, and shares a simple circuit so that we can prevent such …read more Continue reading Protect Your Drivers When The Motor Stalls
Taking apart old stuff and re-using the parts to make something new is how many hackers first got started in the world of mechanical and electronic engineering. But even after …read more Continue reading Turning Old Plotter Parts Into a Smooth Camera Slider
3D printer belt tension seems like a simple thing to deal with — you set the tension and then check it’s good now and then. If it gets really loose, …read more Continue reading 3D Printering: Don’t Tune To A Middle ‘C’ After All
Large mechanical seven-segment displays have a certain presence that you just don’t get in electronic screens. Part of this comes from the rather satisfying click-click-clack sound they make at every …read more Continue reading Silent Stepper Motors Make Electromechanical Clock Fit For a Living Room
Doorbells are among those everyday objects that started out simple but picked up an immense amount of complexity over the years. What began as a mechanism to bang two pieces …read more Continue reading Minimalistic Doorbell Doesn’t Need An Internet Connection – Or Even a Power Supply
[Zhihui Jun] is a name you’re going to want to remember because this Chinese maker has created quite probably one of the most complete open-source robot arms (video in Chinese …read more Continue reading Dummy The Robot Arm Is Not So Dumb
Faced with an old console stereo from the 1960s that was barely functional, [Sherman Banks] aka W4ATL decided to upgrade its guts while keeping its appearance as close to the original as …read more Continue reading 1960s Stereo Console Gets an Upgrade
[Kevin Lynagh] is interested in tiny PCB stepper motors, and after reviewing the various projects and patents to-date, decided to give it a try himself. These are basically a stepper motor …read more Continue reading PCB Stepper Motor Micro Robots
[Frank Herrmann] had an interesting idea to turn a geared DC motor into a servo motor assembly, but with a stepper motor-like interface. By stacking some small PCBs behind the …read more Continue reading Teaching A DC Servo Motor To Act Like A Stepper
The holidays always remind us of our favorite toys from when we were kids. Johnny Astro, an Erector set, and — of course — a Spirograph. [CraftDiaries] has an Arduino …read more Continue reading Arduino Drives Faux Spirograph