[Pythagoras] is a delta robot built originally using RC servos. Humbly, [Aaron] “concedes” that the first version of his delta robot using hobby servos was easy to build. As anyone who has built any kind of robot knows though, there is definitely a lot of work involved in even the simplest robot. Coordinating three axes and programming it to draw … Read the rest
Apparently a Braille computer display can cost several thousand dollars. That’s why [David Pankhurst] is working on a low-cost alternative. His offering is an open source version he calls the Audrey Braille Display.
The concept is quite good. This prototype has one line of six Braille characters. Each character is made of two sliding strips containing eight arrangements of … Read the rest
[Arshad Pathan] let us know about his latest project, a modular code lock that can be adapted to many different situations.
The user interface is made up of a character LCD screen and a 3×4 keypad. For this example [Arshad] is using a stepper motor as the locking mechanism. When the board is first powered up it runs the … Read the rest
We think this is an intriguing take on half-tone art. It’s a CNC machine that uses an Arduino and two stepper motors to draw on a paper-covered drum. But you’re not just going to set it and forget it. To simplify the device, the Z-axis is not mechanized, but requires the dexterous opposing digit of a person to actuate.… Read the rest
[Henrique] wrote in to tell us about his time-lapse photography hack. Triggering of the camera is done via CHDK, or Canon Hack Development kit. This experimental kit allows Canon Powershot cameras to run scripts as well as other neat features without permanently changing anything. User scripts for this hack and others can be found here.
Once the Camera … Read the rest
[Fergus Kendall's] company is making development and breakout boards targeting electronic hobbyists. As with any endeavor that involves selling something, they need marketing. It sounds like [Fergus] was put in charge of getting some nice animated 360 degree images of each component. Instead of going through the drudgery of snapping frames by hand in a stop-motion-style, he whipped up a … Read the rest
Instructables user [Dustyn] recently constructed a wind-based lantern to provide a bit of free, renewable light in urban settings. The project is based around a vertical-axis wind turbine, which she says are better suited to these environments since wind often comes from all different directions. Despite their lower efficiency compared their horizontal-axis brethren, this style of turbine seems to fit … Read the rest