Walk Like A Xenomorph

[James Bruton] is busy working on his latest project, a “scrap metal sculpture”-inspired Alien Xenomorph suit.  However, he wanted to get a boost in height as well as a digitigrade stance. To that end, [James] 3D-printed a pair of customized stilts. Each stilt consisted of a lifter with several parts laminated together using acetone. He bolted an old pair of shoes onto the stilts, adding straps across the toes to keep the shoes from lifting up.

While the stilts worked very well, [James] wanted to add soles to them to give him some traction as he walked – falling while in a Xenomorph costume composed of sharp plastic sounds painful enough! He decided to hybrid print the soles using ABS and Ninjaflex. The ABS part of the sole was then acetone-welded to the bottom of the stilts.

[James] hopes to add some claws for effect, so long as they don’t impede his walking too much. He has already completed a good amount of the 3D-printed suit. We know the finished project is going to be amazing: [James] has created everything from Daleks to Iron Man!

Continue reading “Walk Like A Xenomorph”

PCB Manicure Wields Laser Cutter For Your Nails

Wearable electronics is a hot topic these days. Although these fancy talons are only for show, they could lead to more in the future.

[Shelby] and [Colleen AF] showed people how to include a laser cutter in your nail care at a recent event at NYC Resistor. The technique used here starts off with a base coat of the background color before heading to the laser cutter. Now don’t worry, you don’t need to risk any of your digits. A type of reverse silk screen is made with the laser by deeply etching the artwork into a piece of flat acrylic sheet. Those voids are then filled with the secondary color for the circuit traces and the excess is removed with a squeegee. A sponge is then used to transfer the paint from the recesses in the acrylic to the nails.

Granted, PCB finger nails might not be your cup of tea, but it does make us wonder: What if conductive ink was used? Would it be possible to build a circuit on your own fingernail? Obviously you would want to use a sticky, conductive glue rather than solder. (Please don’t try to reflow solder your fingers at home.) What kind of power supply would fit? What could you build? We also see other possible applications of the process like labeling non-flat surfaces. Let us know what you think in the comments below.

UPDATE: [David Flint] points out in the comments that this is a type of offset gravure printing.

GPS Clock Hat

Hat-Mounted Clock Requires Mirror For Wearer To Tell Time

[gfish] was planning on attending Burning Man and wanted to make something unique (and useful) to wear. He decided on a hat/clock hybrid. Just slapping a clock on a hat would be too easy, though. [gfish] wanted his hat to change time zones both via manual switches or physical location.

On the front of the hat there are 2 hands, as most clocks have. Each one is attached to one of two concentric shafts that run to the back of the hat. Each hand is individually controlled by an RC vehicle servo. Those of you familiar with RC servos know that a servos’ max rotation is about 180 degrees and is certainly not enough for a full revolution required by the clock. To fix this, there is a 3:1 gear set that allows a 120 degree rotation of the servo to move the clock hand a full 360 degrees. With this method, each hand can’t move past 12 and instead has to quickly move counter-clockwise to get where it needs to be in order to again start its journey around the clock face.

Mounted inside the hat there is an Arduino that controls the clock, a GPS shield to determine location and an RTC to maintain accurate time. Mounted on the side of the hat is a control panel that contains an overall on/off switch as well as a rotary switch for selecting a specific timezone or for engaging GPS mode. The whole thing is powered by a 9 volt battery.

If you like unnecessarily complicated top hats, check out this WiFi enabled message displaying one.

Continue reading “Hat-Mounted Clock Requires Mirror For Wearer To Tell Time”

A Haptic Bracelet For Physical Computing

[Tinkermax] has been reading about the Internet of Things and wearable computing and decided it was time for him to have a go at building a device that turned computing physical. The result is a vibrating wristband that connects his sense of touch to the Internet.

The electronics for this haptic wristband are a mix of old and new technology. The radio and microcontroller come from an ESP-8266 module that was programmed with [Mikhail Grigorev]’s unofficial SDK. The mechanics for the wrist-mounted computer consist of six pager motors mounted around the wrist. These are driven somewhat ingeniously by a TLC5917 LED driver chip. This meant the ESP would only need to use two of its GPIOs to control six motors.

Right now the software is simple enough; just a web page, a few buttons, and the ability to buzz any of the pager motors on the wrist band over the Internet. Now it’s just a question of making this wearable useful, but connecting each pager motor to different notifications – a new email, a new SMS, or some emergency on the Internet – should be pretty easy.

Video below.

Continue reading “A Haptic Bracelet For Physical Computing”

Self-Charging Jacket Eliminates Forgetfulness

Certain parts of the Northern Hemisphere are very, very cold right now. For those of us living in these colder climates, [Aaron] has a simple yet effective hack for keeping your hands warm when you go out for a walk in the brisk cold. He’s wired his jacket up for USB charging so he can make sure his hand warmers are always working.

[Aaron] bought a set of handwarmers that conveniently charge over USB, but he always forgot to actually plug them in once he got home, ensuring that they were always dead. To make his forgetfulness a non-issue, he built the USB charger for the handwarmers into his jacket, but he didn’t just run a wire out of the pocket. The USB charging circuit runs through the coat hanger, using some conductive cloth and steel thread in the inside of the jacket’s shoulders. From there, the cloth makes contact with the metal arms of the hanger and runs out of the hanger to the wall outlet.

This is a great cold-weather hack that might help any forgetful people on the north side of the planet keep warm. You could even use this method to charge batteries used in other wearable electronics. This project is a great reminder that sometimes the best hacks are the simple ones that no one’s thought of yet!