According to his Instructables profile, [bwebby] wants to make cool stuff in the special effects industry. We think he has a pretty good chance at it based on the animatronic hand he built.
The finger segments are made from copper pipe. They are connected to each other and to the sheet metal palm with tiny hinges and superglue. That stuff inside the finger segments is epoxy putty. It keeps the ends of the tendons made from bicycle gearing cable firmly attached to the fingertip segments, and provides a channel through the rest of the fingers. These cables run through 50mm aluminium tubes that are set in a sheet metal forearm, and they connect to high-torque servos mounted on a piece of MDF. [bwebby] used a Pololu Mini Maestro to control the servos using the board’s native USB interface and control software.
Watch [bwebby] run through some movements and try out the grip after the break. If you want to make an animatronic hand but aren’t ready for this type of undertaking, you could start with an approach closer to puppetry.
Continue reading “This Animatronic Hand is So Metal”
This animatronic teddy bear is the stuff of nightmares… or dreams if you’re into mutant robot toys. In either case, this project by [Erwin Ried] is charming and creepy, as he gives life to an unassuming stuffed animal by implanting it with motorized parts.
[Erwin] achieves several degrees of motion throughout the bear’s body by filling the skin with a series of 3D printed bones, conjoined by servo motors at its shoulders, elbows and neck. The motors are controlled via an Arduino running slave to a custom application written in C#. This application uses the motion tracking and facial recognition features of the Xbox Kinect, mapping the input from the puppeteer’s movement to the motors of the doll’s skeleton. Additionally, two red LEDs illuminate under the bear’s cheeks in response to the facial expression of the person controlling it, as an additional reminder that teddy feels what you feel.
In [Erwin’s] video, he demonstrates what his application sees through the Kinect’s camera side-by-side with the mechanical skeleton its controlling. The finished product isn’t something I’d soon cuddle up to at night, but looks amazing and is fun to watch in action :
Continue reading “Robotic Terminator Teddy Will Protect You While You Sleep”
This Predator suit was premiered at this year’s Monsterpalooza conference. It’s nothing short of incredible. But the shoulder cannon is really what caught our attention. The thing is fully motorized and includes sound and light firing effects.
We saw a glimpse of what [Jerome Kelty] is capable of about two years ago. He was showing off an Arduino-based animatronics platform he put together for a Predator shoulder cannon that tracked based on where the predator’s helmet was pointing. But other than a video demonstration there wasn’t much info on the that actual build. This post makes up for that and then some.
A replica of this quality is rarely the work of just one person. A team of fans joined in to make it happen. After getting the molded parts for the backpack and canon from another team member [Jerome] set out to fit the support structure, motors, and control electronics into the space available. That meant a ton of milling, cutting, and shaping parts like the support arm seen above which integrates a servo motor into its rectangular outline. All of the controls fit in the backpack, with cables running to the helmet, as well as the cannon.
Continue reading “Predator suit for Monsterpalooza includes over-engineered shoulder cannon”
Meet Moostar, the fortune-telling Moose inspired by Zoltar. You remember Zoltar, the coin operated fortune-teller who made [Tom Hanks] a rich movie star? Maybe you didn’t see that flick, but [Sketchsk3tch] did and he pulled this show piece together for a company-wide conference with relative ease.
If you’re good at choosing parts for your projects it makes things a lot simpler. He started with a singing Christmas moose, a mini plasma ball to act as the crystal ball, and somehow came across a collector’s basketball case which was the perfect size for the enclosure.
The electronics also came together remarkably well. He uses a thermal printer to spit out the fortunes — which are actually security tips for employees since that’s the dcpartment he works in. The coin acceptor is a Sparkfun part and he tried two ready made solutions to make the moose talk. The first is seen below and uses pre-recorded messages played by an Arduino Wave shield. This was improved upon by using an EMIC2 text-to-speech module that really opens up the moose’s range of chatter.
Continue reading “Moostar — fortune telling moose knock-off of Zoltar”
Even with the added hardware that lamp still looks relatively normal. But its behavior is more than remarkable. The lamp interacts with people in an incredibly lifelike way. This is of course inspired by the lamp from Pixar’s Luxo Jr. short film. But there’s a little bit of most useless machine added just for fun. If you try to shut it off the lamp shade is used to flip that switch on the base back on.
[Shanshan Zhou], [Adam Ben-Dror], and [Joss Doggett] developed the little robot as a class project at the Victoria University of Wellington. It uses six servo motors driven by an Arduino to give the inanimate object the ability to move as if it’s alive. There is no light in the lamp as the bulb has been replaced by a webcam. The image is monitored using OpenCV to include face tracking as one of the behaviors. All of the animations are procedural, making use of Processing to convey movement instructions to the Arduino board.
Do not miss seeing the video embedded after the break.
Continue reading “Pixar-style lamp project is a huge animatronics win”
This anime character is dancing to the music thanks to some animatronic tricks which [Scott Harden] put together. She dances perfectly, exhibiting different arm and head movements at just the right time. The secret to the synchronization is actually in the right channel of the audio being played.
The character in question is from an Internet meme called the Leekspin song. [Scott] reproduced it on some foam board, adding a servo to one arm to do the leek spinning, and another to move the head. These are both driven by an ATtiny44. All of the movements have been preprogrammed to go along with the audio track. But he needed a way to synchronize the beginning of each action set. The solution was to re-encode the audio with one track devoted to a set of sine wave pulses. The right audio channel feeds to the AVR chip via an LM741 opamp. Each sine wave triggers the AVR to execute the next dance move in the sequence. You can see the demo video for the project after the break.
Continue reading “Making your anime papercraft move to the music”
[Hairygael] has been hard at work designing and building this robot structure that can be completely 3d printed. He’s admittedly not a big electronics person, so most of his focus has been on the design and construction of the bot frame. So far, he as a fully 3d printable (and available for download) hand that you can see in action after the break. Once printed, you’ll have to drill it for your own servos and add your own control system.
You can see the action is quite nice and sturdy in the video. [Hairygael] laments his lack of electronics knowledge when you see him hit roadblocks like multiple finger control. But, just as he points out in the video, we’re positive that some of you who are more familiar with that end of things will undoubtedly make this work well.
Continue reading “InMoov: a 3d printed animatronic hand you can download”