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Koen sent in this great looking Robot Arm that he put together in one day. It looks and works great for something that was put together so quickly. Koen is still working on acquiring some tools help him with his robot building but until then all of his projects including this one is hand built. “It’s really really simple i build this using two servo’s and two strips of aluminium. the servo’s i used one parallax servo (120 degrees) and one model-craft (90 degrees) servo. There are problems with the servo’s being to weak ( the servo’s i want to use are Dynamixel AX-12) but they are to expansive ( 42 euro each) )= the original idea was to give it a rotating hand and base so it could turn 360 degrees but I ran out of parts “
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Dave from Plastibots had some fun with the brake lights of his Nissan Juke. He added some red LED lighting strips to the car and made a custom circuit to drive them. He is getting power from the parking lights and taking in a signal from the brake lights. When only the parking lights are on the lighting strip is PWM controlled to a level of 75%, when the brake is applied the lights are turned on with full power. The control is done in a smooth fashion. I like this since lots of vehicle lighting these days turns on and off very sharply since most of the lighting is LED. I miss the days of incandescent bulbs which had an inherent brightening and dimming delay. “I wanted to also monitor and react to braking to enhance the effect. I decided to go with an ATTiny85 using the Arduino core. It only needed 1 input from the 12V brake power and 1 PWM output to control a MOSFET which in turn powered the LED light strip @ 12V. I built one controller per tail light.”
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This thing looks like a ton of fun to fly. I am not sure if a simple helmet would be sufficient for me to take the e-volo for a spin though. It’s one thing to fly a small toy multicopter around using a remote but when it comes to strapping yourself into the center of one that weights in at 90 kg! I hope that the e-volo is what it takes to make the flying car a reality for the everyday person. “The e-volos sixteen propellers allow it to take off and land similar to a helicopter. Its massive plus points compared to a helicopter are the simplicity of its engineered construction without complicated mechanics and its redundant engines. Should anything go wrong, e-volo can still safely land even if up to four of its sixteen motors should fail. Flight time can last between ten to thirty minutes, depending on the payload and the capacity of the lithium batteries. With an empty weight at 80 kg (including batteries), e-volo fits into the class of ultralights. Thomas Senkel developed the concept as a graduate physicist. He did the complete mechanical and electrical construction of the e-volo multicopter. His specialties are research & development of electric drives and ultralight vehicles and aircrafts. He is an enthusiastic paragliding and ultralight pilot. Stephan Wolf developed the software from scratch, which controls the e-volo’s onboard flight computer. He has more than 25 years of experience developing core drivers and embedded software development in the industry. Alexander Zosel is responsible for marketing, sales, and public relations. He has developed several patents and utility modules and is an avid paragliding pilot and flight instructor.“
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Eli Hughes developed this Active Pickguard project for a Freescale Kinetis contest. He unfortunately didn’t win the contest but that doesn’t change the fact that the project is totally cool. The contest had a ton of entries and with a quick look at the prizes you will see why, a first place prize of $10,000 isn’t too shabby! I love the cat6 cable that is used to plug it in. You aren’t a real geek unless your guitar has a programming/debugging port. Thanks for the tip Tony. “The processing has FIR based comb filters, IIR filters (cascaded biquads), Look up tables (overdrive effect) and some funky time domain stuff for pitch shift. I don’t have it in the video (limit was 1.5 minutes for the contest) but one of the patches shifting the guitar down an octave.”
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Thanks to skater_j10 for sending in this RC Tankbot project. It was created for Solarbotics but he added some additional details about the system on the project page. This tank looks like a great build platform for mobile projects. “In terms of cost, this RF network system seems to compete with even the most low end RC transmission systems. And even though you don’t really get a physical controller with this system, it is a lot more flexible and versatile than a standard RC link. As a theoretical example (that we still might do one day) we could have had a complete diagnostic link between the tank and controller with the Tankbot sending sensor data and battery power results back to the controller for real-time, remote results.”
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If you have see the DIY Pulse Laser Gun or the Iron Man Repulsor Light Laser Glove Project then with one look at this Laser Targeting Wrist Mounted Crossbow you would know that Patrick Priebe was the mad man behind it. Watch the video below to see it shooting balloons, cans and light bulbs. I would think that a micro video camera mounted on the glove would make for some good looking video. Via: Make, Geeky Gadgets “Selfmade crossbow. Solid metal, as always. Started as a weekend-project, as always. Took 10 days. Every part is homemade. Bolts are made from Carbonfibre-tubings with brass and steel tips.”
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