[Tom Shannon] uses science as part of his art. One of his methods when painting is to use this radio controlled paint pendulum. He gave an interview at his studio, which we’ve embedded after the break, and goes into detail about this device. It has six different reservoirs that hold the paint colors. Each gravity-fed canister connects to a central nozzle with flexible tubing. The hand held control box has a slider for each color that moves a servo pinching each supply tube. This ingenuity keeps him creating even though Parkinson’s Disease has started to manifest itself with tremors in his hands.
It’s hard to make out the paintings seen above, but the ones on display in the video are pretty amazing. He mentions that anything can be loaded into the hoppers, including tomato sauce. Is anyone else thinking about large scale pizza constuction? This also reminds us of the mechanical bartenders we’ve seen in the past. Continue reading “Wireless painting”
[Flyboy258] shows us that hobby R/C airplanes can be built from trash relatively easily. A bit of old tarp and a simple frame work as the body. The rudder is made from old foam packaging. It seems to fly pretty well considering the lack of official design, or aerodynamic features.
We hadn’t been here long when we stumbled upon the Drone tent. The AR Drone is a wifi controlled quadcopter that has been making waves recently. We actually got to play with one a little bit. Well, sort of. There was too much interference inside for us to fly it manually, but we did smack it around a little bit while they told us about it. It was amazingly steady and strong while it tracked a target around the tent. Check back later for more videos and details.
You can try to be unimpressed. You can attempt to feign disinterest. But even the most casual Star Trek fan will get giddy watching this model submarine in action. Apparently there is a group that builds under water R/C vehicles from static models. It’s not Star Trek exclusively either, we saw some anime vehicles as well as a modern-day shuttle replica.
[Electricunicycle] put together this radio controlled mobile theater system to amuse his neighborhood pals. It is a projector and what looks like an electric wheelchair base. He has managed to fit a decent sound system in there as well, which required a second battery. This is pretty cool, though we could see ruggedizing it a little more to be able to drive around in fields. He states “this is one of the faster movie theaters around”. This makes us wonder what the competition is like.
Here’s something that the R/C airplane crowd might think of as old news. These directions show us how to rework floppy drive and CD Rom motors to be high power airplane motors. There are several listed, with details on each, but those unfamiliar might want to start with the most basic CD Rom version. It covers winding your own copper and installing the magnets in the “bell”, putting it all together and mounting it. This is a great writeup for those who haven’t seen this done before. If you want something even simpler though, you might enjoy the homopolar motor post. If you’re more advanced, they have tips for you too on machining and balancing the motors as well as winding density.
We stumbled onto one of [Nik Melton]’s projects, an Omni-car. It is omnidirectional, meaning it can go any direction at any time without having to turn. The body was designed by him, then printed with a 3D printer. The control scheme is what interests us though. He has found a simple way to wire it to get the job done. Sure you can see that it suffers from some pretty bad “drift” when trying to go in a straight line, but overall, we think he pulled it off well.
You might want to take a few moments to look around his project page. This guy has done a bunch of fun stuff like delta robots, strange hybrid wheel/leg robots, tesla coils, and arm mounted flamethrowers. Judging by the videos, he’s pretty young too. We think his guy has a bright future ahead of him.