Archive for September, 2009

Giger: RX-64 Based Custom Humanoid

Wednesday, September 30th, 2009

With my Hagetaka project on hiatus (eventually being rebuilt using EX-106s), my efforts had been diverted to a simpler and more manageable design. Originally intended as a last minute work around for Robogames, this project ended up being a permanent effort, and one that I’ve grown rather fond of.

Giger is a 24″ custom 24 DOF Humanoid using 16 RX-64 and 8 RX-28 Dynamixel Servos, weighing in at 9lbs total. He uses the same Gumstix based onboard controller that Hagetaka did, designed by Farrell Robotics, and is powered by two 1900mAh 4S LiPo batteries.


Walking gait is being refined, I’ll have video in the near future but much progress has been made. If all goes well, I’ll have him up and running for iHobby 2009 next month! Here are a couple of pictures, for the full set that we took check out my gallery in the TRC!

PhidgetSBC – Phidgets Linux Based Single Board Computer

Tuesday, September 29th, 2009

Phidgets have long been a favorite for computer software developers due to their ease of use, wide selection of sensors and I/O boards, and solid API offering for a variety of programming languages. The one thing that has always been a requirement however, is a physical connection to a computer via USB cable.

All of that is a thing of the past now with the introduction of the PhidgetSBC; an Arm9 based embedded Linux computer (it runs a custom Linux Distro built using Buildroot) combined with the tried and true Phidgets 8/8/8 IO Board.P1070

So what does that mean to you? In its simplest form and function, it effectively cuts the cable of your Phidgets projects and allows you to access your Phidgets devices over ethernet or the included Wifi dongle. The onboard computer acts as a server for the variety of APIs that Phidgets offers, and this enhanced ‘mobility’ opens the doors to a much wider variety of applications. The PhidgetSBC can function as a wireless extension of your PC, a Wifi enabled Robot Controller, or even a standalone Robot Controller. That’s right, the PhidgetSBC is fully programmable; there is an easy to use interface that allows you to load custom C or Java code directly to the board and have it run autonomously, without the previously required PC link. If that wasn’t enough, more advanced users can modify the Linux build to their hearts content, host other USB based Phidgets devices by simply plugging them into the PhidgetSBC, and has integrated support for streaming a web cam feed back to your PC. I’m really just skimming the surface here, for more details check out the (as always) very well documented product manual.

The PhidgetSBC will run you $243.90 USD and we are currently accepting pre-orders for this as we anticipate it to be a very high demand product. Given that the development kits for the onboard computer used here usually run in the ~$150-200 range, this price is a VERY good deal to anyone looking to take their Phidgets projects to the next level. Initial quantities will be limited and orders are filled on a first come first serve basis, so get your pre-order in ASAP to snag one up!

Fun Robot Gear!

Friday, September 25th, 2009

We’ve been asked for awhile to make the ‘I Build Robots!’ T-Shirts (we sport them at Robogames and various tradeshows) available for purchase. Well, we finally got off our lazy butts and made it happen. Our Fun Robot Stuff section is a bit barren right now, but we’ll be filling it with cool robot gear and merchandise in the near future.

Did I mention we have Robot Floor Mats too? Very bright, very retro!  Oh and ‘I Build Robots!’ stickers for good measure.

Matt Trossen, Hagetaka, and Roboard Featured in Make Magazine

Monday, September 21st, 2009

This month’s Make Magazine (Issue 19) is the yearly Robotics Hobbyist special, and features my boss Matt Trossen once again stealing all of my glory and talking about his take on the current state of hobby robotics. That is okay however, and I’m prepared to take it with stride because anyone reading this blog knows I’m the true brains behind this operation. Not only that, but I’m also better looking (it’s the beard) and I embrace an air of dignity and modesty.

Speaking of my dashing good looks and superior mental prowess; Make also featured my currently shelved and ego-crippling project Hagetaka. Rest assured; my wife and 2 year old have picked up 2nd jobs to fund this project further and it will return with even stronger servos and bigger guns, ready to assist me in my plan for world domin- err, winning Mech Warfare.

Last but not least, Make Magazine readers got a quick and to the point review of the Roboard, the first full featured Robotics Computer on the market.

But seriously, be sure to pick up a copy as the entire issue is full of fun projects and robotic tidbits sure to appeal to your average robot-geek. And like Christmas, it only comes once a year!

m19cover

Loki – Homemade Robot Looks Amazing

Friday, September 18th, 2009

I’m not at all exaggerating; Loki, a 4 foot tall 40lb ‘Domestic Style’ robot looks far better than anything I have seen produced for commercial sales.

LokiArm1 (Small)

Beautiful aesthetics aside, functionally it is one of the most impressive and polished PC based robots I’ve ever seen as well; custom software that handles object recognition, mapping and navigation, as well as voice commands, just to name a few. If all of that wasn’t impressive enough, creator Dave Shinsel has the schematics, documentation and even source code available on his site! Definitely check out Dave’s entire site, he has an impressive body of work, and his Youtube Page has some very cool videos demonstrating Loki in action.

Okay, This Is Just Rude

Thursday, September 17th, 2009

I mean, he didn’t even wash his hands. Robots are so insensitive to human mysophobia.

Can You Smell What Lynxmotion Is Cooking?

Friday, September 11th, 2009

Our good friends over at Lynxmotion have been a force to be reckoned with for well over a decade in the robotics industry; producing some truly inspiring and amazing robots over the years. My first ‘real’ robot was a Lynxmotion Hexapod 1 (the 3 servo variety) that I picked up back in 1997, and their product lines were one of the driving forces that got me addicted to robotics.

hunchie7

Well, they’ve impressed me yet again; Lynxmotion owner Jim and his son James, being robot enthusiasts and likewise fans of the Mechwarrior franchise, were intrigued with the Mech Warfare competition. Specifically they loved the biped aspect of it and so they set out to create a low cost competitive platform for Mech Warfare, and succeeded. Nicknamed ‘Hunchback’ and based around their BRAT biped platform, this is turning out to be one of the lowest cost and straight forward platforms for the competition. Currently there is a work-in-progress tutorial showing the build and code, and it looks like we have a very high chance of being treated to a complete kit allowing you to build your very own. If you’re interested in seeing how it progressed from prototype to near final revision, check out the project thread over on the Lynxmotion forums. Check out the following video of the Hunchback in action!

LittleDog Is Smarter Than I Am

Tuesday, September 8th, 2009

The complexity shown in LittleDog’s adaptive gait and terrain navigation seriously makes my head hurt. If you consider yourself a geek you are of course familiar with BigDog; the 4 legged robot that robot dreams are made of. LittleDog is similar in concept but at a much smaller scale, and MIT has been using it as a research platform for a number of years. Evan Eckerman from Botjunkie sums it up quite well:

Researchers at places like MIT have been using Boston Dynamics‘ LittleDog robot for years now as a testbed to teach legged robots to learn how to traverse variable terrain on their own. This video shows some highlights of a “dynamic double-support gait,” which means (as near as I can tell) that LittleDog is supporting itself, at times, on only two of its four legs. This is a substantially more efficient way of negotiating terrain than we first saw two years ago. LittleDog also demonstrates some markedly biological ways of negotiating obstacles (with the possible exception of the belly flop on the Jersey barrier)… I especially liked how it pranced in place slightly before tackling each stair. All this stuff is obviously a lot of work for a little bot, since poor LittleDog completely collapses at the end of every test.

LittleDog, remember, is teaching itself the most efficient way to negotiate these surfaces. Overhead cameras examine the terrain and plan out LittleDog’s route by computing a ‘cost’ for each step, which takes into account the distance moved towards the goal as well as the potential for a fall. After a lot of trial and error, LittleDog figures out how to best compromise between progress and stability, and the lessons it learns could be propagated up to other, larger quadruped robots.

This video is from Phase 2 of DARPA’s Learning Locomotion program… MIT’s LittleDog team was awarded funding for Phase 3 of this program back in 2008, so we’ll keep you updated.

http://www.youtube.com/watch?v=W1czBcnX1Ww

arbotiX – Advanced Robocontroller for the Bioloid System

Thursday, September 3rd, 2009

We’re good friends with the folks over at Vanadium Labs; some very talented people who have been in the robotics game for quite awhile but have just now established their official company. This is great news for the robotics community however, as they have some pretty amazing products on the horizon. One product in particular is the new arbotiX Robocontroller, an advanced Open Source microcontroller tailored for the Bioloid system and AX-12+ servos.
arbotix

The arbotiX robocontroller is an advanced control solution for small-to-medium size robots. It incorporates a powerful AVR microcontroller, XBEE wireless radio, dual motor drivers, and 3-pin servo-style headers for IO.

The arbotiX robocontroller is specifically designed to control robots built using Bioloid servos, although it is also a very high-end solution for powerful rovers. It is not intended to be a drop-in replacement for a CM-5, rather it is intended as a high level development tool for building more sophisticated robots.

So what we have here is an Arduino IDE compatible microcontroller with a plethora of I/O, plug and play capable with AX-12 servos, and an Xbee Wireless Link to your PC. It’s also worth mentioning that this was the controller used in the robot that won Year 1 of Mech Warfare, Issydunyet. For more information on the controller check out the Vanadium Labs website.

Trossen Robotics will be exclusively distributing this exciting and powerful new Robocontroller with an estimated release date of Mid-October 2009. We’ll have more details in the near future, stay tuned!

Want to see the arbotiX in action? Here is a quick video showing a basic Inverse Kinematics demonstration on Issydunyet!

Korean Robot Games Festival 2009

Tuesday, September 1st, 2009

Our friends across the Big Pond at Robosavvy were lucky enough to visit the Korean Robot Festival this year. They took tons of pictures and shot a lot of video showcasing some of the world’s top humanoid competition robots! From slightly modified Robonova and Bioloid bots, to fully custom towering humanoids, all shapes and sizes showed up to compete. Pedro from Robosavvy did an amazing job of documenting his time there in this forum thread, anyone interested in humanoid robots will be delighted to check it out.

The thread linked above has the full details, but this video stood out to me as awesome; it’s a custom built humanoid using AX-12 servos. Check out how quick and agile it is!