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Recent comments
Recent comments
- Electronics has gone from
27 weeks 2 days ago - Hi,
Nice design, very
27 weeks 6 days ago - That's a difficult
28 weeks 6 days ago - I like your ideas of robot
29 weeks 4 hours ago - That's pretty much how
29 weeks 4 hours ago - Personally I feel a word's
29 weeks 4 hours ago - I used very very small pager
30 weeks 2 days ago - I used very very small pager
30 weeks 2 days ago - This was one of the very few
31 weeks 17 hours ago - Another great nano! Saw this
31 weeks 17 hours ago
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A very nice robot. I like the fully-encompassing plexiglass shield/bumper around it.
Very nice looking robot. In one of the images it looks like he's maintaining a level platform on an incline. Is this a feature built into the software?
"fun" story: I built a fire-fighter robot. I spent months on the thing, and it was working pretty well. I drove all the way to CT for the official Fire Fighting contest at Heartford, CT. Testing went well, and the Atomic Firebot did excellent during trial runs.
However, for all three of the judged runs, the robot freaked out and ran into the walls.
Those little buggers know more than we think they do ...
Building such small robots must be particularly challenging. You've done a fantastic job on this project.
A very nice 'bot! Does he have a cliff sensor to avoid tumbling down the stairs?
Awesome project. I hope to build a balancer in the not too distant future. I really like the idea of collaborating on the project and then building multiple units from the same plans.
Thanks! It's more fun if your robot doesn't smash into walls instead of completing its mission :) :) :)
There is talk of another firefighting competition this year... so revisions to Pokey are in the works...
Wow! I feel like I'm meeting a celebrity. I remember seeing BioHazard compete on Battlebots. They showed a biographical clip on you and the 'bot too, if I remember correctly. Congrats on an awesome robot.
Congrats on your win! I'm very impressed with your stepper motor performance. Operating at that speed is amazing. I'd love to see a video of your robot in action.
Congrats on such a nice robot. It's impressive that you've already competed. If the robotics hobby had existed when I was 13, I can't imagine how happy I'd have been. Best of luck with your future 'bots.
Very cool project. Having a powerful PC for higher level control must open up a whole new world of options for intelligent behavior.
Impressive piece of machinery -- congrats!
Very cool and compact robot! Participating in a competition looks like it would be a blast!
I agree, beautiful robot! Nicely done. Would love to know some of your plexi secrets. The stuff always cracks when I look at it funny :)
Nice! Would love to hear more about components, particularly those geared motors (where from?) and the wheels (DIY??)
A very impressive robot! I like the physical design, including the panels/skins to give it a more polished look than most open-frame robots.
Thanks for the kind comments! The motors are small Maxons that cost about $17 each surplus. I can't read the model information off of them at the moment because of the way they're mounted.
The gearing on them provides a little too much speed and not quite enough torque, but that's not a big problem if I run them at 70% power on linoleum and 100% power on carpet (adjustable on the fly via the menus).
That's a beautiful robot, jbot. I'm impressed that you decided to opto-isolate the motor/logic circuitry. What motors did you use for this?
HI :
sorry but my English is not very good
*Copal 50:1 Motors
*Processor is a PIC16F819
greetings from mexico!!
Neat robot. I like the video. What type of motors did you use? What type of processor?
Thanks! The IR LEDs enclosed in the flashlight reflector actually did fairly well. No issues from video cameras that I had available to test. Ceiling lights didn't seem to be a problem as the reflector restricted field of view. I set up the reflector so that it would be maximally sensitive to light in the same height range as the regulation candle height. The big problem I had was that I'd calibrated it with a window in view at home, but the shades were closed in the competition so the thresholds were off -- and the detection code was pretty unsophisticated. Maybe with a little more refinement ...
I purchased them from Bricklink. You can find them here:
http://www.bricklink.com/catalogItem.asp?P=48064c02
They run on AA batteries. The rudder is essentially non-functional and we don't use it. We spin the entire assembly from above using NXT motors suspended over the crossbeams.
Hey InanimateReason, I'm not familiar with the "LEGO underwater boat motors" - are those custom or did you purchase them?
Nice work on Pokey. My first robot was also a fire-fighter. How well did the IR LEDs work out for finding the flame? Were they confused by ceiling lights or video cameras?
:S ...hard to say, not exactly the path I've walked trough, the only thing I felt alike is the issue of working in brand new areas, my dissertation is looking for a behavioral approach in rescue robotics, concerning small teams and swarms. So, a lot of swarm intelligence, a lot of cooperative and behavioral robotics, but nothing precisely deep in-between. Nevertheless, I haven't published anything formal, trying to take MSRS into the fight =P...
Don't know if ever used, but for me this has worked http://ocw.mit.edu/OcwWeb/web/courses/courses/index.htm...maybe you can find something useful there.