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    Question(s) Re: HerkuleX Servo's?

    Yep, that's all true. I also did a little test to see how well they work in practice. The result, in brief, is that they appear to work exactly as advertised.

    You can read about my experiment,...
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    Re: A review of low-DOF biped walkers

    Oh yeah, if you go to more legs than two, a whole lot more designs open up. There's a really neat tripod (yes, three-legged!) design in this paper. But I was only reviewing biped designs this time....
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    A review of low-DOF biped walkers

    Merry Christmas, everyone!

    I wrote up a review of biped designs that use very few degrees of freedom (i.e. servos). I thought it would be of interest to you all here, and since I know there are...
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    Question(s) Re: HerkuleX Servo's?

    Tician, I'm planning to get you an answer on that question (how well do they really do at going to a target position in a target time), but I'm waiting to get my hands on a few more servos — it...
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    Question(s) Re: HerkuleX Servo's?

    Setting the speed is only the same as setting a duration if the speed control is very fine-grained... if you only get to pick from (say) four different speeds, then there's generally no way you can...
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    Question(s) Re: HerkuleX Servo's?

    @jwatte: No, I haven't done any stress-testing yet. I do know they include a temperature sensor, and I'd be mighty surprised if they don't shut themselves off before overheating to the damage point,...
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    Question(s) Re: HerkuleX Servo's?

    Sorry to dig up this old thread, but I recently discovered these servos, and bought one. So far I'm absolutely loving it. Here's my write-up of how I got it up and running:
    ...
  8. News/Announcement BotScene.net: a new blog about humanoid robotics

    I hope I will be forgiven a plug, but I thought that readers here might want to know about this.

    I've recently started a new blog at BotScene.net, dedicated to humanoid robotics. My particular...
  9. Re: best wireless system for humanoid competitions?

    I really don't care what the controller is, if I can buy it at a reasonable price and plunk it into my project where a UART would normally go.

    But it may turn out to be even easier than I had...
  10. Re: best wireless system for humanoid competitions?

    I've found this gadget that appears to handle most of the work of being a BT controller (aka master).

    It's not a complete module; one would still need an antenna and a few other components, but it...
  11. Re: best wireless system for humanoid competitions?

    And to be clear, the setup you're talking about is a Gumstix, running Linux, and using something like this procedure to communicate with the PS3 controller. Is that right?

    I guess I could go that...
  12. Re: best wireless system for humanoid competitions?

    Well then, don't I feel silly. :)
  13. Re: best wireless system for humanoid competitions?

    Bullit is that the case? I know that the Farrells are using Gumstix too. Now I wish I'd paid more attention at RoboGames; it could be that some of the other builders that I thought were using...
  14. Re: best wireless system for humanoid competitions?

    Yes, I even wrote to SparkFun tech support, but they were not helpful. Their answer boiled down to "beats us, maybe you should ask on our forums."
  15. Re: best wireless system for humanoid competitions?

    I've gathered that you prefer XBee. :) But PS3 controllers don't speak XBee, so that's a non-starter for my purposes (which, I'll confess, range to more than just controlling my humanoid bot,...
  16. Re: best wireless system for humanoid competitions?

    Sorry to dredge up this old topic, but I noticed at RoboGames last week that most of the humanoid robot builders were controlling their bots with PS3 controllers in Bluetooth mode. These controllers...
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    Re: Robobuilder, Bioloid, RB2000 Discussion

    Hey, since you resurrected the thread, I'll chime in at this point. I got a RoboBuilder a few months ago, and it's awesome. It's very quick (quicker than my friend's Bioloid, FWIW), and extremely...
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    Re: My RoboBuilder mod

    Thanks for the feedback, all! The silver body parts started out as transparent parts, which I spray-painted metallic silver (several coats, with buffing in between).

    Adrenalynn, your color...
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    My RoboBuilder mod

    I just finished some appearance mods on my RoboBuilder kit (hey, if he faces another one in competition, I want to be able to tell which is mine!). Thought I'd share:
    ...
  20. Re: Updating RoboBuilder firmware without Windows?

    THAT'S IT!!!

    Thanks very much for pointing this out! I'll post any follow-ups to that thread.

    Best,
    - Joe
  21. Updating RoboBuilder firmware without Windows?

    RoboBuilder provides a "RBC Upgrade Tool" that lets you download firmware updates (or more interestingly, your own compiled C code) to the RoboBuilder Controller (RBC). But the silly thing only runs...
  22. Re: best wireless system for humanoid competitions?

    Thanks guys, that's really useful info! It sounds like PS2 controllers might be ideal for small events, where you can guarantee that there aren't going to be more than 7 controllers on at a time. ...
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    Re: programming RoboBuilder in C

    Great, thanks for the link looks like I'm not the first to walk this path, but I'll join you up front and help hack at the weeds as quickly as I can.

    Perhaps we should set up a SourceForge (or...
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    programming RoboBuilder in C

    One of the cool things about RoboBuilder is that the architecture is fairly open the servo communications protocol is (somewhat) documented, and there is a procedure for converting Motion Builder...
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    Re: I think I'm in love! (RoboBuilder)

    ...Unless, of course, you notice the "A" and "B" buttons at the top of the remote, or read page 74 of the manual a little more carefully than I did.

    Sheesh.

    So I take back that objection they...
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    I think I'm in love! (RoboBuilder)

    I just got the RoboBuilder Creator (Black) kit today for my birthday (is my wife awesome or what?), and spent the morning assembling the HUNO model.

    I love this kit! I'm feeling serious affection...
  27. Re: best wireless system for humanoid competitions?

    That's interesting I didn't know that about the PS3 controller. However, I haven't been able to find any information on interfacing with it, except this unanswered question. Perhaps my google-fu...
  28. best wireless system for humanoid competitions?

    I'd like to set up a wireless controller for humanoid robot competitions. I expect to do the programming myself, so I'm really not asking what works out of the box; I'm asking what frequencies and...
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    Question(s) Re: What library for use with an ATmega168?

    Yes, I should have mentioned that we're aware of Arduino, but our current goal is to work directly in C.

    Any suggestions on C libraries for that?

    Thanks,
    - Joe
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    Question(s) What library for use with an ATmega168?

    Our local club is currently defining a kit based on a bare (28-pin DIP package) ATmega168. (We like the idea of cutting our teeth on a $2.50 chip rather than even a $20 controller board.) We're...
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    Re: Help for beginner- Humanoid

    Bioloid is a great kit, though the servos are a bit slow and blocky (but incredibly strong). Also, be sure to check out the RoboBuilder kit — from what I've seen so far, it is by far the best bang...
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    Discussion Re: thoughts about RoboGames

    I wanted to let you all know that your thoughtful comments have been very helpful to me. I still think there may be room for more dedicated national events, but I also see that with the right...
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    Discussion Re: thoughts about RoboGames

    OK, these are fair points (and seem to be the general consensus). I can live with that.

    One final thought, though... and I suppose I should be having it over in the humanoids forum, but since...
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    Discussion Re: thoughts about RoboGames

    At the last event I organized, they were part of the room. (Which was part of the reason I chose that venue.)



    I'd be happy to, if I'm needed.



    Thanks, that's pretty much the point I've...
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    Discussion Re: thoughts about RoboGames

    Or even places for spectators to sit? I'm not sure what the situation was at the shooting gallery that's one I somehow managed to miss but at both the FF event and the Robo-One event, a big part...
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    Just For Fun Re: Robot competition

    Sure, I'll give it a try.

    Best,
    - Joe
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    Re: What's all this then?

    Thanks Matt, that's very helpful. Sounds like a very interesting project!

    Best,
    - Joe
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    Discussion Re: thoughts about RoboGames

    I did, and was pretty much ignored.

    I also don't think it's fair to blame this on the individual event organizers. If there were much they could do, I would expect some events to be better...
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    Discussion thoughts about RoboGames

    I attended RoboGames for the first time this year. I was a participant in the Fire Fighting competition, and was keenly interested in seeing the humanoid events.

    However, I was sorely...
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    Question(s) Re: Can anyone suggest some good CAD software?

    For 2D cad, I quite like QCad. It's not free, but it's darn cheap, and cross-platform.
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