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 Robotics / *35427 (-10)
  Re: articulation points?
 
(...) The trouble with this is that it's not necessarily true. Take 100 Lego turntables and connect them up into a vertical column. By this measure, it has 100 DOF - but as a mechanism, it has no more flexibility than a single turntable (1-DOF). (...) (23 years ago, 21-Nov-02, to lugnet.robotics)
 
  Re: Helicopter was Re: Newbie has an idea
 
(...) A Lego remote controller would be cheaper than a second RCX. ---...--- Steve Baker ---...--- HomeEmail: <sjbaker1@airmail.net> WorkEmail: <sjbaker@link.com> HomePage : (URL) : (4 URLs) (23 years ago, 21-Nov-02, to lugnet.robotics)
 
  Re: Newbie has an idea
 
(...) Yes. (...) Depends a lot on how much work your robot is doing. If it's just running the computer with no motors or sensors turned on - then probably 12 hours. If you are running lots of motors and sensors then it's more like 3 hours...but it (...) (23 years ago, 21-Nov-02, to lugnet.robotics)  
 
  Re: Why...
 
Nick, Setting the timeslice to a low number (5ms is fairly low), negetively effects overall system performance. Time used by the operating system for task switching is taken away from applications. If a switch takes .5ms (for example) and you switch (...) (23 years ago, 21-Nov-02, to lugnet.robotics.rcx.legos)
 
  Re: Newbie has an idea
 
(...) Power-to-weight ratio's are far too poor. Electric-powered aircraft have to be built with very careful attention to battery and motor technology with the lightest possible designs. Lego is HEAVY - so no aircraft. (...) Yes - that's fairly (...) (23 years ago, 21-Nov-02, to lugnet.robotics)
 
  Re: articulation points?
 
(...) >be honest have yet to come to a definitive answer. The (...) Opinion seems to be divided on the meaning of this term. In my field (computer graphics), I'd say that each joint in the mechanism had between zero and six degrees of freedom, but (...) (23 years ago, 21-Nov-02, to lugnet.robotics)
 
  Re: Jumping robot
 
Could a microscout be useful for this, or is extra intelligence needed to maintain balance? ----- Original Message ----- From: "Nick Tarleton" <nickptar@mindspring.com> To: <lego-robotics@crynwr.com> Sent: Wednesday, November 20, 2002 6:58 PM (...) (23 years ago, 21-Nov-02, to lugnet.robotics)
 
  Re: articulation points?
 
The main reason it would make sense to quote the total DOF is that is determines the volume the arm needs or is able to work in. For example imagine a snake-bot with a dozen 2 DOF joints. It can reach around objects to position it's effector. So it (...) (23 years ago, 21-Nov-02, to lugnet.robotics, lugnet.build.mecha, lugnet.technic)
 
  Re: Jumping robot
 
(...) Have it umbilically attatched to the RCX. Use pneumatics liberally. (23 years ago, 20-Nov-02, to lugnet.robotics)
 
  Why...
 
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ... is the minimum timeslice interval 5ms? I'm writing a program that needs a routine to be run every 1ms for a period of time. I did this by setting it as the timeslice handler, but then I needed to (...) (23 years ago, 16-Nov-02, to lugnet.robotics.rcx.legos)


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