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(...) Cool idea. I've been working on a wheeled tank using the add/sub transmission discussed here. I have a small rotating turret on top of the beast, but hadn't yet figured out a good way to trigger the CyberSlam darts. (...) You bet! Someone said (...) (26 years ago, 2-Feb-99, to lugnet.robotics)
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| | Re: 360 deg. swiveling electrical connection
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I am not familiar with the cyberslam darts... Does it have to be electrical trigger (or are you planning to route something else - a sensor perhaps) ? If mechanical trigger is ok, perhaps you could use a lego axle up the center of the rotary joint. (...) (26 years ago, 3-Feb-99, to lugnet.robotics)
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| | RE: 360 deg. swiveling electrical connection
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The other options is to use a wire but not allow the turret to turn more than 180degrees either side of center, if you are at 179 and wish to go to -179 you have to go all the way back around rather than just nipping across those 2degrees. It's (...) (26 years ago, 3-Feb-99, to lugnet.robotics)
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| | RE: 360 deg. swiveling electrical connection
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(...) Give it enough wire and there's no reason you couldn't nip over those two degrees. On the theory of the more range the better, you could let the wire twist some, and get maybe +/-360 or more. Just have it re-center after every attack and you (...) (26 years ago, 3-Feb-99, to lugnet.robotics)
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| | RE: 360 deg. swiveling electrical connection
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I actually went and purchased a bungee chopper (8202) just to create a bungee launcher for the Lego counter-weight pieces. The 9v motors don't wind the bungee cord too well without some extreme gearing to increase torque but they really get the (...) (26 years ago, 3-Feb-99, to lugnet.robotics)
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| | Bungee weapons
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(...) Here's a tip... if you can find the old Blaster, rather than the Chopper, it's a much sturdier projecti... er, I mean, car. The Chopper has some serious weak links in the frame. If you must use the Chopper, I suspect the alternate model is (...) (26 years ago, 3-Feb-99, to lugnet.robotics)
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| | RE: Bungee weapons
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-----Original Message----- From: Daniel Miller [mailto:danielmi@ecn...urdue.edu] Sent: Wednesday, February 03, 1999 9:42 AM To: Lego Robotics Subject: Bungee weapons (...) wind (...) but (...) Here's a tip... if you can find the old Blaster, rather (...) (26 years ago, 3-Feb-99, to lugnet.robotics)
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| | RE: Bungee weapons
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You don't need multiple choppers to have a good magazine for the launcher...you just need to build a drop down loader. Rich (URL) sorry if this posted twice -----Original Message----- From: Daniel Miller [mailto:danielmi@ecn...urdue.edu] Sent: (...) (26 years ago, 3-Feb-99, to lugnet.robotics)
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| | Re: 360 deg. swiveling electrical connection
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(...) Daniel Miller wrote: (...) Well, if you use one of the long leads and set up the mechanics right, your turret could probably spin 'round a dozen times with no ill effects. Suppose your rotating assembly is a turret that turns both left and (...) (26 years ago, 3-Feb-99, to lugnet.robotics)
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| | Re: 360 deg. swiveling electrical connection
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Ben Kimball wrote in message ... (...) What about an axle with wires running along two of the groves (groves made by the cross section of the axle). You could have a two bands of thin metal sheeting wrapped around the axle. To each band you have on (...) (26 years ago, 4-Feb-99, to lugnet.robotics)
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| | Re: 360 deg. swiveling electrical connection
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Very ingenious use of Lego. I completely forgot about this method (borrowed from the real world). You will, of course, need to do this on each end of the axle. Can probably use either a thin piece of copper cut into strip to fit inside of bushing. (...) (26 years ago, 4-Feb-99, to lugnet.robotics)
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