 | | GBC on Breakfast Television
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Hello to everyone & GBC addicts! I went To Breakfast Television on Tuesday, sept 13, to present the now VERY famous Great Ball Contraption (GBC). After the success in Brickfest, AND the smiles of KKK, I decided to introduce the GBC in Nova Scotia. (...) (19 years ago, 16-Sep-05, to lugnet.fun.community, lugnet.loc.ca.ns, lugnet.technic)
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| | Re: The Better Tosser
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(...) Wonderful! I can't wait to see the pictures (and, maybe this will get my butt moving on buildingh my own shooter module). One nice thing about shooters... that "input opposite the output" constraint ends up being not much of a constraint at (...) (19 years ago, 16-Sep-05, to lugnet.technic)
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| | The Better Tosser
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For my next GBC Module (Find out more about the GBC at www.teamhassenplug.org) I have been wotking on a ball tosser. I have come up with a design that shoots into a Hailfire Droid wheel 'funnel' put five feet away. (pics coming soon) I am wondering (...) (19 years ago, 16-Sep-05, to lugnet.technic)
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| | Re: Torsen Differential
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(...) some traction with 1 wheel off the ground. A wheel only "locks" when it loses traction, when both wheels have traction it works like a standard differential. There is a small explanation here: (URL) I don't seem to be able to view that pic - (...) (19 years ago, 15-Sep-05, to lugnet.technic)
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| | Torsen Differential
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What exactly is the advantage of a Torsen differential design? Does it eliminate slip, or is it just a more solid design? (URL) (19 years ago, 15-Sep-05, to lugnet.technic)
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| | Re: Pneumatic "One Leg at a Time" Robot Circuit
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(...) I've come up with three AND gate technologies so far. Also I've come up with three OR gate designs too (those are differential output, plus I have a single pressure OR too). I've only come up with one differential XOR and a single pressure (...) (19 years ago, 15-Sep-05, to lugnet.technic)
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| | Re: Pneumatic "One Leg at a Time" Robot Circuit
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(...) Not many efficient ones, but it very much depends on the type of logic, whether it's differential (a pressure hose and a leak hose to a cylinder) or single (a few switches daisy-chained for an "all legs up" condition) If anyone were to patent (...) (19 years ago, 14-Sep-05, to lugnet.technic)
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| | Re: Pneumatic "One Leg at a Time" Robot Circuit
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(...) How many different 'designs' could one come up with for an AND gate in LEGO pnuematics anyway? -Rob www.brickmodder.net (19 years ago, 14-Sep-05, to lugnet.technic)
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| | Re: Pneumatic "One Leg at a Time" Robot Circuit
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(...) Hi Sigurd, Maybe I can do it with fewer pneumatic parts? Kev (19 years ago, 13-Sep-05, to lugnet.technic)
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| | Re: Pneumatic "One Leg at a Time" Robot Circuit
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(...) I understand that leg 0 is moved up forward then down, leg 1 is moved up/forward/down, leg2 is moved up/forward/down, leg 3 is moved up/forward/down, and finally leg 0, leg 1, leg 2 and leg3 are moved back. I don't quite understand why you (...) (19 years ago, 13-Sep-05, to lugnet.technic)
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| | Re: Scrapers
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(...) Thanks Steve. Another thought- You know those long oval-shaped arms (one end bigger then the other) that connect the front half to the rear half? I bet there is a chain in there that drives the auger (or blades). Maybe it is the front engine (...) (19 years ago, 13-Sep-05, to lugnet.technic)
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| | Re: Pneumatic "One Leg at a Time" Robot Circuit
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(...) (SNIP) (...) This one has moved away from my usual differential logic. Each leg module has a flip-flop for the foot and hip, which does 3 out of 4 movements and waits for the fourth to be done all legs together. I see how single switch AND (...) (19 years ago, 13-Sep-05, to lugnet.technic)
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| | Re: Scrapers
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(...) I've never read anything to support this supposition. I've always thought scrapers mainly use mechanical transmissions. I know Caterpillar likes to put mechanical transmissions in things where other makers only use diesel-electric. I'm sure (...) (19 years ago, 13-Sep-05, to lugnet.technic)
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| | Re: Pneumatic "One Leg at a Time" Robot Circuit
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"sigurd" <sigurd18@hotmail.com> wrote in message news:IMrs0L.18LJ@lugnet.com... (...) Didn't the Star Wars AT-ATs move one leg at a time? (Going by memory sometimes produces weird results) Rob www.brickmodder.net (19 years ago, 13-Sep-05, to lugnet.technic)
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| | Re: Pneumatic "One Leg at a Time" Robot Circuit
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(...) hi, why do you wanne build a thing that lifts one leg a time?.... i did it but it dont have any advanges. it isn't much more stable. it isn't faster (my cat 343 was not to slow) but stil i don't see any inprovments. the only thing is that it (...) (19 years ago, 13-Sep-05, to lugnet.technic)
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| | Re: Pneumatic "One Leg at a Time" Robot Circuit
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(...) Hi Mark, Now I know what to build next..... a four legged walker that lifts one leg at a time. On paper it looks like I can get one made for 1+2n pistons and 2+4n switches. This assumes that legs mechanically lock when weight bearing. I don't (...) (19 years ago, 13-Sep-05, to lugnet.technic)
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| | Pneumatic "One Leg at a Time" Robot Circuit
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A while ago I saw an electric robot on TV that had 6 legs in 2 rows of 3 and moved one leg at a time forwards (lift, forward, down), then all back together. I thought this is an ideal application for Lego pneumatics. I don't still have it built, but (...) (19 years ago, 13-Sep-05, to lugnet.technic)
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| | Re: Scrapers
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Nate- Here's a site I found with info on scrapers. (URL) (Sorry I couldn't be of much help here) (19 years ago, 13-Sep-05, to lugnet.technic)
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| | Re: Scrapers
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(...) Is it possible they have a hydraulic drive controlled by only one engine? When the scraper bends down in the middle, it shortens the distance between the front and rear wheels, and visa- versa. That would mean that the axles would be turning (...) (19 years ago, 13-Sep-05, to lugnet.technic)
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| | Re: Walking Excavator KAISER S2
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(...) Play well, Jacob (19 years ago, 13-Sep-05, to lugnet.technic)
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