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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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(...) 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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| | Re: Walking Excavator KAISER S2
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(...) (URL) ) I see you've used two cylinders together in several functions. How have you kept them straight whist avoiding strain on the nozzles? There's a new piece in the 8421 crane that does the job now. Mark (19 years ago, 12-Sep-05, to lugnet.technic)
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| | Walking Excavator KAISER S2
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Hallo My name is Beat, and I live in Switzerland. Forwards approx.. one year has I that Lego build rediscovered. My first MOC after the Dark ages is a walking excavator, "KAISER S2". Pictures can see you in my Brickshelf Gallery: (URL) realized the (...) (19 years ago, 12-Sep-05, to lugnet.technic) !
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| | Re: Scrapers
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(...) needed in loose soils than in hard, compacted soils. I guess being such a big machine, it has a proper control system, such that power to each axle is controlled from each axle's engine with a combined traction control system. The cut-away (...) (19 years ago, 12-Sep-05, to lugnet.technic)
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| | Re: Scrapers
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(...) I forgot to thank Mark Bellis and John Fors for their info yesterday. Which engine drives the rotating blades? Is one engine for hydraulics and one for driving the wheels? Or is one engine for the rear half and one for the front? Which engine (...) (19 years ago, 12-Sep-05, to lugnet.technic)
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| | Re: Mana Cat
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Congratulations Eric! Maybe this is the dawn of those outside of the hobby taking Lego seriously as a tool for creating sculptures and robots. I will admit being disappointed to see such a promising project left, but then I am still heartened to (...) (19 years ago, 12-Sep-05, to lugnet.technic, lugnet.robotics, lugnet.build.mecha)
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| | A brand new web page, with 7 creations to go with it!
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Well, after 5 years and almost 2 million page views, I decided that brickfrenzy.com's late 1990's design had worn out its welcome. So I set out to design a new one. But since I am no good with PHP and CSS, I needed help. So with the assistance of a (...) (19 years ago, 12-Sep-05, to lugnet.announce.moc, lugnet.space, lugnet.town, lugnet.technic, lugnet.build.vignette, lugnet.publish, FTX) !!
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| | Re: Mana Cat
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Thanks guys, I wanted to say, I have been avoiding LUGNET, but I'm glad I came here to read these two nice replies. There are others who only come out when there is something nasty to say. I also wanted to mention that I have been certified as an (...) (19 years ago, 11-Sep-05, to lugnet.technic, lugnet.robotics, lugnet.build.mecha)
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| | Re: Scrapers
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(...) Thank you all for the pics. The one Rosco sent was the type I was looking for. There are 2 types that I can see. One has a hollow tub in the middle and collects the dirt. The other is basically the same thing but with tread-mill-type blades in (...) (19 years ago, 11-Sep-05, to lugnet.technic)
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| | Re: Mana Cat
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(...) I have to say, I'm fairly well baffled by what you were up to here, but it sure looked cool. Having been to Brickfest now, I have an appreciation for the importance of seeing MOCs in person, particularly mechs. Did you know the cockpit on (...) (19 years ago, 11-Sep-05, to lugnet.technic, lugnet.robotics, lugnet.build.mecha, FTX)
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| | Re: Scrapers
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(...) I guess you can't really see the details in this pic: (URL) a pretty good photo here: (URL) some others probably too if you poke around that site. The tub is raised and lowered using the vertical cylinders just behind the front wheels. Larger (...) (19 years ago, 10-Sep-05, to lugnet.technic)
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