 | | Re: best hummer out there
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I Agree. This thing is some serious ownage. Perfect representation of a Hummer H1. But there are also many good Hummer H2 models out there. (Including mine :) ) I will be posting it sometime soon... But this certainly is the best Hummer H1 model out (...) (19 years ago, 15-Apr-05, to lugnet.technic)
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| | Re: Compact dozer design
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(...) Well sort of. The application of torque is reversed - when steering a "1 motor per track" model, you only get 1 motor driving, when going straight you get 2. This is simply reversed in the adder/subtractor system. It's a small price to pay for (...) (19 years ago, 15-Apr-05, to lugnet.technic)
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| | Re: Compact dozer design
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(...) That does sound like an advantage. However if I'm not mistaken, it also means less torque because technically only one motor is driving the wheels. The other one is just for steering. ?? Nathan (19 years ago, 14-Apr-05, to lugnet.technic)
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| | Re: Compact dozer design
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(...) Nope - it means if you have two motors which are not perfectly matched (which they so very rarely are), you can still get a straight line. If you build a motor-per-track buggy, and drive it accross a long corridor, then without course (...) (19 years ago, 14-Apr-05, to lugnet.technic)
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| | Re: Compact dozer design
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(...) What exactly is the advantage of using the adder-subtracter design versus the motor-for-each-track design? Let me guess; does the adder-subtractor design produce slow changes in direction while the motor-for-each-track design only makes quick (...) (19 years ago, 14-Apr-05, to lugnet.technic)
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| | Re: Compact dozer design
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I built one of these myself - a while ago. The LDraw plans are at (URL) although I am yet to take some photos. My version could definately be made smaller. I intend to apply the principle to two modified servos in a non-Lego bot, although I will (...) (19 years ago, 14-Apr-05, to lugnet.technic)
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| | Re: My First MOC
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More movies and pix now online. (URL) Andrew Meyer (19 years ago, 13-Apr-05, to lugnet.robotics, lugnet.technic, FTX)
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| | Re: Compact dozer design
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(...) There appear to be 2 motors. Looking at this pic (URL) it appears the top motor drives one or other of the 8 tooth gears on the right (probably forward/reverse), and the bottom one drives the 8 tooth gear on the left (probably steering). The (...) (19 years ago, 13-Apr-05, to lugnet.technic)
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| | Re: Crawler Treads
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Thanks Andrew, it looks like those in the UK have to order these through commotion - pitsco only ship some items over here, although I think it is more to with TLC rules than anything else. It is a shame you dont see these items on the shop@home (...) (19 years ago, 13-Apr-05, to lugnet.technic)
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| | Re: Compact dozer design
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I must admit, it is not clear if the drive is actually driving the two tracks - in which case it will be two motors, or if it is simply driving the cylinders from the tracks - which wouldnt make a huge amount of sense, but is possible. A picture (...) (19 years ago, 13-Apr-05, to lugnet.technic)
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| | Re: Crawler Treads
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(...) I bought two of these new star wars set with the chain links (#7258) yesterday and I am very happy with the purchase. Each set not only comes with the coveted tread links, but 2 worm gears as well. The droids that are included are great for (...) (19 years ago, 13-Apr-05, to lugnet.technic, FTX)
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| | Re: t5
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(...) -TJ (19 years ago, 13-Apr-05, to lugnet.technic)
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| | Re: Compact dozer design
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(...) I can't figure out how that adder- subtracter device works. Are they using two motors or one? Do the differentials do all the work? (19 years ago, 13-Apr-05, to lugnet.technic)
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| | Re: This would work
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Hallo! I’m Tomasz Zajac. On Brickshelf I’m Speedmen89. I’m 15 years old and I from with Poland. I belong to only Polish club LEGO – www.lugpol.org. (URL) on steering and drive simultaneously with use standard brick I know since long ago, but I (...) (19 years ago, 13-Apr-05, to lugnet.technic)
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| | Re: Compact dozer design
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I dunno - but I really like the compact adder-subtractor drive. I have been messing with those a lot - and that is very small. -- (URL) - Build Robots (...) (19 years ago, 12-Apr-05, to lugnet.technic)
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| | Re: My First MOC
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As promised, here is a link for Brickshelf. There is a movie there too, but the lighting wasn't great (it was raining, and I was in my basement) so apologies. The robot tips in the movie because the floor it was on was slanted due to the drain in (...) (19 years ago, 12-Apr-05, to lugnet.robotics, lugnet.technic, FTX)
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| | Re: Crawler Treads
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Wish answered. Deep link: (URL) (19 years ago, 12-Apr-05, to lugnet.technic, FTX)
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| | Re: Huge Bridge?
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(...) This is becoming almost a habit! Steve (19 years ago, 12-Apr-05, to lugnet.technic, FTX)
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| | Re: Huge Bridge?
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(...) That would be my bridge. Thanks for your comments! No, it's not the record span. The longest span, to the best of my knowledge, is this 8.9 meter bridge: (URL) My bridge (spanning a modest 17' 3 1/8" (5.26 meters)) withstood about 5 hours of (...) (19 years ago, 12-Apr-05, to lugnet.technic, FTX)
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| | Compact dozer design
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This is an amazingly small and detailed design. The only question is- why did they not use 2 pistons to turn the blade? (URL) (19 years ago, 12-Apr-05, to lugnet.technic)
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