 | | LEGOdometer —Shaun Sullivan
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| | | As is my tendency, here’s an absurdly long treatise describing the development of a LEGO Train Odometer Car (a.k.a. the “LEGOdometer”). (URL) A Little Background. After religiously attending them for several years, I stopped going to LEGO train (...) (16 years ago, 4-Aug-08, to lugnet.announce.moc, lugnet.technic, lugnet.trains, FTX) !!
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| | | | | Re: LEGOdometer —Philippe Hurbain
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| | | | | Very impressive! I don't know what is the most amazing: the odometer itself or the extensive write-up ;o) Would you have more details (MLCad?) of the gearing/ratcheting between dials? And BTW, did you see this: (URL) (16 years ago, 5-Aug-08, to lugnet.technic, lugnet.trains)
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| | | | | | | Re: LEGOdometer —Shaun Sullivan
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| | | | | | (...) Thanks! Both were fun ;) (...) I don't yet, though I can easily do that. The 4-spoked technic joiners, when turned, rotate the 16T gear at the opposite end of the dial. That gear then connects to two idler gears which drive a 40T gear; that (...) (16 years ago, 5-Aug-08, to lugnet.technic, lugnet.trains)
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| | | | | | | | Re: LEGOdometer —Philippe Hurbain
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| | | | | | | (...) It would certainly help my slow mind ;o) Though I think I got it through your explainations. (...) Very elegant and parts savvy, but I am not sure it would provide a design as compact as yours. (...) Sorry to disturb you ;o) Philo (16 years ago, 6-Aug-08, to lugnet.technic, lugnet.trains)
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| | | | | | | | Re: LEGOdometer —Mike Hatton
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| | | | | | | (...) I'd love to see what you come up with! however I fear Philo may be right about it being too large. Your mechanism is shorter at 3 studs (2 cogs and a support) my chain precession drive is 4 studs long. Also the precession mechanism needs 9 (...) (16 years ago, 9-Aug-08, to lugnet.technic, lugnet.trains)
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| | | | | | | | Re: LEGOdometer —Mark Chittenden
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| | | | | | (...) Even with that explaination, I just can't seem to get the spacing and the gearing right between the dials. If you have the time, please, I would like a visual aid of the between walls and the between-dials gearing. When I first saw this, I (...) (14 years ago, 26-Mar-10, to lugnet.technic, lugnet.trains)
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| | | | | Re: LEGOdometer —Jean-Pierre Manalo
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| | | | | (...) -- Major Snippage! -- (...) Awesome MOC! It was interesting reading about the process you went through in developing this vehicle. Thank you for sharing this fantastic work with everyone here. Cheers, J.P. Manalo (16 years ago, 5-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | Re: LEGOdometer —Ronald Vallenduuk
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| | | | | (...) <snip> Great idea! Tempting to build something similar for our next show... The only disappointing part of the story is that it took a number of days of computing power to come up with a solution that doesn't use computing power ;-) (16 years ago, 5-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | | | Re: LEGOdometer —Shaun Sullivan
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| | | | | | (...) Tom Atkinson pointed out that same thing ... it's something that never even struck me while I was working on it. The irony just makes it all the more ridiculous, in a fun way! (16 years ago, 5-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | Re: LEGOdometer —Duane Collicott
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| | | | | (...) Insane. Amazing. Shock. Awe. (and Spotlight.) (16 years ago, 5-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | Re: LEGOdometer —David Laswell
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| | | | | (...) Interesting. I thought this might be interesting to use in our displays...until I read that it binds up in reverse. When we lose a car for whatever reason (often some young kid's hand straying where it ought not to), we usually recouple by (...) (16 years ago, 5-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | | | Re: LEGOdometer —Shaun Sullivan
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| | | | | | | (...) That's something I hadn't considered. Fortunately, unless it's run backwards for a long time, it probably won't be an issue. It takes a good while to take up the lash in all of the gears in the opposite direction; the overall gear reduction is (...) (16 years ago, 6-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | | | | | Re: LEGOdometer —Frank Filz
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| | | | | | | | | (...) A differential might have other problems. I seem to recall that use of differentials was explored in geared locomotives (such as Shay, Climax, and Heisler), and was abandoned because the differential caused power loss in curves. (reference (...) (16 years ago, 7-Aug-08, to lugnet.technic, lugnet.trains)
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| | | | | | | | | | | Re: LEGOdometer —David Laswell
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| | | | | | | | | | (...) Well, if a real train hits curves in any manner similar to how a LEGO train does, then the inside wheel will probably lift up enough to at least slip on the rail, which would result in that very effect. On the plus side, as it loses power, it (...) (16 years ago, 7-Aug-08, to lugnet.technic, lugnet.trains)
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| | | | | | | | | Re: LEGOdometer —David Laswell
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| | | | | | | | (...) True, but then you're losing the count on some of the distance traveled. I thought of a better option to all of this, though. I can't remember who it was, but someone (don't even ask me to remember who, or where to find this) came up with a (...) (16 years ago, 9-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | | | Re: LEGOdometer —Benn Coifman
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| | | | | | (...) First off, "wow!" A great idea, what sounds to be a very thorough design (and documentation), and an aesthetically pleasing package. A few thoughts, suggestions, and so forth. First, while the videos are impressive, I wonder if the performance (...) (16 years ago, 9-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | | | | Re: LEGOdometer —Mark Peterson
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| | | | | | This would make a nice article for RailBricks and possibly with some instructions. M (16 years ago, 9-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | Re: LEGOdometer —Bryan Wong
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| | | | | (...) Your "LEGOdometer" is amazing! I especially liked hearing about the design process and the fact that the final product is purely mechanical. I'd never be able to design something like this... -Bryan (16 years ago, 5-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | Re: LEGOdometer —Scott Lyttle
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| | | | | Shaun, Impressive work, both in construction and the write up! Welcome back to the fold of trains (at least for a little bit)...did you know that the next National Train show (that ILTCO has been particpating heavily since 2005) will be in Hartford (...) (16 years ago, 5-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | | | Re: LEGOdometer —Shaun Sullivan
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| | | | | | (...) Yep, I heard about that a couple of months ago ... I'm looking forward to it and plan on being there. It'll be great to participate in a show that also has lots of representation from clubs outside of New England! (16 years ago, 6-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | Re: LEGOdometer —Fernando A. Conchinhas Correia
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| | | | | A nice explanation and reading. A better MOC. Also intend to return later and read it more carefully. It is extensive, to get everything at first. ;) (16 years ago, 5-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | Re: LEGOdometer —Timothy Gould
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| | | | | (...) --snip (as is my own tendency ;) )-- Wow. I imagine if I had a clue how to build technic there'd be a few more wows but you can tattoo me impressed as is. Tim (16 years ago, 6-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | Re: LEGOdometer —Magnus Lauglo
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| | | | | Shaun, OK, I'm not a train guy and or even a moderately skilled Technic guy, but it's easy to see that this is officially ridiculously awesome. I've become interested in incorporating Technic functionality into minifig scale MOCs, but I don't think (...) (16 years ago, 6-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | Re: LEGOdometer —Doeg Rodriguez
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| | | | | (...) Great work sir! You had me at the counter mechanism, but making it a train car, wow! Cheers DRS (16 years ago, 7-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | Re: LEGOdometer —David Simmons
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| | | | | Hey Shaun, That's so freakin' crazy awesome insane mega uber brainy bada**! I tip my Acme Brain Massager to you, sir! Dave S. (16 years ago, 7-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | Re: LEGOdometer —Stump Dunn
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| | | | Nice box ! I ran most ratios through a pathetic microsoft product to derive a comparible metric read-out for those that made the transition from the stone age. put simply: 1 1:12 3 20:36 1 16:24 produces 1:104.9 at 95.5mm per rotation or for every (...) (16 years ago, 13-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | | Re: LEGOdometer —David Laswell
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| | | | | (...) Don't you mean those who reverted back to the stone age? I mean, the metric system is based entirely on being able to calculate stuff using your fingers, where the Imperial System requires better multiplication skills than your average monkey (...) (16 years ago, 13-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | | | Re: LEGOdometer —Stump Dunn
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| | | | | | (...) Beats a system based entirely on units of toes ! Steve (16 years ago, 13-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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| | | | | | Re: LEGOdometer —Shaun Sullivan
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| | | | (...) I ran my VB program and came up with the following: 7 x 20:36 7 x 16:24 which produces an error of 0.991 meters per kilometer. Of course, packaging that many gears is probably a bit challenging ... but I'll bet you can do it ;) (16 years ago, 13-Aug-08, to lugnet.technic, lugnet.trains, FTX)
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