Haddock51 Posted February 27, 2013 Posted February 27, 2013 (edited) In addition to the large 9V Climbing Wall & High Speed Track project, I will set up a kind of experimental layout to push some of the 9V limits even more. This will consist of two spirals, each with 5 1/2 360 circles up to approx. 100 cm above ground level. The towers will be connected with a bridge at top level. Given the narrow curves and maintaining a height between the rail-levels of approx 20 cm, the inclination will be close to 10 percent and the circles rather inclined. For safety reasons, the track will be mounted on masonite. The whole track of approx. 26 meters will have 2x5 connection points and be operated with 2 9V transformers. Obviously, only small and light trains will be able to climb this track, if at all .... Hopefully, my own designed "Skyrunner" with 2 9V engines will make it ... (see picture below) I have been looking around for feasable bridges (length approx. 1 meter), even at Lego World 2013 in Copenhagen, but haven´t really found "the" bridge yet (most of the bridges in Copenhagen were simply too large and difficult to downsize). For obvious reasons it has to be a suspension-bridge with a span of approx. 1 meter. Any hints/pictures that could help? Edited February 27, 2013 by Haddock51 Quote
LegoSjaak Posted February 27, 2013 Posted February 27, 2013 (edited) This picture is really way too small to see something that can be helpfull for what you mean.. isn't there a bigger picture?? Here is a bridge i created myself! Edited February 27, 2013 by LegoSjaak Quote
Haddock51 Posted February 27, 2013 Author Posted February 27, 2013 This picture is really way too small to see something that can be helpfull for what you mean.. isn't there a bigger picture?? Here is a bridge i created myself! Very nice pictures indeed. A solid piece of construction! However, given the fact that the bridge will be approx. 1 m above ground level, it cannot have a bridge-pillar. That´s why it has to be a suspension-bridge. Quote
bricks n bolts Posted February 27, 2013 Posted February 27, 2013 Super nice bridge LegoSjaak! That monkey is asking for trouble What are the cross beams made from? Quote
LegoSjaak Posted February 27, 2013 Posted February 27, 2013 Super nice bridge LegoSjaak! That monkey is asking for trouble What are the cross beams made from? Those cross beams are actually large bridgeparts from the 7900 bridge transport set. I was able to buy 3 of those sets second hand, so i could construct a bridge out of 3 x 4 = 12 bridge-pieces. The length of the bridge is approximately 1.3 meters.. Greetz, LegoSjaak Quote
The Reclaimer Posted February 27, 2013 Posted February 27, 2013 I have got to say that this bridge is awesome. On topic: the best way to build a bridge with a span of 1 meter or more is to add layers of alternating bricks and plates for strength as a basic frame, then build it up with details, all the time making sure it doesn't sag. PS: Call Ace Ventura, we have a monkey problem. Quote
LegoSjaak Posted February 28, 2013 Posted February 28, 2013 Very nice pictures indeed. A solid piece of construction! However, given the fact that the bridge will be approx. 1 m above ground level, it cannot have a bridge-pillar. That´s why it has to be a suspension-bridge. The pillar is not necessary...it is one sturdy pieces of technic beams and bridgepieces... The pillar is only for the realistic part....So you could still use it for a higher bridge! I have got to say that this bridge is awesome. On topic: the best way to build a bridge with a span of 1 meter or more is to add layers of alternating bricks and plates for strength as a basic frame, then build it up with details, all the time making sure it doesn't sag. PS: Call Ace Ventura, we have a monkey problem. Haha, i got that monkey in a second hand brick-box with all kinds of sets and parts once.. Don't know where to leave it in my layout..so i put it on the bridge.. it might turn into (track-kill) one day (road-kill, but then on tracks...) The bridge bends just a tiny bit.. but if both ends are connected to a pillar orso, then it will be really functional as well! Greetz, LegoSjaak Quote
Luke_likes_Lego Posted March 2, 2013 Posted March 2, 2013 Haha, i got that monkey in a second hand brick-box with all kinds of sets and parts once.. Don't know where to leave it in my layout..so i put it on the bridge.. it might turn into (track-kill) one day (road-kill, but then on tracks...) The bridge bends just a tiny bit.. but if both ends are connected to a pillar orso, then it will be really functional as well! Greetz, LegoSjaak "I don't think the empire had monkeys in mind when they designed her Chewie" LLL Quote
Hrw-Amen Posted March 2, 2013 Posted March 2, 2013 Is there any reason you cannot build a suspension bridge? OK, it would have to have the two towers, one at each end. You would need some cabling for which you would have (I guess, unless you can think of anything else?) to use some suitable string which may not be an option if you just want LEGO bricks, but I doubt anyone would be giving you too much of an issue about string! It would not have to be that big a tower if it only was 1.3m long, but I think the only issue would be having to attach the load bearing ropes onto the lead up on each side makeing your actual bridge structure 2.6m long even though half of it would be on land. Quote
Haddock51 Posted March 3, 2013 Author Posted March 3, 2013 Is there any reason you cannot build a suspension bridge? OK, it would have to have the two towers, one at each end. You would need some cabling for which you would have (I guess, unless you can think of anything else?) to use some suitable string which may not be an option if you just want LEGO bricks, but I doubt anyone would be giving you too much of an issue about string! It would not have to be that big a tower if it only was 1.3m long, but I think the only issue would be having to attach the load bearing ropes onto the lead up on each side makeing your actual bridge structure 2.6m long even though half of it would be on land. A couple of weeks ago, I watched a train camera video on Youtube from Lego World 2012. On this video you can see a bridge construction (the bridge was actually on ground) that reminded of a suspension bridge - all built in Lego. When I visited Lego World 2013 in Copenhagen recently, I met the guy wo filmed the sequence. Unfortunately, the bridge doesn´t exist any longer, and they couldn´t find any pictures in their own archives. When it comes to the suspension concept, I am not so sure it has to be "for real" with ropes etc. The bridge could be strengthened beneath one way or another, even without Lego. One large bridge in Copenhagen was built with Lego Technique parts and turned out to be very stable. So I guess what I am looking for is more the design rather than the functionality. Quote
alainneke Posted March 3, 2013 Posted March 3, 2013 A couple of weeks ago, I watched a train camera video on Youtube from Lego World 2012. On this video you can see a bridge construction (the bridge was actually on ground) that reminded of a suspension bridge - all built in Lego. When I visited Lego World 2013 in Copenhagen recently, I met the guy wo filmed the sequence. Unfortunately, the bridge doesn´t exist any longer, and they couldn´t find any pictures in their own archives. When it comes to the suspension concept, I am not so sure it has to be "for real" with ropes etc. The bridge could be strengthened beneath one way or another, even without Lego. One large bridge in Copenhagen was built with Lego Technique parts and turned out to be very stable. So I guess what I am looking for is more the design rather than the functionality. Last year, the Dutch 'Hanzelijn' (a new railway between Lelystad and Zwolle) was officially opened at Legoworld Zwolle. The bridge that lets this railway cross the river IJssel is called 'Hanzeboog', and a brick-built version was present at Legoworld: More pictures: http://www.hanzelijn-hattem.nl/foto/548 Quote
Electricsteam Posted March 3, 2013 Posted March 3, 2013 Have you ever thought of a elevator system or a rack railway system for the steeper grades? Rack railway link. http://en.wikipedia.org/wiki/File:SMR_Axle_on_display_at_Llanberis_05-07-24_20.jpeg Quote
Haddock51 Posted March 3, 2013 Author Posted March 3, 2013 (edited) Last year, the Dutch 'Hanzelijn' (a new railway between Lelystad and Zwolle) was officially opened at Legoworld Zwolle. The bridge that lets this railway cross the river IJssel is called 'Hanzeboog', and a brick-built version was present at Legoworld: What a beautiful bridge!!! Thanks Alainneke! Edited March 3, 2013 by Haddock51 Quote
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