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Subject: 
Re: Roller Coaster runs on Monorail Track
Newsgroups: 
lugnet.technic
Date: 
Thu, 29 Mar 2007 16:07:00 GMT
Viewed: 
12125 times
  
In lugnet.announce.moc, Chris Phillips wrote:
   I have designed a minifig-scale roller coaster that can run on standard monorail track. Each car can carry up to four minifigs around a loop, and the cars can run independently or linked in pairs. (I haven’t tried longer trains yet...)



There are several ways to make rail for this coaster. The simplest is to use standard monorail track, although there can be some interference with the gear on the track. But (curved!) monorail track can also be connected back-to-back, the wheels riding on the edges of the two monorails, making it possible to create very smooth loops. From a ~4 foot peak, the cars easily complete the loop without derailing. I have also created track using Technic pin-in-tube construction, as well as with tiled brick and tiled SNOT-brick.



The last issue is to work out a reliable lift mechanism. I have a few ideas that go beyond the “string of 3,000 chain link elements” approach, but I’m open to suggestions.

Brickshelf gallery with building instructions.

It’s a neat design, and I like the idea of using monorail track to do smooth loops. 4ft is a hell of a lift to make out of LEGO though! I’d be happy with something smaller, even if it meant going without the loop.

Have you thought of fitting more wheels on the vertical spigots to act as rollers? I suppose you could have wheels underneath the rails too, using this method. It gets a bit bulky for minifigs, but I don’t know if you could get round the loop at a lower speed.

I’m interested in anything that can reduce the size of a roller coaster and make it more reliable. This was my mini one from LegoWorld last year. Whoever took these shots got a good close-up of the lifting mechanism:

http://www.brickshelf.com/cgi-bin/gallery.cgi?i=2179993

I tried using pneumatic tubing for the rails, but it just kept giving way. It was a bit too sticky too. Track System isn’t flexible enough to maintain a gradient, so I had to resort to making my own rickety stairs, which jam up quite often.

Jason R



Message has 1 Reply:
  Re: Roller Coaster runs on Monorail Track
 
(...) Thanks! I actually got the idea when I displayed a not-yet-working prototype coaster on the NELUG train layout last weekend. We posed the "broken" coaster in our amusement park with a working monorail (Airport Shuttle) running through the (...) (17 years ago, 29-Mar-07, to lugnet.technic, FTX)

Message is in Reply To:
  Roller Coaster runs on Monorail Track
 
I have designed a minifig-scale roller coaster that can run on standard monorail track. Each car can carry up to four minifigs around a loop, and the cars can run independently or linked in pairs. (I haven't tried longer trains yet...) (URL) There (...) (17 years ago, 29-Mar-07, to lugnet.technic, lugnet.announce.moc, FTX)  

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