WilliamH

Track Designer (yes that old war horse) tracks monorail height differences, not 3D but will do the job Yes William (Previous editor of BrickIssue)

Both a 90-degree cross-track and a Y-switch were patented - http://www.freepatentsonline.com/5087001.pdf Also, a "diesel loco" type chassis was patented - Fig 23, Page 9 - http://www.freepatentsonline.com/4861306.pdf If you want to see what the inside of a monorail switch looks like - I can save you the effort of ripping one open - http://www.flickr.com/photos/whoward69/sets/72157624484843846/with/4789445103/ And for a discussion of how they work and what can go wrong - http://www.brickish.org/members/files/whoward/MonorailSwitchAnatomy.doc HTH William

Thanks for the reference. Pictures of the motors in-situ on my 1/6th of the GWLTC layout at STEAM last year William