Helix Design

Reason #273 why I love the internet: I ran across a post on the Model Railroader forums that shows an ingenious design for helix construction. The design uses threaded metal rods for support, with nuts to set the height of the roadbed at each level. I really like this design because it allows you to adjust the height of the roadbed as you go to maintain a precise grade. I think this is the way I'll go with my mini-helixes, especially since I'll be dealing with tight clearances between levels. Here's a link to the forum post:

http://www.trains.com/TRC/CS/forums/730861/ShowPost.aspx