Helix

[rogertra]

Ali;
Listen to Joe.  He has some good points, and-again, my opinion-the helix will be a lesson in frustration unless you have some pretty good experience in either model railroading, carpentry, or both. Or have masochistic tendencies...  I promise that, for a helix you will need both.
Rich C.

Yes, listen to Joe.  I've built a helix, a herniated helix into the bargain.  But I also build stage scenery as part of my living so I do have the required carpentry skills and access to the power tools that made the task easier.  I built it as a kit in a fully equipped workshop.  Yes, the helix was complicated so unless you have the carpentry skills, I'd think twice about it.