Has MR ever published an article on constructing a helix? THXTHX
You might find this link useful:
Yes they have, several over the years. Here are some links:
http://mrr.trains.com/how-to/nscale-insight/2011/09/helixology-for-n-scalers
They did one I really liked using threaded bar stock as the vertical supports.
Richard
And it really works well on several levels (pun not intended). Adjustments and changes are much easier.
I think the hardest part of building a helix is hiding its entrance.
Guide to helix and staging design is an Information Station PDF-download, and well worth the effort with a number of informative (past) Model Railroader articles. There is also a volume two. Note the tie-in of staging design along with helix design.