Benchwork for an Ho helix or "Doughnut Delema" is a free Model Railroad Discussion Forum and photo gallery. We cover all scales and sizes of model railroads. Whether you're a master model railroader or just getting started, you'll find something of interest here.


Loveably weird
A little lad from way back in the hills came home one day and announced he was not ever going back to school because the teacher was an idiot!
"What makes you say that?" asked his Pa.
"Well," said the boy "Today the teacher started talking about Pi R squared, and everybody knows that pie are round!"


Well-Known Member
Staff member
Nice - he must now also have been darn old. I doubt too many teachers even know what that is, let alone teach it :)

new guy

Active Member
WHEN I go for a helix it WILL be in kit form! "Scratching" one seems daunting! I can't vouch for 1/4" but the 1/2" MDF I got is pretty sturdy and does not seem prone to "sag". You could always use their pattern with your own choice of material.

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