[ebaykal]

Hi David,

Yes indeed NOCH do many versions of it, both in N and HO. Below is one of their N sprials.

Cheers
Baykal

 

[ebaykal]

Hoarp001,

Very good indeed.

I am also in the brink of constructing one myself.

Questions:

1) Did you use R2 and R3 or R1 and R2 radius ?

2) Seems like you have reached the top exit with 3 loops (assuming you are gong to stop there). What is the total height from ground zero to top exit ?

3)The thickness of the plywood you used?

4) and how on earth did you have it cut so smoothly? I can hardly see any joints where two parts meet.

5) finally the slope angle. Did you calculated it or was it a trial and error case?

Thanks
Baykal