Layouts and layout building

Benchwork, scenery, track, and more. If you're building a scale model train layout, this is where to go. If you're new here, please read our forum policies.

Last post 02-15-2008 12:18 AM by HarryHotspur. 16 replies.
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02-14-2008 10:38 PM In reply to
Offline JulesB
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Joined on 11-07-2007
Posts 106

Re: How can you measure the radius of a curve at any given point IF the curve is NOT a constant radius?

 HarryHotspur wrote:

 

 e.g. the radius of part of an easement.

You can find all kinds of fancy formula.

First when you draw your radius, keep it 1/2" away from the straight section your comming off of. Other wise you can't create a transition. That goes for both ends of the radius! 

I use a fishing pole tip end. I just keep the big part in line with the straight section i'm comming off and bend the tip around to the other straight section or where ever I want to end the transition. I use nails to hold the butt end in place before bending and something heavy or nails at the tip behind the tip line guide. Use the pole to trace your transition line.

May sound stupid but if you look at a fishing pole natural bend It's a transition curve.

Guy's ask, " How did you do such nice transitions?".

Jules

 

02-15-2008 12:18 AM In reply to
Offline HarryHotspur
Not Ranked
Joined on 10-06-2004
Posts 608

Re: How can you measure the radius of a curve at any given point IF the curve is NOT a constant radius?

Thanks Phoebe. That's exactly what I wanted to know. Next time I'll try to word my question better. BTW, I do appreciate everybody's responses.
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