--- In [email protected], Charles Weston <rotary-oy@...> wrote:
> Using a tape measure is not a very good idea --Â try to mark a 54 or 60 inch
> radius curve with a tape.
Hi Charles, Anyone who's worked in construction has no problem with using a
tape to swing curves. Just drive a nail at the radius point then hook the tape
on it( the common pocket tapes even have a little nailhead notch on them) then
hold your pencil against the tape at the desired radius and swing away. For
layouts where the radius point falls in an isle I just clamp or screw a
temporary board across the isle then drive the radius nail into it. If the
center falls inside a wall or other inaccessible place I'll make a template
from scrap sheet material or even cardboard by swinging the arc on the template
material then sawing it to the curve. If using a template some care must be
taken to make sure the centerline falls on the correct alignment and that it is
squared up with the tangent tracks coming and going.Templates placed end to end
without proper alignment can create unfair curves with unwanted angle
points.....Dave Branum
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