Re: Chivers / Colonial HOn30 VR Na class kit
The NGDU plan is to 1/48. I checked my copy with a scale-rule.
The AMRA plan is like you described, drawn to fit onto an A4 page.
Sound advice on any published plan is to chech dimensions with a ruler!
--- In email@example.com, "" <thirtyinchfan@...> wrote:
> ----- Original Message -----
> From: charles schuster [mailto:chasschuster@...]
> > Ther best plan is in the "Narrow Gauge Down Under" magazine #10,
> > Winter/Spring 2000. This detailed plan is to 1/48 Scale but could
> > photocopy reduced to whatever scale you work in.
> A warning here - if memory serves me right this plan is not to 1/4"
scale but is reproduced to some close but undescribed scale. But it
would be an easy matter with calculator and measuring device in hand
to work out the scale, then work out the ratio needed to reproduce it
to the desired scale.
If you send me your snail mail address off-list I can send you a copy
of a plan of the "nA".
--- In firstname.lastname@example.org, "glenn_howe" <glenn_howe@...>
> Thanks for your response guys, does anyone have any tips for scratch
> building an NA!? I'm not a rivet counter, just as long as I get the
> overall proportions looking right and it runs slow & smooth makes me
> happy - can anyone suggest a motor & gearbox combo or a source for a
> Glenn Howe.
- I agree, Michael
I've used plans from a variety of sources for articles in NGDU,
convention notes, etc., and on the CaneSIG website... and found that
all drawings, regardless of source, amateur or professional, need to
be verified with a steel rule.
Sometimes the 'error' is simply the result of fitting it to the page,
at other times it can result from scaling errors in the hardware we
are using. For example, my fairly expensive flatbed scanner does not
scan all portions of an image equally... the equivalent of the
problems that we have with parallel lines when taking a photo with a
As well, our computer-based drawing programs allow us to introduce
errors that are different from the errors introduced by hand drawings.
I recently drew the plans for a small building, for example, and
assembled components down the length of the building... sometimes
using a copy/paste where the elements (windows) were identical. I
ended up having to do some juggling to fit everything in as the line
widths involved had added an extra six inches to the length of the
wall. I should have been more careful, but if I hadn't caught the
error I could have ended up with front and back walls of different
>The NGDU plan is to 1/48. I checked my copy with a scale-rule.
>The AMRA plan is like you described, drawn to fit onto an A4 page.
>Sound advice on any published plan is to chech dimensions with a ruler!
A C Lynn Zelmer, Coordinator
Box 1414 Rockhampton Qld 4700 Australia