Yet another scaling question - math wizard needed...

[EvilTessmacher]

I've tried several of the conversion formulae I've seen here, but for some reason, I just can't figure this out. Maybe it's a blind spot.

First, the explanation:

I have a particular software package that I use for unfolding. It's called AvantaCad 3D and I use it because it gives me a PDF output when I use the command "Print Simple".

It allows me to select page size, but does not give me the option to tell it what size I want parts to come out.

What I mean is, in my design software, (sometimes I use SketchUp, and sometimes I use AllyCad) I send the STL file to AvantaCad, and make it unfold parts, and lay them out on a sheet to print. I like it because it gives fine lines at 400dpi resolution.

Anyway, in the margin of the PDF, I always get this "Printscale Factor" number. In this particular instance, it is 0.4062. I have fiddled with all of the settings, and I can't get it to print 1 to 1.

Now, the question:

What is the right formula to use to enlarge that 0.4062 to equal one?

Thanks

[Swampfox]

Your there, just solve for x.

x X .4062 = 1

Or x= 1/.4062.... 1 divided by .4062 is 2.46

2.46 x 100 = 246%

To check this .4062 x 2.46 = .999983 which is darn close to 1.

Swampfox

[EvilTessmacher]

Man, for the life of me I just could not come up with that.

I really, REALLY appreciate it, Swampfox!

Right in front of my beady little eyes... Geesh, I feel like an idiot now.