calculations to rescaling?

[Shin_kazama]

okay, lets say from 1/100 to 1/72,

from 1/144 to 1/72....


things like that,,
and i am not good at math...
sorry..

[lepton]

22 views but no response .. OK I'll give it a go.

Dear Shin kazama,

To go from a model originally scaled at 1:100 and produce a 1:72 build, you need to ENLARGE the printout by a factor of 1.39, or 139%

To go from 1:144 to 1:72, you need to ENLARGE the printout by a factor 2.0, or 200%, or double size.

Hope that is what you wanted.

Lepton

[Lex]

Lepton's correct, put it simply, it's just the ratio between the scales. No complicated maths involved!

[SCEtoAux]

Yep.
From 1/100 to 1/72 divide 100 by 72 and you get 1.39 so it would be 139% of the original.
From 1/72 to 1/100 divide 72 by 100 and you get 0.72 so it would be 72% of the original.

From 1/144 to 1/72 divide 144 by 72 and you get 2.00 so it would be 200% of the original.
From 1/72 to 1/144 divide 72 by 144 and you get 0.50 so it would be 50% of the original.

Here is a simple calculator you can download and use for some scale calculations.
Scale Master Calculator

A note on the site about a feature of the calculator:

I've added a Scale Conversion form that allows you to take a measurement in one scale, provide the scale you wish to convert to, and get your measurement in the new scale.

[logicman]

Hi, Shin kazama.

There's a really great scale conversion chart here:

Tech Tips: Scale Drawings Conversion Chart