scaling down a drawing... help needed

[Sulla]

I am making a scale paper model and I drew it in illustrator in 1:1 scale. I want to scale it down to an architect's 3/4 scale which is 1" = .75" or 1:16 I believe.

What percentage should I use to turn my 1:1 to 3/4 scale? My math skilz is fail, please help.


this 1' = 1'
to
this 1' = .75"

 

[Sulla]

I think this should be moved to the scale model section, now that I think about it. It started as a general program use issue, but it is to make a scale paper model...

Any mods who see this, feel free to move it.

 

[Sulla]

simplified, 8.25 is what percent of 132?

 

[exoray]

6.25%...

 

[Sulla]

nm - i figured it out

 

[Sulla]

thanks exoray

 

[DaddyfromNaboo]

I am making a scale paper model and I drew it in illustrator in 1:1 scale. I want to scale it down to an architect's 3/4 scale which is 1" = .75" or 1:16 I believe.

What percentage should I use to turn my 1:1 to 3/4 scale? My math skilz is fail, please help.


this 1' = 1'
to
this 1' = .75"

Yes, you already had your percentage there, 3/4 =0.75= 75%

 

[MonsieurTox]

As a side note, 3/4 scale is not 1:16 but 12:16...

 

[exoray]

As a side note, 3/4 scale is not 1:16 but 12:16...

The 3/4 scale on a architecture scale is 1:16 full scale, as 3/4 inch equals 1 foot on said scale...

Yes, you already had your percentage there, 3/4 =0.75= 75%

There was a typo in what he posted, what he meant was 1 foot = 0.75 inches that is how architecture scales are divided and scaled, whatever fraction of an inch equals 1 foot...

 

[DaddyfromNaboo]

The 3/4 scale on a architecture scale is 1:16 full scale, as 3/4 inch equals 1 foot on said scale...

Huh?!
That is very misleading.

There was a typo in what he posted, what he meant was 1 foot = 0.75 inches that is how architecture scales are divided and scaled, whatever fraction of an inch equals 1 foot...

So 1:50 is different in the imperial system to what it is in the metric system?!

Well, to my surprise it apparently is:

Architect's scale - Wikipedia, the free encyclopedia

Very confusing, I must say. So is our beloved studio scale 1:24th imperial scale or metric? I´d have sworn that it is metric?!

 

[Sulla]

sorry for the cans of worms. I figured the math out and all I needed to do was scale my drawing to 25% of original and then an additional 25% of the scaled original... Make sense?

And thanks for the clarification Exoray, you hit the nail on the head.

 

[division 6]

Get an drafting scale ruler (triangular architect ruler), it's very handy for all kinds of projects.

You should be able to find them at any office supply or art store.

 

[Sulla]

Get an drafting scale ruler (triangular architect ruler), it's very handy for all kinds of projects.

You should be able to find them at any office supply or art store.

They are good tools! I own 3! One from high school Drafting and Advanced Architecture class, one a steel promo from work, and one I bought when I couldn't find the other two. But all three sit in my drawer now.

 

[exoray]

So 1:50 is different in the imperial system to what it is in the metric system?!

No 1:50 is still 1:50, but when you are using an architect scale the scaling terminology is specific to the architect scale it's no longer a unit ratio like is used in modeling...

Very confusing, I must say. So is our beloved studio scale 1:24th imperial scale or metric? I´d have sworn that it is metric?!

It's 1:24 in both... Confusing yes, but it's not about a Imperial or Metric difference it revolves solely around the use of an architect scale, in architecture...

all I needed to do was scale my drawing to 25% of original and then an additional 25% of the scaled original... Make sense?

6.25% of the original makes more sense

 

[DaddyfromNaboo]

Mah brain hurts...

But that explains a few weird dimensioning errors in the CAD program I just got.

...6.25% of the original makes more sense

Metric or imperial?

 

[hankey01]

Just to chime in...

1:50 is 1:50 in metric or imperial..HOWEVER it is not an accepted scale in Imperial. The closets you would use is 1/4"=1'-0" which is 1:48.

 

[exoray]

But that explains a few weird dimensioning errors in the CAD program I just got.

Blame it on architectural standards :lol

...there is nothing about a ½" pipe that is ½", be it copper, iron, or PVC. The outside diameter of copper is 5/8", and the inner diameter is either 0.527", 0.545", or 0.569", depending on the series. So-called ½" iron pipe is 0.840" outside diameter and 0.622" inside. PVC is the same outside as cast iron, but it is 0.608", 0.528", or 0.480" inside.

 

[DaddyfromNaboo]

Blame it on architectural standards :lol

Yeah, seems to be even worse than what´s going on with mobile chargers and USB ports :lol