Just a scaling question

RunwayOneSixRight · #1 03-12-2014, 09:12 PM

Hi guys and gals!

Just a quick question for ya'll, I have been thinking about hanging some models in my school (like what Inky did) and was wondering what setting should I set my printer to to get 1:150 scale from 1:100?

Thank you in advance!

-RunwayOneSixRight (Matthew)

**looker** · #2 03-12-2014, 09:22 PM

Surely your school should already have have taught you this.

Try
66.66666666666666666666666666666666666*%
or perhaps just settle for
67%

RunwayOneSixRight · #3 03-12-2014, 09:26 PM

Quote:

Originally Posted by looker

Surely your school should already have have taught you this.

Try
66.66666666666666666666666666666666666*%
or perhaps just settle for
67%

Amazing how I can program video games and computers, have all A's, and even a top student but yet I can't figure out how to scale paper models.

Anyway, thank you Looker for that.

-RunwayOneSixRight (Matthew)

**Dabeer** · #4 03-12-2014, 09:43 PM

For future reference, the formula to use is:

<scale you have> / <scale you want> = <percent to print at>

so

100 / 150 = 2/3 ~= 66.6%

**Fishcarver** · #5 06-20-2014, 12:42 PM

Dabeer is right! JR

**Swampfox** · #6 06-20-2014, 01:42 PM

Quote:

Originally Posted by RunwayOneSixRight

Amazing how I can program video games and computers, have all A's, and even a top student but yet I can't figure out how to scale paper models.

Anyway, thank you Looker for that.

-RunwayOneSixRight (Matthew)

Sounds like your schools grading system should get an F!

And you shouldn't be getting an A in math if you can't figure this out.

SFX

**Fishcarver** · #7 06-20-2014, 02:50 PM

For picking on RunwayOneSixRight for a legitimate question.

JR

**sgoti** · #8 06-20-2014, 05:21 PM

Quote:

Originally Posted by Dabeer

For future reference, the formula to use is:

<scale you have> / <scale you want> = <percent to print at>

so

100 / 150 = 2/3 ~= 66.6%

Psst!

It should be (<scale you have> / <scale you want>)*100 = <percent to print at>.

100/150 = 0.66666666666666...

You get 66.6 after multiplying by 100.

**looker** · #9 06-20-2014, 08:52 PM

Aggh!

No you don't - you get 66.7% - since the convention is that anything to the right of a decimal point that is greater than or equal to 5 is to be rounded up.

Perhaps you both failed to pay proper attention at that point in your schooling.

**sgoti** · #10 06-20-2014, 09:29 PM

Quote:

Originally Posted by looker

Aggh!

No you don't - you get 66.7% - since the convention is that anything to the right of a decimal point that is greater than or equal to 5 is to be rounded up.

Perhaps you both failed to pay proper attention at that point in your schooling.

Oops! error on my part.

My answer should have been:

You get 66.666666666666... percent after multiplying 0.66666666666666... by 100.

I got lazy and left out the repeating numbers.