### Author Topic: Civil scales and associated settings  (Read 5298 times)

0 Members and 1 Guest are viewing this topic.

#### TJAM51

• Guest
##### Civil scales and associated settings
« on: February 07, 2005, 01:09:02 PM »
Does anyone have a chart that will give me the zoom scale factors for viewprots along with dimscales and text heights etc for engineering scales such as 1"=50'-0".

Thanks

• Guest
##### Re: Civil scales and associated settings
« Reply #1 on: February 07, 2005, 05:28:23 PM »
Quote from: TJAM51
Does anyone have a chart that will give me the zoom scale factors for viewprots along with dimscales and text heights etc for engineering scales such as 1"=50'-0".

Thanks

Figger 'em out, it ain't hard.  Jest reduce to the same units.

1" = 50' is the same as
1" = 600", so the factor is
1/600xp

1/4"=1'-0"
1/4"=12"
1" = 48"
1/48xp

3/8" = 1'-0"
3/8" = 12"
3" = 96"
1" = 32"
1/32xp    or  3/96xp

1" = 30'
1" = 360"
1/360xp

~~~~~~~~~

Now for text ht. we use 1/10" high text so it's real easy.  For MS text, take the factor discovered above "times" 0.1

1" = 50' is the same as
1" = 600", so the zoom factor is
1/600xp

600 "times" 0.1 = 60
text ht = 60

~~~~~~~~~~

If you want 1/8" text multiply by 0.125 instead
600 "times" 0.125 = 7.5
text ht = 7.5

#### Scott

• Bull Frog
• Posts: 244
##### Civil scales and associated settings
« Reply #2 on: February 08, 2005, 10:13:34 AM »
Not to step on toes, but doesn't 600 "times" 0.125 equal 75 not 7.5?

• Bull Frog
• Posts: 453
##### Civil scales and associated settings
« Reply #3 on: February 08, 2005, 02:17:25 PM »
I find most people follow the same scale factors as what CADaver has shown.
So standards scale and viewport scaling would be as followed;

Scale:      Scale in dwg   Viewport   Text size
1=50______1=600units__1/600xp_____600
1/8=1-0___96__________1/96xp______96
3/16=1-0__64__________1/64xp______64
Ό=1-0____48__________1/48xp______48
3/8=1-0___32__________1/32xp______32

Mathmatically you get

Scale of X/Y=10 become Y*12/X or multiply the denominator by 12 and divide it by the numerator.
Example
1=50 is  1/50 therefore 50*12/1 = 600units
3/8=1-0 is 8*12/3 = 32units

I did find a neat little trick for scaling imperial drawings, but I found only I am new about it and practiced it.
My trick was to draw the titleblock at 1=1-0 there by eliminating the factor of 12 (twelve.)

Example using above;

Scale:      Scale in dwg   Viewport   Text size
1=50_______50__________1/50xp______50
1/8=1-0____8___________1/8xp_______8
3/16=1-0___5.3 or 16/3___3/16xp______5.3 or 16/3
Ό=1-0_____4___________1/4xp_______4
3/8=1-_____2.67 or 8/3___3/8xp_______2.67 or 8/3

The mathematical equation for my trick is as follows

Scale X/Y is Y/X = Units or divide the denominator by the numerator.

Examples:
1=50 become 50/1 = 50units
3/8=1-0 becomes 8/3 or 2.666667

The downfalls to my trick is that you have to plot your drawing at 1=1-0 and most people dont understand how easy scaling can be this way. L

The downfalls to my trick is that you have to plot your drawing at 1=1-0 and most people dont understand how easy scaling can be this way.
Thats is if I explained my little trick  clear enough  [/list]

visit: http://reachme.at/spd_designs

• Guest
##### Civil scales and associated settings
« Reply #4 on: February 08, 2005, 05:37:10 PM »
Quote from: Scott
Not to step on toes, but doesn't 600 "times" 0.125 equal 75 not 7.5?
Yup, typing faster than I think, which is pretty easy fer me.

#### Anonymous

• Guest
##### Re: Civil scales and associated settings
« Reply #5 on: February 08, 2005, 05:48:46 PM »
Quote from: TJAM51
Does anyone have a chart that will give me the zoom scale factors for viewprots along with dimscales and text heights etc for engineering scales such as 1"=50'-0".

Thanks

here is a link to a scale factor chart

http://www.theswamp.org/screens/dubb/SCALL%20FACTOR%20CHART.jpg