Create the dimension for the outer circle. In the dimension edit box, type = then click on inner circle dimension and add *2
Added a quick video.
Add Relative Dimension.mp4 223.5 KB
Since I wrote, I have discovered how to dimension relative to another dimension. It was what I expected apart, what you described, from one thing. I have to put spaces between the mathematical symbols and the values.
Hi Vagulus Dagg:
May I know who is your value-added reseller ?
Or where do you purchased SOLIDWORKS product?
I am an engineering student.
That's right - a student. That's why I keep asking dumb questions!
I use the Student version 2014-2015 which I downloaded. Sadly, no middle-man was involved. Free enterprise took a blow.
I will suggest another one method to relate one dimension with another.
Goto Tools > Equations
Add below global variables in Equation
A = 45.57
B = "A" * 2
Create two circle and create two dimensions with respect to it. Link the dimension value with global variable, refer the below screen shot.
repeat it for another one dimension too.
In future , you no need to edit sketch and change dimension value. If you change the global variables, it will reflect in Sketch.
My thanks to Venkatesh and Yuvaraj.
I think I have it under control now.