relation help

[wildmodeler]

I am trying to automate a model as much as posible. I have a cylindrical extrusion with a shell comand following to give it a thickness. (Model is a tank)When the extrusion gets too long the thickness of the shell fails. Can I write a relation to change the shell dim when the extrusion gets to a certain length and above? I dont see a greater than funtion in there. Any help?

 

[megaladon]

you could write it several different ways.


lets say D1 is the length and D2 is the thickness


d2=d1/x

 

[bfairhurst]

you could do something like this, if the cylinder length = d1 and the shell thickness = d2


If d1 <= 10.0


d2 = .25


else


d2= .125


endif

 

[contour]

>= Greater than or equal to

 

[wildmodeler]

bfairhurst Thanks worked great.

 

[wildmodeler]

While I have your attention. Is there a clever way to make this work. There is a "Volume" model that drives the size of the tank. All other models are driven off this. If I change 2 dimensions (volume length & volume diameter) the entire model updates. Can I set it up to automate any way? Like with reps ot parameters or something that would wow the bosses?