Flex thís parameter

[yes_and_no]

I have this parking island family setup with W parameter. The red segment supposed to be 6" parallel to the black when W is flexed, but it won't.

The bold dots indicate locked segments.

You know how ?

 

[RDAOU]

@yes_and_no 

can you elaborate on what is it, Symbolic/Model Lines or an extrusion? Constraining 2D lines is more delicate than constraining geometries.

Moreover, you would need to make sure the length of the below highlighted segment(s) does not end up = 0 when flexed. At a certain width it will break while trying to maintain the 6"

[yes_and_no]

I m awarded of that short segment in your yellow mark. If I try without 6" then it s ok but the redline will be skewed. I guess the flex pushes for a rotation in nature.

Yes, it s an extrusion.

[RDAOU · Accepted solution]

@yes_and_no 

• Use a reference line locked at the points shown below
• set the work plane to the horizontal plane passing through the reference line (highlighted in the image below)
• Host the sketch lines of the extrusion or the model line (the Hypopneas from triangle 1 & 2) on the reference line plane mentioned above
• Place a dimension 6" and lock it or associate it to a parameter

this way when the width change (and subsequently the angle change) they will change simultaneously preserving the 6" locked dimensions