I need to create an octagon block which is located in the drawing by it's center point. Overall dimensions must be fixed (156 x 156), and all vertical and horizontal sides are to be equal and related (starting with 146, but adjustable). The 45 degree angles will relocate and resize to connect the other four sides, but the 45 degree angle will be maintained. Of course, the vertical and horizontal sides must remain centered on the center point.
Or would it be easier to draw a square and chamfer the corners? How would I do that?
There is a "Polygon" tool in the "Draw" tab that will do what you need.
Place the center using the base coordinate system [check "Base", in pathfinder if not displayed]...follow the prompts to set number of sides, distance, etc...
Add some midpoint relationships & a dimension......DONE!
Design Manager Streetscape Limited
Solid Edge ST9 [MP8] Classic [x2 seats]
You must have Maintain Relationships on and it is easier if they are displayed...