Trouble constraining copied sketch from downloaded .dxf file

[mooreco88]

Hey there.  Im having an issue trying to add constraints to a sketch that I copied from a .dxf file I downloaded from the internet.  The geometry copied over fine and I have moved it to my sketch origin but it seems that no matter how many constraints/dimensions I add to the sketch all the lines stay blue.  Am I doing something wrong?

If you would like to check out my drawing file I am working on sketch 2.

Thanks in advance for your help!

[etfrench]

Add dimensions to the arc center points:

and Horizontal/Vertical contstraints on lines.

[mooreco88]

Thanks! this was a rookie mistake for sure. This was all I needed to move
forward.

On a side note to this question... is there a better way to make this
curved profile. This one is made up of many short arcs and the transition
between them isn't as smooth or seamless as it should be.

[etfrench · Accepted solution]

Control point splines are fairly easy  to manipulate into shapes like this.  You could also add tangent constraints to the arcs.  Use the curvature comb to inspect the curves: