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Place a Constraint to Sketch geometry

Place a Constraint to Sketch geometry

Place a Constraint to Sketch geometry

(OP)
    Does anyone know how to place a constraint in an
assy. with projected sketch geometry?? I would like to
use the sketch feature in an assy. to project geometry
then constrain a part to the geometry I just projected.

Thanks,
Walter

RE: Place a Constraint to Sketch geometry

I use Construction geometry and driven dimensions in assembly sketches. You can always offset a workplane using driven dimension as offset value.

RE: Place a Constraint to Sketch geometry

(OP)
Thanks Alpharam,

  I Dont think I made myself clear, but as I said before in an assy I would like to place a constraint to a sketch. Example: In an assy. I project a circle to a plane, then what I would like to do is finish the sketch and place a insert constraint to the circle I just projected. Can you do that??

  That was just an example, it could be any type of 3d constraint. Sometimes it's hard to place something on a complex shape or surface with out projecting to a 2d sketch and then using that projection to constrain to.

  What happens when I project to a 2d sketch in an assy. is the geometry I just projected cant be used to create an axis, plane or work point. I dont know if this is any better but maybe someone will understand. :)

Thanks
Walter Hilton

RE: Place a Constraint to Sketch geometry

Insert constraint can be substituted by 2 or 3 mate constraints.
It is true that you can't attach work point, plain or axis to assembly sketch. But you can attach driven dimensions and use them when you offset workplanes. What I offer is a practical workaround, I never tried to argue with wellknown facts.
Does it make sense?

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