Hello

I am having a trouble with a projected curve, i am modeling audi r8, and I am using 2 sketches on 2 differnt planes and the two lines in the sketches are coincident but when I project the curve the projected curve is short by a tiny bit not allowing me to sweep along, I have re-drawn it a few time to make sure the sizes are correct but i cant figure out why the curve is short. I already try to sketch the missing part in a 3d sketch but it didnt work, i hope someone could help me. I attach the image and my solidworks file.

Santiago,

Your part gives me the earlier version warning so I can't save and post a part you can open.

I just edited your sketch, Croquis1, and added the construction line, so the line is in the same plane as your sketch. If you edit the sketch in your part and add a vertical construction line at the left end of the spline, and then make the spline tangent to the line, the spline should then arch up and to the right of the construction line. That solved the problem for me.