Hi Guys
It must be simple but I´m fighting with this sketch for enough time so I decided to ask for help. I need to constrain the sketch that created the surface trim3 on the attached file, in order to make possible to keep those shapes even if I reduce the part size on any dimensions (lenght or widht).
I hope my question is clear and that somebody figures out a good way.
Thank You in advance
Victor
My first instinct would be to approach this with a much simpler sketch and rely on offset surface and patterns to create your geometry. Sketch geometry is hard to constrain compared with feature geometry-splines in particular.
Also take into account that you can dimension spline handles to control the weight and tangent angle of the spline points. This gives you control over how the splines update.
I went ahead and modelled up an example (some variation from your original, mind you). I worked this on the fly so it's got a few more features than a well-thought-out design would. But you can change the overall dimensions and it won't blow up. Have a look. (It's in Solidworks 2010 format).