I would try and place points in strategic locations for my dimensions
in my model so when I insert them through insert models items it shows
my design intent in the drawing.
Conics! My favorite SW topic! You are right on as far as dimensioning being process dependant at least as far as my applications go. For optics I need to place the radius of curvature and the conic value (Rho) on the drawing as you would for any arc dimension. For machined components I will typically place several reference points along the profile and dimension with Basic dims then place a CF so that the CNC programmer can input those coordinates to map the process.
I do not cut optical surfaces from exported files or native SW files of conic sections created in SW if it is for an imaging application so dimensioning of the drawing is required.
Say, does this imply we might get a conic sketch tool in SW? One with a Rho variable?
Thanks guys, this is very good feedback so far.
Harold, I'm inquiring all in the name of research for now.
I would think of it like applying dimensions to a spline or an ellipse. I probably wouldn't apply dimensions. If you wanted to apply dimensions, you should probably be able to apply the value that drives it, the rho.
I'm surprised you aren't getting more responses.
Like Matt, I'm not sure why I would ever want to dimension a conic on a drawing. Then again, I've never used conics.
Doesn't surprise me at all. Actually I am surprised it came up on this forum. I have brought up my problems due to the limitations of SW sketch tools for conics and the resulting conic section b-spline surfaces and the threads typically degenerate into two conversations. One between me and Mark B trying to help me solve my problems and a few other users telling me that I am expecting too much from the software. There are others that need the functionality but have found work arounds just as I have (hey Rob!). I wonder if the minimal input is simply a reflection of the user base and (I would assume) that most users that need conics have found other softwares that have the function built in already.
I would most likely use conics for cosmetic reasons and would be unlikely to dimension them at all.