#Flatten ellipses cad 2018 how to#
I can probably puzzle out how to generate the arc lengths of the elliptic conic sections once they are defined (step 2, above). You KNOW there is a solution, but how to grind it out repeatably? Seriously, I am tinged with a bit of envy, that's a neat geometrical puzzle to work on.
Sounds like fun.for a given value of fun! I found a few old threads on conical sections that sounded like they related but didn't seem to work for me (v5 vs v11 I guess) Any ideas? (thanks!) RE: "unfolding" ellipsoidal surface sections BOPman (Mechanical) 11 Jun 07 09:07 What is the best way to flatten these? I have tried using a couple other packages (SW, 3DS Max, Mesh Unfold, etc) and programs with varied (but poor) results but want to stay in Inventor if possible. I know that these are not true triangular shaped pieces (imagine sectioning the ellipse plan view into 8 pieces just for example). I have no issues with modeling the specific piece of the ellipsoid surface (remember these are domed ceilings), but I cannot flatten it as to make the pattern for the CNC machine/pattern. I have been charged with taking CAD data and either making plotted patterns or sending them to the CNC router for production that way.
Currently, paper developments are made until the best fit is made by eye. One of the projects I have been assigned is to redevelop an existing method for ellipsoidal shaped surfacing. I recently joined a firm that creates domed ceiling systems as a systems and manufacturing engineer.
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