I'm new in 3D scanning, 3D CAD and I'm in problems
well my mission is to get a geometry of the horn (from the horn loudspeaker) to the Comsol multiphysics (it is a FEM modeling software) so that I can study the effects of that horn (for example acoustical impedance) and compare that to my measurements and simplified models.
I'm doing my thesis project at the Helsinki University of Technology and I've studied acoustics but not machinery or so..
I've have no point cloud measured with some big old and blue NC machine that had a touch probe. The probe didn't reach all points inside the horn and it didn't compensate the radius of the touch probe (r=3.9625mm).
I found a Rhino 4.0 from the computer classroom in our university that I tried first and I have now rhinoceros Wenatchee running on my own OS X (rhino for mac). I've tried to do the job with that but it's not done easy or I just don't how to do it.
What would be the best, cheapest and easiest way to do a surface, offset that surface in normal direction by the radius of the probe and then translate it to parasolid (that is recommended format importing geometry in comsol)?
You can get a view of my point cloud just plotted with a matlab from the .jpg-files in http://users.tkk.fi/~ihuhtaka/temp/horncloud/