Rhino/Alias/Metris/Raindrop Geomagic
Rhino/Alias/Metris/Raindrop Geomagic
(OP)
Does anyone have an experiences that they can share using any of the above (or other S/W if similar) to design stylized, surfaced models from digitized raw data? What are the pluses and minuses? What method of digitizing have you used? Which S/W works best for surface manipulation? How well do they port to other S/W packages (Pro/E for instance)? How easy to move to Rapid Prototypes and/or injection mold tooling? Any drawing capabilities (any need?).
Thanks,
Bob Kerila, PE
Thanks,
Bob Kerila, PE






RE: Rhino/Alias/Metris/Raindrop Geomagic
currently, i am using catia mainly, but wondering should i use pro-E, rhino, maya and so on for the other program to make the product look more real.
soy
RE: Rhino/Alias/Metris/Raindrop Geomagic
I get best results from exporting from Rhino and rendering in POV-Ray, a ray tracer. You can get some unbelievable shots with that. (http://www.povray.org/) Pov-ray is free too, so you might be able to get images directly.
As for modelling from point data, I did have a go at trying some reverse engineering of a component from a CMM. I found the best result was simply from using the probe to get 'slices' of points of the part, and then just creating splines from those points, adn then lofting that. Took a LOT of computer time to work it out though.
Excessive accuaracy is a sign of poor breeding. -Socrates.
RE: Rhino/Alias/Metris/Raindrop Geomagic
RE: Rhino/Alias/Metris/Raindrop Geomagic
For simple, less complex projects, we use our Faro arm to gather the point data. The points/splines are then exported to CAD (SolidWorks or Pro/E) and the model is built. To acheive a good model, this can be a very tedious and lenghty process.
We have the more complex, stylized parts scanned with white light or lazer and then surfaced with Raindrop Geomagic. The surfaces are then imported into CAD and the solid is built. The surfaces export very well but I have to say that it takes a little trial and error in determining the best method in preparing the Geomagic surfaces for your application and CAD platform (number of patches, split locations, etc).
The nice thing about software like Geomagic is the polygon model that the software creates (.stl) can be directly exported for Rapid Prototyping, analysis, or even tooling. Once the shape has been tested and approved, the surface/CAD model can then be created and documented.
RE: Rhino/Alias/Metris/Raindrop Geomagic
Developed and sold by ROMER worldwide ( www.romer.fr ) and by AXILA in north america ( www.axila.com ).
It creates STL files and also sections in different formats (i don't remember which ones). It is connected on their articulated arms.
I have seen files coming from this digitizer : really impressive.
RE: Rhino/Alias/Metris/Raindrop Geomagic
Concerning the different softwares, I wouldn't compare rhino to the others. Rhino is an efficient and low cost CAD program that works on nurbs : perfect to create surfaces, draw parts... even from clouds of points i think.
Metris and Geomagic are dedicated to clouds of points, such as Icem Surf, Polyworks... They can create STL files for rapid prototyping, and also do some CAD inspection based on the clouds of points. I think metris is based on autocad. Does someone know about that ?