Categories

Archive

Disclaimer

De meningen ge-uit door medewerkers en studenten van de TU Delft en de commentaren die zijn gegeven reflecteren niet perse de mening(en) van de TU Delft. De TU Delft is dan ook niet verantwoordelijk voor de inhoud van hetgeen op de TU Delft weblogs zichtbaar is. Wel vindt de TU Delft het belangrijk - en ook waarde toevoegend - dat medewerkers en studenten op deze, door de TU Delft gefaciliteerde, omgeving hun mening kunnen geven.

Meshing Madness

After yesterday’s scans the next step was to convert these files to printable STL files. Therefore, we used an applications that could convert these files for us. After a lot of trial and error that we experienced over the weekend, this was done in much less time. Viewable three dimensional files were produced very quickly. Because we used the medical CT-scanner (the one with a lesser resolution) the result was slightly dissapointing. But the recieved files were a lot smaller (say, ten times smaller) and can be processed much easier.  We even managed to smoothen the surface, so it doesn’t not look like the previous test glass. This was done by first exporting the files to a different extension then STL, and then loading it into Rhinoceros 4. The results of the scans and the converting process, which we are very satisfied with, are shown below.

 

 

After some tweaking and editing it was time to finally export the file to STL. To our dissapointment the result after exporting was very unsatisfying. The now printable glass looked nothing like the original shape. The surface was distorted and edgy. This was not how we imagined how the printed glass would look. After consulting with the 3D printer opperator, he confirmed the print would definately look like what we saw in the modelviewer. This is how the glass would look if we didn’t do something to improve it.

 

 
 
Because what we are attempting is not done before very often, there are not many people that could assist us in this matter. This resulted in again many hours of trial and error. Ing. A. de smit (our Rhinoceros expert) explained us that what we saw in the rendered image was not the real thing, but an interpretation that Rhinoceros made for a better looking render. After almost haven given up, we contacted Dr. Y. Song. With his broad knowledge about situations like this one, he managed to ‘repair’ the file and produced an amazing looking printable three dimensional copy of our glass. From which the result is shown below.
 
 
 
 
We are very happy with this result and will 3D-print this glass in plastic for further testing. The result will follow tomorrow.
Be Sociable, Share!

Leave a Reply

© 2011 TU Delft