On 2017-02-23 09:03, juerg.maier wrote: > Loaded the land globe into MeshMixer and stored it as .stl. It looks to > me > however that it only defines the surface and has no "thickness" of the > land > parts. > Tried a few things but am stuck now with this If you feel this is too much off-topic for OpenSCAD you can mail me at arnholm@arnholm.org and we can figure something out. Otherwise I am happy to discuss here too. But it seems this requires special processing. Carsten Arnholm

Carsten Thanks for your offer. Tried to send you a mail but get "missing domain" error with it. I had a look at the ascii form of the land stl. I imagine 2 option for me a) creating a reduces size version of the land. this will give me the "inner" surface. I might then be able to parse over the 2 files (assuming the triangle sequence stays the same) and add the missing triangles to get a closed object b) do the calcs for the "more centered" version of each triangle myself and add triangles to combine the surfaces Or maybe you know of a tool that will do this for me ... -- View this message in context: http://forum.openscad.org/extrude-to-center-tp20432p20637.html Sent from the OpenSCAD mailing list archive at Nabble.com.

On 28. feb. 2017 11:23, juerg.maier wrote: > Carsten > > Thanks for your offer. > Tried to send you a mail but get "missing domain" error with it. Observe the email I gave you, it works. arnholm AT arnholm DOT org Because of a few options and files, I am no longer sure which path you want to follow. When you email me, please link to the exact file(s) you want to use and I will try to help if possible. > I had a look at the ascii form of the land stl. I imagine 2 option for me > > a) creating a reduces size version of the land. this will give me the > "inner" surface. I might then be able to parse over the 2 files (assuming > the triangle sequence stays the same) and add the missing triangles to get a > closed object The files already have inner and outer surfaces, they are just very close together. Your option will not work. > b) do the calcs for the "more centered" version of each triangle myself and > add triangles to combine the surfaces > > Or maybe you know of a tool that will do this for me ... As noted above, send me some more information and I will try to help. - Which input files you think you want to use - say something about what the end result should look like - say something about the printing process you intend to follow, split the hemispheres in 2 or whatever. I am busy setting up a new computer/development environment, but if you provide these specifics it is easier to help. Do it here or send me an email to the address listed above. Carsten Arnholm