The data import from CFturbo is realized by a LISP-script.
Loading the LISP-Application and Import of the Geometrie
| • | Extra | Anwendung laden (command: _appload) |
| • | select file xyz2spline.lsp from CFturbo-installation directory, load and close dialog |
| • | execute loaded LISP-application by command xyz2spline |
| • | select and open *.txt-file expoted from CFturbo |
| • | Attention: If "; Fehler: Fehlerhafter Argumenttyp: FILE nil" occurs as error message it can be bypassed by typing the filename in the open-file-dialog manually instead of selecting the file by mouseclick. |
Construction of Impeller

Sample-view after data import
Creating the blades
| • | starting with version 2009 the creation of blades in AutoCAD is possible any longer, because the features for lofting surfaces has been modified by Autodesk |
| • | earlier version support the command _loft to create surfaces from non-planar curves |
Creating rotational surfaces (Hub, Shroud)
| • | command _revolve |
| • | select hub and shroud curves |
| • | Achse definieren durch [Objekt/X/Y/Z] <Objekt>: 0,0,0 |
| • | Endpunkt der Achse angeben: 0,0,1 |
| • | Rotationswinkel oder [STartwinkel] angeben <360>: 360 |
Construction of Volute

Sample-view after data import
Creating the open part of volute geometrie
| 1. | command _loft |
| 2. | select profile-curves to loft (part by part, starting with the open one) |
| 3. | Option eingeben [Führungen/Pfad/nur Querschnitte] <nur Querschnitte>: nur Querschnitte |
| 4. | Settings for lofted surface |
| 5. | repeat steps 1 to 4 for remaining parts of the volute |
Page url: http://www.cfturbo.com/fileadmin/content/manual/en/index.html?autodesk_autocad.html