… here is a complete Chris_G_ian CurvesWB example of parametric 3D-modeling of a blade halfprofile.
- starting with 2 pairs of parametric projection curves for LE and TE as 3D-BSplines
( a little bit scratching with the left hand on the right ear - not so easy)
- from this pair of 3D-curves a Ruled_Surface is derived,
- on the ruled surface there can be created some Profile_Planes by clicking at the wanted positions.
(look for the parameters position/height (0 .. 0,54 ..1,0) and direction x,y,z and adjust them - also right ear scratching,
Edit: after saving and reloading file, the planes get invisible (!) Visibility property doesn't work correct.
They can be activated again by editing e.g. x-value in properties.)
- on the profile planes the sketcher profiles can be generated - external and therefore parametric links to LE and TE are constrained,
- now with ruled surface and the 4 profile sketches the Sweep_2_rails is done,
- Sweep_2_rails at last can be converted to the Approximation_curve.
In the picture from bottom to top.
- Prop_CurvesWB_2.PNG (47.78 KiB) Viewed 2134 times