I'm just newbie in the FreeCAD, I'm playing with it the second evening. I'm trying to create little unconventional wing for RC model "UFO" style for 3D print technology. But I have some problems:
1) B-Spline problem. It looks that the B-Spline works just with small amount of points. If the amount of points is bigger than some number, the spline start doing unexpected things. See the file spline-problem.png. The airfoil was imported from file of points and it made DWire - flat surface bounded by lines based on the points. Then it was converted in Draft workbench to the B-Spline and changed to open spline. See the b-spline-problem.fcstd and spline-problem.png. When I tried another way, degrade the DWire airfoil to the points and create the B-Spline manually, it looks that FreeCAD B-Spline works well to some number of points. Am I right, or am I missing something - doing something wrong?
2) Sketch problem. When am I working on a geometry and there is more objects, the sketch creation makes problems. It looks to me that the sketches are created randomly inside the feature tree. I have active some feature or node (or how does it called in FreeCAD), but the sketch is created somewhere elsewhere. I have to seek where was the sketch created and then move it where I want to have it. It is quit annoying. Am I doing something wrong or is it a bug? See the file wing.fcstd and try to make new sketch in Part Design.
Thanks for answer
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