AC1000 Posted January 12, 2018 Share Posted January 12, 2018 Extrude command should have "both sides" option. When working with nurbs it is quite nice to draw on surface (snapping on face) and then extrude spline to get object to trim nurbs. Option to extrude both sides would save time because you don't have to adjust extruded spline to ensure proper trim. Link to comment Share on other sites More sharing options...
AC1000 Posted January 24, 2018 Author Share Posted January 24, 2018 I learned that you can do this by using trimming even if the cutting spline is out of the surface and does not even touch to it. Now I have another problem. Occasionally the holes can be moved on the surface of Nurbs and occasionally not. I can not find a clear logic for this. Link to comment Share on other sites More sharing options...
etroxel Posted January 25, 2018 Share Posted January 25, 2018 Can you explain how to do this? Link to comment Share on other sites More sharing options...
AC1000 Posted January 25, 2018 Author Share Posted January 25, 2018 Hi! FormZ is full of secrets . 1. Extrude spline 2. Select ZX plane from Reference Plane Tools 3. Draw rectangle 4. Adjust the position of rectangle 5. Select Trim/Split tool: Trim with line 6. Select extruded spline and then the rectangle Now you have hole on surface and you can drag that hole. If you turn extruded spline to Nurbs and increase U and V degrees you may move the hole almost everywhere on the surface. Interesting. When you play with surface it will turn sometimes to smooth surface and loose control points. The most odd thing is that the reference plane (project plane, construction plane) can not be user defined, but must be selected from the panel. Otherwise, the above does not work. Link to comment Share on other sites More sharing options...
etroxel Posted January 26, 2018 Share Posted January 26, 2018 Thanks for providing the steps. It works for me with a user-defined reference plane. See attached screenshots. Link to comment Share on other sites More sharing options...
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