I also realized the object created sweeping was incorrect for large cross-section, so I reduced the length of the rectangle until the sweeping becomes normal. Then I subtracted the remaining part bit by bit. But why does sweeping not just translate the cross-section along the path, but rather involv...

Dear TheMarkster,
Thank you for help. Another problem occurred when I want to subtract another body, see the figure below.

Hello everyone, I have two entities and I want to subtract one from the other. One is generated by stretching, and the other is generated by sweeping. The following two figures are before and after the subtraction, but the problem is that after the subtraction, the subtraction is not completely. Th...

大家好，我有两个实体，想求它们的差。一个是通过拉伸生成的，一个是通过扫描生成的。下面两幅图分别是求差前后的图，问题是求差后，并没有把被减对象完全扣除。请问，这是怎么回事？

Dear Shalmeneser, it can indeed be cut off, but how to ensure that the surface of this object is what I want, because it may distort the surface I expected.

Hi, I want to create a body by sweeping a cross section along a curve. However, the two ending surface are not parallel. Is it a correct method to create a body?

My version is OS: Windows 10 Version 2009 Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.19.24267 +148 (Git) Build type: Release Branch: Branch_0.19.4 Hash: 476ecf091941bead59b14e44afa6064d5a66afa3 Python version: 3.8.6+ Qt version: 5.15.2 Coin version: 4.0.1 OCC version: 7.5.3 Loca...

Thank you. But the software always crashes.

Thank you very much. However freeCAD eated up 8G memory of my computer when I executed the script and the software crashed.

Dear chrisb, Thanks for your help. I formed the sweep path from the points using BSplineCurve. However part design reported the error "TopoDS:Wire" when I did sweep. I'm new to freecad. Could you tell me how to handle with this problem? I also attached the freecad file and the points file.