CAD tip # 12013:

Question CAD
% platform category

How to trim 3D solids with other 3D solid (3D trim).

If you need to trim 3D solids, you should use the command SUBTRACT, the standard TRIM does not work on 3D objects.

Create a copy of the trimming solid (cutting edge) and subtract this duplicate from the trimmed objects. If the trimming object is just a thin solid, only a slit may be made in the trimmed objects, but they remain intact, together as one body. In this case, use the command SOLIDEDIT with the option Body > Separate. Then erase the dangling parts outside the trimming border.

Another option for trimming is to convert the trimming object to Surface and use the command SLICE.

The first option is illustrated in the video:

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20.9.2018 46047×

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applies to: AutoCAD ·

See also:
Tip 13847:	Pringles in AutoCAD - a hyperbolic paraboloid.
Tip 13694:	Individual modification of elements in AutoCAD dynamic arrays.
Tip 12966:	TrimArr - trim a dynamic array to a boundary curve.
Tip 12348:	Is it possible to import SketchUp SKP files 2013, 2018,2019 or 2020 into Revit?
Tip 12143:	ATrim - dynamic trim/extend by painting.

Selected tip: Publishing old Whip-DWF files from AutoCAD 2011.

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