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CAD tip CAD tip # 12013:

Question CAD 
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Q - question

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

A - answer 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:

ACAD
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20.9.2018    1662×  
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applies to: AutoCAD ·

See also:
Tip 11288:Selection cycling is not working in TRIM/EXTEND.
Tip 11054:Difference volume (3D solid) between two TIN surfaces (sets of coordinates)
Tip 9357:Intersection of a 3D curve with a 3D surface in AutoCAD.
Tip 6748:Disregard Draw Order for this operation?
Tip 3816:Is there a Trim or Extend method for AutoCAD objects in VBA?


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