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CAD tip CAD tip # 3977:

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Q - question

How to construct a 3D ellipsoid?

A - answer A 3D solid of "elliptic sphere" can be made in AutoCAD e.g. with the Revolve command.

First draw a half of the contour ellipse (_ARC, or _ELLIPSE and _TRIM), connect its endpoints (future axis) and join it in one polyline. Now rotate this profile around the axis using the REVOLVE command.

You can also use a 3D sphere, make a block from it and then insert this block with uneven scale (X-Y-Z).

100% *  CAD 
12.8.2004    38698×  
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applies to: AutoCAD ·

See also:
Tip 13221:Attractor - snap multiple objects to existing points/vertices.
Tip 13183:Lin2Cyl - bulk conversion of lines to 3D cylinders.
Tip 13163:Blended transitional solid between irregular regions, circle-rectangle transition (3D in AutoCAD)
Tip 13087:3DintCurves - intersections of curves with 3D solids.
Tip 13040:iLogic - display information about complexity of an Inventor part.

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