CAD tip # 8854:

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How to create a 3D paraboloid in AutoCAD?

To construct a paraboloid of revolution (a quadric) you can use revolving of a parabolic curve.

First draw the creating curve of parabola (resp. a half of parabola) - you can use the LISP utility Parabola (see Download). Add the axis (line) a break the curve in half using the axis and the BREAK command.

Now revolve the parabolic curve around the axis with the REVOLVE command, use the angle of 360°. The result is a parabolic 3D surface, e.g. a dish of a satellite antenna, a reflector case, etc.:

Paraboloid

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14.10.2012 20516×

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applies to: AutoCAD ·

See also:
Tip 13847:	Pringles in AutoCAD - a hyperbolic paraboloid.
Tip 9743:	How to use XY coordinates from Excel as polyline vertices in AutoCAD?
Tip 8884:	Sinusoid, hypotrochoid, guilloche and other parametric curves in AutoCAD.

Selected tip: How to create an empty folder structure in Vault?

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