3D CAD Architecture image11 512 Rotation Solids Rotation Solids

Rotation solids are created by revolving a 2D contour about a specified axis. Surfaces are generated along the contour to form the solid. This can best be illustrated by a few examples, which all show, from left to right, the 2D contour, the result after rotation in a cross-section view, and the resultant solid.

A baluster:

3D CAD Architecture image11 549 Rotation Solids

A planter:

3D CAD Architecture image11 550 Rotation Solids

A wine glass:

3D CAD Architecture image11 551 Rotation Solids

Several different 3D objects can be generated from a single 2D contour by varying the segmentation and the angle of  rotation.

Planter: On the left the contour and on the right after rotation with 24 segments and 4 segments respectively.

3D CAD Architecture image11 552 Rotation Solids

Baluster: On the left the contour and on the right after rotation by 360°, 180° and 270°, respectively.

3D CAD Architecture image11 553 Rotation Solids

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Rotation Solids