Page 90 - Subyek Computer Aided Design - [David Planchard] Engineering Design with SOLIDWORKS

Fundamentals of Part Modeling Engineering Design with SOLIDWORKS® 2018

Reference Planes and Orthographic Projection

The three default .l Reference

planes represent infinite 20

planes in 30 space:

• Front

• Top

Righi

• Right Secondary Datum Front

Tertiary Datum

Planes have no thickness or

mass. Orthographic projection is

the process of projecting views

onto parallel planes with .l

projectors. HEIGHT

Default .l datum Planes are:

• Primary

• Secondary DEPTH

• Tertiary

Use the following planes in

Top
manufacturing: Prim o ry Do tum

• Primary datum plane:

Contacts the part at a

minimum of three points.

• Secondary datum plane: Contacts the part at a minimum of two points.

• Tertiary datum plane: Contacts the part at a minimum of one point.

20 Profile Front Plane Top Plane Right Plane

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