CHE414 CHE414 ENGINEERING DRAWINGENGINEERING DRAWING

MUNAWAR ZAMAN BIN SHAHRUDDINFaculty of Chemical Engineering

Universiti Teknologi MARA (UiTM), Shah AlamTel: 03-55436339/019-2490416

E-mail:munawar_zaman@salam.uitm.edu.my

ISOMETRIC DRAWINGISOMETRIC DRAWING

It should not be confused with 3D Solid model drawing.

It is a 2D method of describing objects in pictorial form.

SETTING ISOMETRIC SNAPSETTING ISOMETRIC SNAP• Before starting isometric drawing, must set Snap to isometric style:

• Command: snap, ENTER• Specify snap setting or [On/OFF/Aspect…]: type in ‘s’ for style,

ENTER• Enter snap grid style [Standard/Isometric]: type ‘i’ for isometric,

ENTER• Specify vertical snap: Type 5, ENTER

• Check out the cursor hair line. It will now be set in isometric pattern.

• There 3 main positions when working in this setting. Use Ctrl-E or F5 to toggle between isometric top, iso-right or iso-left.

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• The three isoplanes and isocircles.

Isoplane top

Isoplane left Isoplane rig

ht

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Isometric CirclesIsometric Circles• When drawing circles in isometric, the result will be an

ellipse.• To ensure that the ellipse is an isometric circle every time

Ellipse command is called, the setting “I” must be used.

• Command: ellipse• Then type in “i” (for isocircle), ENTER• Specify radius:….

• Try to construct an isocircle at the 3 different positions (top, right, left).

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To produce an isometric, it is advisable that you begin by sketching out the isometric drawing complete with the vital dimensions to give you an idea of how it would look like on AutoCAD. Once the sketch is confirmed, you are then ready to start drawing using the software.

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Exercise time! Class Exercise time! Class work.work.

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There is an error in the step-by-step figure. You will find out what the mistake is while practicing with this example exercise.

ISOMETRIC TUTORIAL

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