GLAs_WK_5

8/2/2019 GLAs_WK_5

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GUIDED LEARNING ACTIVITIES (GLAs)(WEEK - 5)

This week’s GLAs include:

Sectional views (Sections)

Blocks

Attributes

Title blocks and layouts

GET YOUR LAB WORK CHECKED BY LAB TUTORS BEFORE YOU LEAVE

THE LAB.

NOTE:

GLAs must be completed during your registered lab session.

To get participation marks, you must complete the GLAs in the relevant week. Emailed GLAs do not attract any marks.

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308809 ENGINEERING GRAPHICS 232

ACTIVITY 1:

Download and complete the layout tutorial. It is located in the folder titled

“GLAs – Week 5.”

ACTIVITY 2:

Open a new file (metric drawing template - acadiso.dwt).

Create an AutoCAD drawing of the object shown in Figure A1. Draw the

following views in third-angle projection:

- a half sectional FRONT view from A

- a SIDE view

- If required, draw a TOP view

Fully dimension the views. Use a scale of 1:1

ALL DIMENSIONS ARE IN MILLIMETRES.

COMPONENT MATERIAL: CAST IRON

FIGURE A1: SHAFT SLEEVE

See next page …….

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SUGGESTED PROCEDURE

1. Decide the placement of the required orthographic views.

2. Create the three views. The FRONT view will be a half sectional view.

Imagine that the quarter of the object has been removed and you view

the object from A.

3. As shown, the exposed surfaces have been cross-hatched. These surfaces

have been sliced by the cutting plane.

4. Follow the procedure (on the next page) for adding cross-hatching lines

to the FRONT view:

5. The TOP and SIDE views will be regular views considering the entire object(including the removed portion).

6. Add a CUTTING PLANE line to the relevant view (SIDE view in this case). For

more details, refer to page 5 of this document.

7. Add dimensions using the dimensioning style that you created in Week 4.

Save the file as “GLA_WK5_A2.”

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Type Bhatch and press ENTER

Hatch Pattern Codes

• ANSI31 ANSI Iron, Brick, Stone masonry

• ANSI32 ANSI Steel

• ANSI33 ANSI Bronze, Brass, Copper

• ANSI34 ANSI Plastic, Rubber• ANSI35 ANSI Fire brick, Refractory material

• ANSI36 ANSI Marble, Slate, Glass

• ANSI37 ANSI Lead, Zinc, Magnesium, Sound/Heat/Elec Insulation

• ANSI38 ANSI Aluminum

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ACTIVITY 3:

Open a new file (metric drawing template - acadiso.dwt).

Create an AutoCAD drawing of the object shown in Figure A1. Draw the

following views in third-angle projection:- a sectional FRONT view on A-A

- a SIDE view from B

- a TOP view

Fully dimension the views. Use a scale of 1:1

ALL DIMENSIONS ARE IN MILLIMETRES.

COMPONENT MATERIAL: CAST IRON

FIGURE A1: CS SOCKET


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SECTIONAL VIEW

a. Create the three views. This time, the FRONT view will be a full sectional

view.

b. Imagine that the half of the object has been removed and you view the

object from A. The centreline A-A shows the location of the cutting plane.

c. The surfaces sliced by the cutting plane need to be cross-hatched (there

are some exceptions – check the lecture notes).

d. Add the sectioning lines.

e. Add a CUTTING PLANE line to the relevant view (either SIDE or TOP).

Save the file as “GLA_WK5_A3.”

ACTIVITY 4:

Open the file GLA_WK5_A3.

Use AutoCAD design centre to import A3 Layout.

Plot the drawing on a scale of 1:1.

Get a PDF first and then print it.

Manually check the correctness of your drawing scale.


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PRINTING FROM AutoCAD

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PRINTING FROM PDF

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GLAs_WK_5