Download presentation
Presentation is loading. Please wait.
Published byElwin Thomas Modified over 9 years ago
1
U1- L16 October 6, 2010 DRILL 1.Are 3 views always sufficient to accurately represent an object? 2.What are the 5 steps to draft orthographic projections? 1.No, they are not. 3 views are generally sufficient, but not always. 2.5 steps 1.Square and tape paper 2.Lay out border 3.Darken border and complete title block 4.Draw construction lines 5.Measure and draw (BEGIN WITH LIGHT CONST.)
2
U1- L17 October 6, 2010 DRILL 2 1.Correctly label each view: 2.What type of line is the lightest line on your paper? FRONTTOPRIGHT CONSTRUCTION LINES
3
Note-taking in FOT At Poly we train you for two things: Success in college Success in the world Do not copy every word – it won’t be possible. Capture the main ideas and key details. U1 -L2
4
U1 - L1 Lettering Engineer’s communication tool All capital letters BETWEEN GUIDELINES Legible and Consistent LEGIBLE AND CONSISTENT
5
U1 - L1 On top line, identify the unit we’re in. Never write in line directly below it (no X’s) UNIT 1 – GENERAL CONDITIONS BPI NOTESHEET 6 OCT 10 WETZEL, T. 7 Note Sheets
6
Three line weights in this class: –Light: very thin, not noticeable from 2’ –Medium: thin, noticeable from 2’ –Heavy: thick, obvious from 2’ DRAWING U1- L4
7
U1- L2 GRID COPYING
8
Rules for drawing: –Pull your pencil, don’t push it. –Use proper line weight –Always start with LIGHT layout lines. DRAWING U1- L4
9
1/16”1/8”1/4”1/2”1” 1 3/16” 1 3/8” 1 1/2” 1 3/4” 3/4” U1- L6 16 MEASURING
10
3-VIEW DRAWINGS TOP VIEW FRONT VIEWRT SIDE VIEW U1- L7
11
TOOLS Sharpened Pencil - different line weights Drawing Board –Smooth, flat surface T-Square –“Head” and “Blade” –Horizontal lines ONLY –NEVER for vertical lines or for other uses Triangles –30-60 degree triangle –45 degree triangle Compass - circles U1- L9
12
DRAFTING HORIZONTAL LINES –Hold t-square TIGHT against board –PULL your pencil, DO NOT push it –Hold pencil at slight angle to paper (60 degrees) –Twist your pencil to keep a consistent point –DO NOT allow pencil to go under t-square VERTICAL LINES –Hold triangle TIGHT against t-square –Hold t-square TIGHT against board U1- L9
13
1. Square horizontal line on paper to drawing board using T-Square 2. Fasten upper left corner of sheet with ‘dot’ 1 2 3. Smooth to the lower right corner 4. Attach 3 U1- L10
14
5. Smooth to upper right, then attach 6. Smooth to lower left; finish attachment 5 6 DOUBLE-CHECK FOR SQUARE U1- L10
15
STEP-1 Square paper down using T-Square and lettering guidelines 1 2 Attach 3 U1- L14
16
5 6 DOUBLE-CHECK FOR SQUARE U1- L14
17
STEP 2 – Lay Out Border Measure ½” from all 4 edges of your paper. Then draw LIGHT const. lines. [Intersections can criss-cross – as long as construction lines are LIGHT] U1- L14 ½”
18
STEP 3 – Darken Border Darken border lines with a heavy line. Begin and end precisely at intersections. U1- L14 ½”
19
STEP 4 – DRAW CONSTR. LINES U1- L14
20
STEP 5 – MEASURE AND DRAW Begin with Construction Lines U1- L14
21
DRAFTING 3-VIEW U1- L16
22
DRAFTING 3-VIEW U1- L16
23
HOMEWORK –FINISH 3 VIEW DRAWINGS USING RULER AT HOME –Study Notes and Drills for Multiple Choice Part of Test CLASSWORK Continue drafting the 3-view assignments from last week. U1- L16
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.