Communication Technology IOT POLY ENGINEERING 2-12 November 8, 2010 Day 1 Drafting Objectives: Learn to set up paper Border Title Block Quadrants Correctly Measure Practice line weights Communication Technology

IOT POLY ENGINEERING 2-12 Scaling Review ½ inch scale means that we represent 1 foot by 0.5 inches Example 12’9” means 12 feet and 9 inches There are 12 inches in a foot 12 feet 9 inches is 12 9/12 feet = 12 ¾ feet On a ½ inch scale, 12 feet 9 inches is drawn as 6 3/8 inches.

DRAFTING PREPARATION 2-12 How many degrees are in a RIGHT ANGLE? IOT POLY ENGINEERING 2-12 DRAFTING PREPARATION How many degrees are in a RIGHT ANGLE? What is the total number of degrees in a SQUARE? Divide that square in half, diagonally. How many degrees are in each triangle? How many degrees is each ANGLE in this isosceles right triangle? - 90 Degrees - 360 Degrees - 180 Degrees 2 1 3 1 = 90 Degrees 2 = 45 Degrees 3 = 45 Degrees

DRAFTING PREPARATION 2-12 IOT POLY ENGINEERING 2-12 DRAFTING PREPARATION A triangle with all sides equal lengths is an A triangle with all angles equal is an A triangle with 2 sides/angles equal and 1 side/angle different is an A triangle with all unequal sides/angles is a The sum of the three angles in ALL triangles is ____ degrees. Equilateral Triangle Equilateral Triangle Isosceles Triangle Scalene Triangle 180

DRAFTING TOOLS 2-12 Sharpened Pencil - different line weights IOT POLY ENGINEERING 2-12 DRAFTING TOOLS Sharpened Pencil - different line weights Drawing Board Smooth, flat surface T-Square “Head” and “Blade” Horizontal lines ONLY Used in conjunction with triangle for vertical lines Triangles 30-60 and 45 triangle Used in conjunction with t-square for vertical lines Compass – circles Protractor – lines at angles

IOT POLY ENGINEERING 2-12 DRAFTING TOOLS

DRAFTING 2-12 HORIZONTAL LINES VERTICAL LINES IOT POLY ENGINEERING 2-12 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 NEVER use the t-square alone for vertical lines

Communication Technology IOT POLY ENGINEERING 2-12 PREPARATION Get a set of drafting tools: T-Square 1 Triangle ~4” Tape Ruler Turn Friday’s homework over to use the back Communication Technology

DOUBLE-CHECK TO ENSURE SQUARE IOT POLY ENGINEERING 2-12 1. Square bottom of paper to drawing board using T-Square 2. Fasten upper left corner of sheet with tape 3. Smooth to the lower right corner 2 4. Attach DOUBLE-CHECK TO ENSURE SQUARE 3 1

DOUBLE-CHECK TO ENSURE SQUARE IOT POLY ENGINEERING 2-12 5. Smooth across to upper right, then attach 6. Smooth to lower left; finish attachment 5 DOUBLE-CHECK TO ENSURE SQUARE 6

2-12 1. Begin all lines as LIGHT construction lines. IOT POLY ENGINEERING 2-12 1. Begin all lines as LIGHT construction lines. 2. Draw a ½” border and a ½” title block ½” ½” 3. Add 3 LIGHT lettering guidelines, 1/8” apart

2-12 1. Add title block separators - Medium Weight IOT POLY ENGINEERING 2-12 1. Add title block separators - Medium Weight 2. Draw diagonals to find center. 2” 3 ½” 2½” 1½” 3. Darken border lines.

2-12 LETTER the title block information: 2” 3 ½” 2½” 1½” BPI-IOT IOT POLY ENGINEERING 2-12 2” 3 ½” 2½” 1½” LETTER the title block information: BPI-IOT LINE WT. PRACTICE LAST, First Initial 14 OCT 08 PER # FULL SCALE

Darken with border lines (Very Heavy) IOT POLY ENGINEERING 2-12 Use the “X” in the center of your drawing space to divide your paper vertically and horizontally. Quadrant 2 Quadrant 1 Quadrant 3 Quadrant 4 2” 3 ½” 2½” 1½” Darken with border lines (Very Heavy)

10 vertical lines, then draw horizontals IOT POLY ENGINEERING Q2 Q1 Q3 Q4 8’-0” 14’-0” 10’-0” 6’-0” Practice your line weights: Q1. Light lines Q2. Light, then medium lines Q3. Light, then heavy lines Q4. Light, then very heavy lines ¼” APART 10 vertical lines, then draw horizontals