Making a Technical Drawing Using the Alphabet of lines
Dec 30, 2015
Making a Technical Drawing
Using the Alphabet of lines
Complete Front view of Multi-view drawing
Drawing should be near bottom left corner.The front view shows how wide and how tall the object is
Complete Top View of Multi-view drawing
Top view should be drawn directly above front view.There should be a couple of inches of space.It shows how wide and how thick the object is.
Right side should be drawn a couple inches to the right of the front view. It show how tall and how thick the object is.
Complete the right side viewOf the Multi-view drawing
Adding Object LinesObject lines are drawn thick and dark. They represent the edges of the object.
Adding Object Lines to the top view
Object lines are drawn thick and dark. They represent the edges of the object.
Adding Object LinesUse light, thin, construction lines to help make your object lines.
Adding Object Lines
Adding Object Lines
Adding Hidden Lines
Hidden lines represent edges of lines we cannot see from the front, top, or right side, but we know they are there.
Adding Hidden Linesin the top view
Hidden lines are shown in all 3 views to show hidden parts.
Adding Hidden Linesin the right side view
Hidden lines are shown in all 3 views to show hidden parts. Here we have shown the motor compartment.
Adding Center Lines
Center Lines show us the center of a circle. They are shown with a long, short dashed line
Adding Center LinesCenter Lines show us the center of a circle. They are shown with a long, short dashed line. They are also shown in top and side views.
Section lines are used to make hidden parts stand out. They usually are drawn at angle and are only done on one view.
Section lines
Adding Section LinesThey are drawn lightly at an angle. They do not cross over hidden lines
DimensionsDimensions are the measurements.Height, Width, Thickness, Hole Locations.
Dimension are drawn thin and dark.
There are three type of Dimension Lines:Extension Lines : look like bracketsDimensions: have arrows at both ends and ameasurement in the middleLeader Lines are notes that have an arrow point to the object it is describing.
Adding Dimensions
Start with extension lines for the width. They do not touch the object lines.
Adding Dimensions
Then show the dimension line. (remember arrowheads at the end)
Adding Dimensions
Add the measurement in-between your lines.5”
Adding Dimensions
Now add the height in the Right side view. Start with extension lines. Then dimension and measurement
5”
5”
Adding Dimensions
Next add thickness dimensions5”
5”
1
Adding Dimensions
Now add the hole location dimensions using the extension lines and center lines
5”
5”
1
2.5”
2.5”
Adding Dimensions
Now add the leader linesThis give the builder Information about the drawing and product.
5”
5”
1
2.5”
2.5”
.5” Diameter Hole
Wood
Adding Phantom LinesPhantom lines represent moving parts.They are drawn with along dash then two short dashes then another long dash
5”
5”
1
2.5”
2.5”
.5” Diameter Hole
Wood
12
3
6
9
This is a Finished Multi-view Technical drawing.
5”
5”
1
2.5”
2.5”
.5” Diameter Hole
Wood
12
3
6
9