Auxiliary Views Curved Edges

1
Auxiliary Views (Curved Edges)
The same procedure (steps1-10) discussed before
applies for curved edges. However, curved edges
have no corners, so we take points on the curved
edges and treat them like corners. The more
points we take, the better the drawing of the
Curved edges.
Take the following examples.
Surface A
Draw a true shape of surface A ( i .e we need an
auxiliary view where LOS is Perpendicular to
surface A.
2
1
- choose points on curved edges
- connect projection lines between views
3
2

• Choose LOS ( in this case LOS is
• perpendicular to surface A to get true shape)

• Draw projection lines from chosen points
• on curved edges parallel to LOS.

4
3
- Draw RL1 perpendicular to projection lines //
LOS

• Draw RL1 perpendicular to projection lines
• between the two views.

5
4
- Measure distance from RL2
- Transfer distance to RL1
6
5
- Connect points
7
OR
3'
- Draw RL1

• Draw RL1

8
OR
4'
- Measure distance from RL1

• Transfer distance to RL1

9
OR
5'

• Connect Point

10

• Run //CE-WSINST
• Auxiliary View
• - http//faculty.kfupm.edu.sa/CE/ahmadi/
• - Run //CE-WSINST
• - Complete
• - Partial
• (1) Identify line of sight
• (2) Draw reference line
• (3) Project lines from each view
• (1) Create layers (1) ? Choose color for
  projection.
• (2) Create layers (2) ? Choose another color
  for point numbers.
• - Draw offset ? Through (any distance) and
  choose point for RL 2 RL 1
• -

11

• - Choose layer for text ? Give the Same Number
  on all layer
• - Go to Tool pull down ? drafting setting ?
  object snap ? perpendicular
• - OR ONSAP ? setting ? perpendicular
  (SELECT)
• - Go to Construction layer (1)
• - Type DI (distance) or from the Tool bar add
  Inquiry bar choose DI

12

• - Go perpendicular ? Go offset same dist. up
  and draw
• - Extent line to new point ? Give a point number
  as text.
• - For curved line choose PL commands to draw
  lines
• - Type PEDIT ? Choose line (to show it
  smooth curve) ? F
• - To change some lines to hidden .
• Modify ? properties ? Line type ? hidden
• - Mirror
• Choose line ? shift choose .. specify 1st
  point
• 2nd point around the x-x line ?Enter