sharp objects and require careful handling. Large
pieces of metal stock and other materials can
pose hazards and must be handled safely.
The following precautions should be
observed when laying out a job:
Never carry an open scriber, divider,
trammel, or hermaphrodite caliper in your
pocket.
Always cover all sharp tool points with a cork
when the tool is not in use. When laying out
work, place tools on the bench with the
points facing away from you.
Avoid handing a sharp tool to another
person with the pointed end sticking out.
Wear goggles when grinding the points of a
scriber.
Get help if you have to move heavy angle
plates, large V-blocks, or other large
equipment.
Remove all burrs and sharp edges from the
stock before starting the layout.
106 Modern Metalworking
1. Cut the stock to the
approximate size.
2. Locate and scribe
the base lines.
3. Locate and scribe the
circle and arc centerlines.
4. Scribe in the circles
and arcs.
5. Locate and scribe the
angular lines.
6. Scribe in the remaining
lines.
Figure 6-29.
The sequence of steps involved in laying out the job shown in Figure 6-28.