Machinery Repairman

Any further movement of the work will be made by the
rotary table feed mechanism.
7. Engrave the first graduation mark.
8. Using the rotary table feed wheel, rotate the
dial to the proper position for the next graduation. Since
there are eight graduations, rotate the table 45°; engrave
this mark and continue until the circle is graduated. You
will now be back to the starting point.
NOTE: Do not move the circular copy plate during
the graduating process.
9. To engrave numbers positioned as shown on
the right side of the dial in figure 9-31, move the worktable
so the cutter is in position to engrave the numbers.
Rotate the circular copy plate to the numeral 1 and
engrave it. Rotate the rotary table 45° and the circular
9-23
copy plate to 2, and engrave it. Continue this process
until you have engraved all the numbers. If two- (or
more) digit numbers are required, offset the dial as
previously described.
10. To engrave the numbers shown on the left side
of the dial in figure 9-31, rotate the copy plate to the
required number. Then, using the cross feed and longitudinal
feed of the engraver table, position the cutter
over the work at the point where the number is required.
This method requires you to reposition the worktable
for each number. As previously stated, movement of the
engraver worktable in two directions results in angular
misalignment of the character with the radius of the
face; in this example, angular misalignment is required.