Instruction Manual Section Five
CHAPTER 6
Stagger Tooth Cutter
PHOTO 28 PHOTO 29
I. SET-UP PREPARATION FOR PERIPHERY
Refer to Chapter 3-1, page 36, for the initial procedure in holding the cutter, for
the wheel used, etc. Refer to Photo 28 for approximate location of the cutter on
the machine and the cutter relative to the wheel. The toothrest should be placed
on the Wheelhead at the approximate wheel center and the high point of its blade
brought on center with the center of the cutter If an inverted " V " blade is used,
the angle from horizontal should be at least a 5 degree slope on either side greater
than the cutter helix. (Page 20 shows below center toothrest location.)
II. CLEARANCE ANCLE PROCEDURE AND SHARPENING PROCESS
A. Refer to Chapter 3, for information on clearance angle generation. Leave a
very slight gap between the cutter periphery and the wheel when setting the
clearance. Move the table enough to take the cutter off the rest. Regard
less of whether the toothrest is placed from above the wheel or from below,
follow the procedure listed in B through E below.
B. Start Wheelhead motor. Move the table and cutter until one tooth lightly con
tacts the taper or curved portion of the toothrest blade somewhat before its
high point while firmly holding the cutter against the blade. When the cutter
edge is opposite the wheel edge, advance the Crossfeed enough to make slight
contact with the wheel and continue the pass with the tooth until off the
high point of the blade, off the wheel edge, toward the insider of the cup
wheel. At this point, return on the same tooth until off the wheel edge
(outside the cup wheel) to insure that the full length of the tooth was ground.
C. Rotate the cutter 180 degrees, select a tooth with appropriate helix direction,
and repeat the same process, but traverse all the way off the toothrest blade
on the inside of the wheel Rotate the cutter to the next tooth (with the
opposite helix direction) and traverse back in the opposite direction.
D. Stop the wheel and check the two cutter teeth just ground for comparative
tooth height with a dial indicator. If there is over .0005 of an inch difference,
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