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Chapter 7 Troubleshooting
7-1 Troubleshooting (Engraving)
The cutting-in depth is not uniform (when using the nose unit).
Try revising the cutting parameters as described below.
➢ Is automatic Z control set to"ON" with the lock lever at
position
or ?
☞
P. 82, "The Position of the Lock Lever," p. 85, "Submenus"
➢ Is the cutter holder, the cutter-holder mounting screw, or
the collet loose?
☞
P. 56, "Cutter Installation Method 1"
➢ Is the X- and Y-axis feed rate too fast for the workpiece, or
is the speed of spindle rotation too slow for it?
☞
P. 48, "Adjusting the Spindle Speed, " p. 77, "Adjusting the Cutter
Feed Rate During Engraving (Override)"
➢ Is the cutter worn? Try replacing the cutter.
➢ When the cutting-in depth is extremely shallow, the ef-
fects of cutting waste can become large. Try using a cut-
ter with a narrow blade width, along with increasing the
cutting-in depth. Alternatively, use the vacuum adapter
for chip cleaning.
☞
P. 56, "Cutter Installation Method 1," p. 80,"Attaching the Vacuum
Adapter for Chip Cleaning"
The cutting-in depth is not uniform (when not using the nose unit).
Try revising the cutting parameters as described below.
➢ If possible, perform engraving while using the nose unit.
☞
P. 56, "Cutter Installation Method 1"
➢ Is the surface of the workpiece level? Revise the mounting
method and other such factors to mount the workpiece
so that its surface is level. Also, if the flatness or levelness
of the workpiece table is an issue, carry out surface level-
ing for the workpiece table.
☞
P. 83, "Surface Leveling of the Workpiece Table"
➢ Is automatic Z control set to "ON" with the lock lever at
position
?
☞ P. 62, "Cutter Installation Method 2," p. 82, "The Position of the
Lock Lever"
➢ Is the cutter holder, tool retaining screw, or collet loose?
☞ P. 62, "Cutter Installation Method 2"
The cutter leaves tracks at places where cutting-in starts or where lines change direction.
Try revising the cutting parameters as described below.
➢ The spindle rotating speed is too slow with respect to the
feed rate. Try reducing the spindle speed.
☞
P. 48, "Adjusting the Spindle Speed"
➢ Is the cutter worn? Try replacing the cutter.
An engraved bottom surface is rough or burring remains.
Try revising the cutting parameters as described below.
➢ The spindle rotating speed is too slow with respect to the
feed rate. Try increasing the spindle speed or making the
feed rate slower.
☞
P. 48, "Adjusting the Spindle Speed," p. 77, "Adjusting the Cutter
Feed Rate During Engraving (Override)"
➢ Refasten the workpiece securely so that it does not come
loose or slip.
☞
P. 54, "Mounting a Workpiece"
➢ Try performing cutting a second time to finish the bottom
surface and remove any burring. Making the cutting-in
depth about 0.02 to 0.05 mm deeper for the second pass
may yield better results.
➢ Is the cutter worn? Try replacing the cutter.
➢ Check to make sure the cutter diameter matches the collet
diameter.
Engraved lines are uneven or wavy.
Try revising the cutting parameters as described below.
➢ The cutter holder, tool retaining screw, or collet is loose,
and the cutter is out of control. Tighten securely.
☞
P. 56 through 71, "Cutter Installation Method 1" through "Cutter
Installation Method 4"
➢ Refasten the workpiece securely so that it does not come
loose or slip.
☞
P. 54, "Mounting a Workpiece"
➢ Check to make sure the cutter diameter matches the collet
diameter.