Model G0894 (Mfd. Since 05/19)
-25-
Changing Cutter
Cutters are sharp! To reduce
the risk of being cut, wear
leather gloves when han-
dling, installing, and remov-
ing cutters from spindle.
Items Needed
Qty
Open-End Wrench 21mm .................................. 1
Open-End Wrench 30mm ................................. 1
To change cutter:
1. Home all axes (see Homing Axes on Page
28), then turn machine OFF.
2. DISCONNECT MACHINE FROM POWER!
3. Secure spindle with 21mm open-end wrench
(see
Figure 19).
4. Place scrap material or shop rag under
spindle to catch cutter.
5. Remove spindle nut with 30mm open-end
wrench (see
Figure 19), then remove collet
and cutter.
6. Place new cutter in collet and spindle nut,
then tighten spindle nut to secure cutter.
Figure 19. Changing cutter.
Spindle
Spindle
Nut
4. Depth and Width of Cut: The cutter must be
long enough to reach the maximum plunge
depth of the operation and small enough to
cut the details of the piece. However, shorter,
wider bits will deflect less, leading to more
accurate cuts, and they are less prone to
wear and breakage.
5. Finish: If a high-quality finish is a priority,
use a cutter with more flutes. Four-flute cut-
ters will be the most available in most cases.
Don't forget that number of flutes is a compo-
nent of calculating chip load.
6. Chip Displacement: Up-cut bits keep the
workpiece clear of chips, but on composite
materials the upward force of the opera-
tion will chip and fray the top surface of the
workpiece. Down-cut bits leave a smooth
finish on the top of the workpiece, but press-
ing chips down creates more heat during the
cut and frays the bottom of the workpiece on
through cuts. Compression bits are fluted to
cut up on the bottom, and down on the top,
compressing the workpiece during a cutting
operation. Compression bits are ideal for cut-
ting materials like plywood and other com-
posites.
Summary of Contents for G0894
Page 48: ......
