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Clamping Workpiece
Always secure the workpiece to the table with
clamps to avoid injury and damage to the machine
and cutter. Always use at least four clamps.
Items Needed
Hold-Down Clamps ..............................4 or more
To clamp workpiece to table:
1.
Clear dust, wood chips, and tools from table
surface and T-slots.
2.
Thread hex bolt into clamp plate, then insert
T-bolt through clamp plate and thread flat
washer and wing nut (see Figure 22).
Clamp Plate
Hex Bolt
Figure 22. Hold-down clamp components.
3.
Place workpiece on table. Joint or shim if
necessary to ensure a flat work surface.
4.
Slide T-bolts into T-slots, then adjust
wing
nuts
and
plates are higher than workpiece (see
Figure 23).
T-Bolts Slid
Into T-Slots
Figure 23. Clamping workpiece to table.
-28-
Qty
Wing Nut
Flat
Washer
T-Bolt
hex
bolts
so
clamp
Adjusting
Wing Nuts
5.
Position clamps so workpiece is stable and
does not rock. Take into consideration axis
positions when G-code runs.
6.
Tighten wing nuts until workpiece is secure
and flat against table on all four sides/ corners.
Using a Spoilboard
A spoilboard should be used on top of the table
with any operation the cutter cuts completely
through the workpiece. Typically, a spoilboard is
made of MDF that has been surfaced perfectly
flat. Even a new piece of material should be sur-
faced before use.
Moisture will swell/warp MDF. Using a damp
spoilboard may result in damaged or inac-
curately cut workpieces, and damage to the
machine. If liquid is spilled on spoilboard, it
must be dried and resurfaced, or replaced.
Clamping Spoilboard
Items Needed
MDF (sized for table or workpiece) ................... 1
Clamps, Tape, or Wood Screws ........ As Needed
To clamp spoilboard:
1.
Clamp surfaced spoilboard to machine
bed using included hold-down clamps (see
Figure 24).
Workpiece
Spoilboard
Figure 24. Example of spoilboard clamped to
CNC router bed.
Model G0931 (Mfd. Since 02/21)
Qty
Clamp
Bed
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