Crown Molding Auxiliary Fence - Bosch GCM12SD Operating/Safety Instructions Manual

2610051827 GCM12SD 08-18.qxp_GCM12SD 9/19/18 2:52 PM Page 54
lying flat on the table, narrow cut-off pieces
(2" or less in width) may be propelled at high
speed over the fence and beyond the back of
the tool (see Fig. 59). Use auxiliary fence as
instructed and shown in figures below.
An auxiliary fence is used to add support to the
cut-off workpiece such as large crown molding
when cut flat on the table (see Fig. 60). It will
reduce splintering and movement of the unsup-
ported cut-off piece of wood after the cut is
made.
Making an Auxiliary Fence:
Required pieces:
Wood Board (described below)
4 – Flat Head Machine Screws –
1/4" diameter; 2-1/2" long
4 – 1/4" Flat Washers
4 – Nuts
1.Cut a nominal 1" x 2" wood board to a length
of 26-1/16" long. NOTE: 1" x 2" nominal
equals 3/4" x 1-1/2" actual. 3/4" plywood cut
to size may be substituted.
2.Drill four holes through the board using a
5/16" diameter drill bit. Countersink the
holes deep enough so that the flat head
screws will rest below the front work surface
– use a 1/2" diameter drill bit (see Fig. 61).
Remove the sliding fences from the tool – see
page 34.
1.Place the flat head screws through the holes
in the auxiliary fence, then the holes in the
stationary fence on the tool.
2.Place the washers and nuts over the screw
threads and against the stationary fence.
Tighten nuts.
First-Time Use of the Auxiliary Fence:
NOTE: The first time the auxiliary fence is used,
it will be cut through by the saw blade – cutting
through creates minimal clearance which re-
duces splintering on the workpiece. Set the
miter angle and the bevel angle required before
making the first cut.
54
Saw Operations

Crown Molding Auxiliary Fence

When making a com-
pound cut on a molding
Fig. 59
Small Cut-off Piece
Fig. 60
Small Cut-off Piece
Be aware of the path of
the saw blade. Make a dry
run with the saw Off by conducting a simu-
lated cutting cycle, and observe the projected
path of the saw blade. Keep hands at least six
(6) inches away from the projected path of
the saw blade.
Clamp the workpiece, then make cut – exam-
ple: compound cutting large crown molding flat
on the table (see Fig. 58).
Stationary Fence
Auxiliary Fence