Bosch 5412L Operating Instructions Manual page 32

When making a compound cut on a
molding 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 Figure 1). Use auxiliary
fence as instructed and shown in figures below.
Figure 1
Figure 2
An auxiliary fence is used to add support to the cut off
work piece such as large crown molding flat on the
table (see page 29). It will reduce splintering and
movement of the unsupported 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; 3
inches long
4 - 1/4" Flat Washers
4 - Nuts
1. Cut a nominal 1 x 2 inch wood board to a length
of 25-3/16" long. Note: 1 x 2 inch nominal equals
3/4" x 1-1/2" actual. 3/4" plywood cut to size may
be substituted.
2. Drill 4 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 figure 3.
Remove the sliding fences from the tool - see page 15.
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. See figure 4.
1st Time Use of the Auxiliary Fence:
Note: The 1st time the auxiliary fence is used, it will
be cut through by the saw blade - cutting through
creates minimal clearance which reduces splintering
on the work piece. Set the miter angle and the bevel
angle required before making the first cut. Clamp the
work piece, then make cut - example: compound cut-
ting large crown molding flat on the table. See
figure 2.
32.