Shopsmith 555970 - Manual (Page 34)

555970 MARK V – MOUNTED OVERARM PIN ROUTER
34
Bit dia. minus Guide Pin dia.
2
For example: A 3/4" diameter straight bit mi-
nus a 1/4" diameter Guide Pin equals 1/2".
1/2" divided by 2 equals a 1/4 wide rabbet.
STRAIGHT-LINE ROUTING
To perform straight-line routing, you will
need to use the two-piece aluminum Over-
arm Router Fence that came with your ma-
chine.
This fence can be used for decorative edg-
ing of projects as well as for jointing the
edges of workpieces for assembly, making
grooves, dadoes, rabbets, stop cuts and other
joints in straight workpieces.
The position of the fence is determined by
its intended use. If your operation calls for
removing the entire edge of a workpiece, it
is important that the outfeed side of the
Fence be moved forward to provide ad-
equate support for the stock after its edge
has been removed (See Fig. 27).
If you’re not going to be removing the en-
tire edge of the workpiece, attach a one-piece
shop-made face to the two-piece face; or ad-
just both sides of your two-piece Fence so
that they are exactly in-line, with no offset.
NOTE
Your Overarm Router Table contains eight
#10-24 threaded holes in its surface to ac-
commodate the included Router Fence. It
also includes four #10-24 x 1" plastic Knobs,
four plastic Spacer/Bushings and four #10
Washers for attaching the Fence to the
Table.
CAUTION
If you’re using a Bit with a pilot, the pilot
must be behind the plane of the Fence’s
contact surface in order to prevent inter-
ference with the leading edge of the
workpiece.
Follow all “General guidelines for overarm
routing” on page 18 in the front section of
this Manual for installing and aligning your
router Bit and Guard.
Turn on your router the motor and feed the
workpiece from left to right, maintaining
pressure against the Fence and Bit through-
out the cut.
= rabbet width
Figure 27. When removing the entire edge
of a workpiece, the two halves of the
Fence must be offset (A). When removing
only a portion of the edge, the two halves
of the Fence must be perfectly aligned
with one another (B).