INCRA Wonder Fence - Manual (Page 7)

7
Most woodworking projects require that your boards begin
with at least one straight edge . This one straight edge then
becomes the reference surface for subsequent perpendicular
or parallel cuts . By using your Wonder Fence and the
technique described below, you’ll be able to put a perfectly
straight edge on your board at the router table and, because
of the higher RPM of the router, you’ll find the freshly jointed
edge far smoother than any jointer machine can produce .
Install a 1 ⁄
2
" diameter (or larger) straight bit and set the
depth of cut to slightly greater than the thickness of
stock to be joined .
Adjust fence gap as necessary (see Gap Adjustment on
page 5) .
Adjust infeed/outfeed fences to the in-line/ mid-range
position as described on page 4 .
Adjust the location of the Wonder Fence at your
router table to place the outfeed fence in line with the
outermost cutting arc of the router bit . (A straightedge
placed against the outfeed fence can be used to help align the
fence with the cutter .)
Fig. 14 .
Micro adjust the infeed fence backward (-) . The reading
on the scale will represent the amount of stock you
wish to remove from the board’s edge on each pass . A
light cut (infeed cursor reading between -1 and -2) will yield
the smoothest results .
One of the most valuable features of the Wonder Fence is the
ability to offset the infeed and outfeed fences . The offset fence
adds a whole new dimension to the router table, allowing it to
perform two new operations – jointing, and shaping .
Fig. 13
Jointing
Offset Fence applications
Fig. 14
Jointing setup
First: Position Wonder
Fence to align fence
with cutting wing on the
router bit
Straightedge
Fig. 15
Shaping
Fig. 16
Shaping
setup
Outfeed
fence
Infeed
fence
Many shaping operations involve the removal of the entire edge
of a square piece of stock as it is moved past the cutter . Once
the stock is removed from the edge, it becomes necessary to
support the freshly cut surface by moving the outfeed fence
forward . Although similar to jointing, the setup is slightly
different . Here’s how:
Install router bit and set desired depth of cut .
Adjust fence gap as necessary (see Gap Adjustment on
page 5) .
Adjust infeed/outfeed fences to the in-line/mid-range
position as described on page 4 .
Adjust the location of the Wonder Fence at your router
table to achieve the desired cut profile . Use a scrap
piece of wood and make trial cuts to help in determining
the fence position .
Make a fresh test cut about 3" long on a piece of scrap
stock, then turn off the router . You’ll notice a gap
between the freshly cut surface and the outfeed fence,
Fig. 16 . Simply micro adjust the outfeed fence forward by this
amount to support the stock’s edge as it passes the cutter .
2
1
4
3
5
Outfeed
fence
2
1
4
3
5
Second:
Micro
adjust
infeed fence
backward
(-)
Infeed
fence
Jointing
shaping
Distance
between
stock and
outfeed
fence –
micro
adjust
outfeed
fence
forward
(+) by this
amount