INCRA HingeCrafter - Manual (Page 4)

Adjust the depth of cut on the bull nose bit so that
the roundover is centered on your stock thickness.
Sight down the front face of the fence and position
the fence so that it extends just slightly into the
profile of the bit,
Fig. 6. This setup will leave a tiny
flat on the end of your stock after cutting. This
flat is necessary to avoid snipe at the end of the
cut. It is a good idea to make a test cut to adjust
the depth of cut to match your stock thickness and
to adjust the fence position to leave a flat of only
about
1 / 16 ”.
FIG. 6
Bit and fence setup
Place the end grain of the hinge blank against the
fence and, using a good rubber soled push block,
move the stock through the cut. Repeat the cut
on the opposite end of the stock,
Fig. 7. The bull
nose cuts should always be made across the grain
as shown. Attempting to produce hinges with the
bull nose cuts made parallel to the grain will result
in hinge knuckles that splinter and break easily.
FIG. 7
Bull nose - first round
BULL NOSE - SECOND ROUND
Now stand the hinge blank on the rounded end
with the face grain against the fence and, using the
rubber soled push block, move the stock through
the cut,
Fig. 8. Apply downward pressure to keep
the hinge blank on the table. Repeat the cut on
the opposite end of the blank. After making the
bull nose cuts on all of your blanks, remove the bull
nose cutter and any auxiliary fence you may have
attached.
FIG. 8
Bull nose - second round
4 INCRA Woodworking Tools & Precision Rules
Hinge stock
Fence extends slightly
into radius of bit
Bull nose bit
Grain direction