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- 14 - Woodstock Intl., Inc. W1099
XIV. TROUBLESHOOTING
C. INCOMPLETE FIT
An incomplete fit occurs when the side piece
protrudes from the end of the front or back piece.
Figure 17.
Cause: The distance between the edge of the side
piece and fence is set too narrow.
Remedy: Adjust the fence toward the back of the
jig by the same amount that the tails protrude out.
To adjust the fence:
1. Make a reference line indicating the cur
-
rent position of the fence either on a piece
of masking tape located on the jig or on the
sample piece clamped under the fence.
2. Measure the distance that the tails protrude.
3. Loosen the fence locking knobs and slide the
fence toward the back of the jig by the same
distance.
4. Ensure that the fence is parallel to the edge of
the workpiece and tighten the lock knobs.
A. TEAR-OUT
When cutting across the grain of the wood, tear-
out or splintering may occur when the router
bit exits the workpiece. To prevent tear-out, you
may scribe a line on the side piece with a sharp
knife or awl at the same distance down that router
bit will cut. Tear-out can be eliminated or reduced
by backing up the workpiece with a scrap piece or
simply using extra care when operating the router.
B. EXCESSIVE FIT
If the pins on the side piece fit too deeply in the
tails of the front or back piece, the cut is too deep.
Figure 16.
Cause: The distance between the edge of the side
piece and fence is set too wide.
Remedy: Adjust the fence forward by the same
amount that the pins are exposed. Refer to the pro
-
cedure described above for fence adjustment.
Figure 17 shows incomplete fit.
Figure 16 shows excessive fit.