Kreg PRS4034 Instrucciones De Instalación página 5

D
⁄ "
3
8
E
Routing guide
Masking
tape shim
Double-faced tape
F
Drill 1½" hole
⅜" deep
G
Routing Guides
Radius corner formed by
Forstner bit
Precision Insert Plate Installation
Form the insert-plate opening in your router table top
Rabbeted opening method
Router
1. Position the insert plate on your router table top, squaring the plate with the
table top
table. Trace around the plate with a pencil. Remove the plate. To form areas to
anchor the four ¼-20 x 1 ¾" flathead machine screws (lock-down screws) that
secure the insert plate to the router table top, draw 45° lines across each corner
of the outline to form triangles with 1 ¾"-long legs [Drawing D]. Draw lines ⅜"
inside and parallel to the traced insert-plate outline.
2. To provide clearance for installing and removing the insert plate, adhere
strips of masking tape to all four edges of the plate. Then apply small pieces of
double-faced tape to one face. (Use just enough tape to keep the plate in place.
Too much tape will make the plate hard to remove later.) Reposition the insert
plate on your router table top and firmly press it into place.
3. Cut four ¾ x 3½ x 15½" scrapwood routing guides. Apply double-faced tape
and adhere the routing guides to the router table top with the edges against the
masking tape strips on the insert plate edges [Drawing E]. Remove the plate.
Chuck a 1½" Forstner bit into your drill press. Drilling test holes in the area of
the router-table top you'll remove for the insert plate, set the drilling depth to ⅜".
With the edge of the bit just touching the inside faces of the routing guides, drill
a ⅜"-deep hole into the router-table top at each corner [Drawing F].
4. Drill a blade-start hole inside the pencil lines. With the outside edge of your
Drill bit
jigsaw base riding on the routing guides and the inside edge supported by a
touches guides
¾"-thick scrapwood block, cut just inside the lines, leaving the ⅜"-wide area
inside the insert-plate outline as well as the triangular areas at each corner.
5. Chuck a top-bearing pattern bit with a ¾" cutting length into your router.
Adjust the cutting depth to the thickness of the insert plate plus the routing
guide. Make test cuts in scrap stock to ensure that the cut depth exactly
matches the thickness of the insert plate. Rout the perimeter rabbet and the
corner triangles in several passes until the pattern-bit guide bearing runs
smoothly against the edges of the routing guides [Drawing G]. Be sure to stop
routing along each side where the ¾"-radius corners formed by the drilled holes
meet the routing guides. Carefully remove one routing guide and test-fit the
insert plate in the opening. If the rabbet is too shallow, replace the guide, adjust
the routing depth, and re-rout the rabbet. A too-deep rabbet can be shimmed
with tape. When satisfied with the fit, remove the routing guides.
6. With the insert plate in place, use the countersunk corner holes as guides
to drill ¼" holes through the triangular corner areas in the table top. Secure the
plate with the lock-down screws and your own washers and hex nuts or wing
nuts. For greater convenience, remove the insert plate, enlarge the holes in the
table top, and install T-nuts.
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