Page 47 - Router Boss Manual

Cutting the Tenons

NOTE: For this procedure you’ll need the op-
tional UTC clamp to be mounted in right elongated
slot on the underside of the mortise table.

With the groove cut in the rails, we’ll use the
groove as a guide to cut the tenons for precise align-
ment. Clamp one of the rails against the MDF tenoning
fence (see Appendix 5) so the rail extends through the
hole in the mortising table and butts against the bottom
of the base plate. Adjust the clamp so it holds the work-
piece firmly against the table. An auxiliary clamp can
help keep the rail butted tightly against the fence.

TIP - It’s best to start with a scrap piece of stock
with the same dimensions as your rails and use
it to cut a test tenon so you can fine-tune the fit
before cutting your actual rail pieces.

Position the rail beneath the router, unlock the
router plate locking knob and slide the router out so
the bit aligns with the edge of the groove. Tighten the
router plate locking knob, then make a shallow test cut
to check your settings and adjust as necessary. When
you’ve got the setting correct, set a stop so you’ll be
able to replicate the cheek cut. Then repeat these steps
for the other cheek cut, setting a stop.

TIP - You can also use gauge blocks to set up
stops for the cheek cuts. With the router still
locked in the position used to cut the mortise and
grooves, insert a gauge block the thickness of the
bit between the router stop rod and the stop block.
Then move the gauge block to the other side of the
rod to set the stop for the back cheek cut.

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