Popular Woodworking 2003-12 № 138, страница 57

Popular Woodworking 2003-12 № 138, страница 57

Also drill holes to accept the T-nut in the back of the clamp block that works with the threaded rod. Then install the T-nut.

Test-fit all three rods through the holes with all the parts together. The steel rods should fit snugly in the sides and require gentle tapping with a hammer to drive them through.

Attach the T-track to the inside of the jig before gluing the jig sides and bottom together. Use pencil lines to locate the position of the bottom on the wider side during glue-up.

Next, make the stop blocks for the T-track from a length of hardwood. See the drawing below for their shape, which prevents twisting when tightening the knob.

Install the threaded rod using "Lock-Tite," a thread-locking adhesive, to secure the star knob to

Use a stacked dado set to make two grooves in the double-thick plywood side (left).The grooves will house the T-track and require a good fit, effortlessly achieved with Freud's revolutionary Dial-A-Width Dado (below).

the rod. Then add a nylon-threaded stop nut on the back of the jig to keep the rod in position. As a final step, I applied a piece of coarse sandpaper to the edge of the clamp as insurance against the work slipping. After a little sanding and breaking the sharp edges, the jig is ready to go.

Precise drilling is required to match the holes in the sides and clamp block, positioned here with the jig bottom against the fence. Note the shim spacer between the clamp block and bottom to allow clearance when

Work positioning stop block

no. let. item

dimensions (inches) material t w l

Exploded view

dimensions (inches) material t w l

□ 1

A

Side

l'/2

63/4

18

Plywood & hardwood

□ 1

B

Side

3/4

43/4

18

Plywood & hardwood

□ 1

C

Bottom

1^2

3

18

Plywood

□ 1

D

Clamp bottom

1

l3/8

l6

Hardwood

□ 1

E

Clamp side

3/4

23/8

l6

Hardwood

□ 3

F

Stops

3/8

7/8

23/4

Hardwood

Funding for this special pull-out poster provided by

1-334-4107 or freudtools.com

in use.