Woodworking Archive

Plywood backs

Once the pendulum case has been attached to the lower case, Vi" plywood backs can be screwed into rabbets routed around the back edges of both cases.

rout rabbets. First, lay the entire assembly face down across a pair of saw-horses. Then rout a W'-deep and W-wide rabbet around all four inside edges of both case openings, see Fig. 15. I did this with a rabbetting bit in the router. (For more 011 routing on the edge of a workpiece. see Shop Notes, page 16.)

With a chisel and mallet, square up the rounded corners of each of the rabbets.

cut panels. Now measure the size of each of these openings and cut a lower case back (I) and a pendulum case back (L) to fit from VV' plywood.

Also measure and cut a dust panel (J) to lay flat in the bottom of the kickboard assembly. see Fig. 15.

attach panels. Install the dust panel (with brads), and both case backs (with No. 6 x W Fh woodscrews). see Fig. 16.

lower case

FRAME B

pendulum case case side

frame b note:

SIDES ARE FLUSH WITH BACK OF B FRAMES

note

FLUSH AT

BACK

HBxI'i" Fh WOODSCREW

pendulum case case side

frame b note:

SIDES ARE FLUSH WITH BACK OF B FRAMES

frame b note

FLUSH AT

BACK

lower case frame b

FRAME B

frame d

HBxI'i" Fh WOODSCREW

LOWER CASE BACK

Fh WOODSCREW

SQUARE UP ROUNDED CORNERS WITH CHISEL

note:

RABBET AU FOUR INSIDE EDGES OF OPENINGS

pendulum case back

lower case back a/

lower case dust panel

LOWER CASE BACK

Fh WOODSCREW

SQUARE UP ROUNDED CORNERS WITH CHISEL