STEP 21

F it the wood disk into the top of the tube. The electrical cord and the windows should be on the bottom.

STEP 22

N ext, mark four spots on the Burke tube, spaced equally apart, where the wood disk and the tube meet. Put on your safety glasses. Using the 1/8" bit, drill the holes. Screw the 3/4" #6 pan head sheet-metal screws into the holes.