Fig. C Dimensions ALL PIECES: 3/4" x 3/4" x 2-1/2" JIG SET-UP DIMENSION: 1-1/4" PIECE A
3/8" x 3/4" DADO ( T Y P. )
1/2" 1-1/4" 1-1/2"
The six piece burr B Y A L L ACCO U N T S , this burr is the
most well known, because the six pieces can be notched in so many different ways and still assemble to create the same form.
Make the pieces 1. Cut 2-1/2" long blocks from square 3/4" stock, including extras for test cuts (Fig. C, above). 2. Set up the saw and the jig to cut 3/8" by 3/4" dadoes. 3. Clamp the jig's right stop block 1-1/4" from the edge of the 3/4" slot. 4. Snug a 3/8" spacer against the right stop,
P I E C E S D, E, F
followed by a test piece and the remaining 3/8" spacer. Butt and clamp the left stop block against the spacer. 5. Cut dadoes in a couple test pieces. Fit them together to check the dadoesâ€™ width and depth, and make necessary adjustments. 6. Set aside Piece A; it's already done. 7. To complete Piece B, install it in the jig with a spacer at each end and cut a dado. 8. Repeat Step 7, using Pieces C, D, E and F. 9. To complete Piece C, rotate it one-quarter turn toward the dado set. Install it with both
spacers to the left and cut a second dado. 9. Repeat Step 8, using Pieces D, E and F. Complete these pieces by moving both spacers to the right and cutting a third dado.
ASSEMBLE THE PUZZLE 1. Connect Pieces C and D. 2. Drop in Piece E from the top. 3. Slide in Piece F from the front. 4. Slide in Piece B from the side. 5. Slide in Piece A from the front.
To see videos of solving these puzzles go to: www.AmericanWoodworker.com/burrpuzzles
C STEP 2
STEP 5 A
J U N E / J U LY 2 0 0 9
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