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.

The twelve piece burr

A GOOD NICKNAME for this puzzle is "The Intimidator," because all twelve pieces are identical, and taking the puzzle apart is as confounding as putting it together.

Make the pieces

1. Cut 4-1 /2" long blocks from square 3/4" stock, including extras for test cuts (Fig D, above).

2. Make a pair of 3/4" x 3/4" x 7/8" spacers.

3. Set up the saw and the jig to cut 3/8" by 3/4" dadoes.

4. Clamp the jig's right stop block 1-7/8" from the edge of the 3/4" slot.

5. Snug a 3/4" spacer against the right stop, followed by a test piece and the other 3/4" spacer. Butt and clamp the left stop block against the spacer.

6. Cut dadoes in a couple test pieces. Fit them together to check the dadoes'width and depth, and make necessary adjustments.

7. Cut this dado in all twelve pieces.

8. Flip the piece end for end and reinstall it between the two spacers. Cut a second dado in all twelve pieces. Both dadoes should be in the same face.

9. Rotate the piece one-quarter turn toward the dado set and reinstall it with both 3/4" spacers on the left.Cut this dado in all twelve pieces.This last cut creates a tab, which can be used to help assemble the puzzle.

Fig. D Dimensions

ALL PIECES: 3/4" x 3/4" x 4-1/2" JIG SET-UP DIMENSION: 1-7/8"

Fig. D Dimensions

ALL PIECES: 3/4" x 3/4" x 4-1/2" JIG SET-UP DIMENSION: 1-7/8"

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