Burr Puzzle

This simple burr puzzle is cut from 9mm poplar (mostly because I couldn't find my 10mm perspex. It is made from 12 identical pieces but the parts need cuts in 2 axis. This is achieved by cutting the first side and then flipping the piece within the hole.(svg here)

This picture shows the various steps number from top to bottom, normally I would cut 6 pieces at once and this picture is for illustration only.
  1. Cut the outline and the cut outs for the first piece.
  2. Remove the piece, being careful not to bump the outline
  3. Remove the shrapnel from the hole
  4. Insert the puzzle piece back into the hole but rotated through 90 degrees.
  5. Cut the next set of cut outs
  6. Remove the finished piece from the outline.