BozInOz
14th August 2008, 04:21 PM
Recently I've made a few 6 piece burrs as presents. I thought it was a nice way to practice some technique and quite fun to make and challenge people with.
My lovely wife thought this was great and she wanted some to give some away. Only problem was it takes me about 2 hours to make one.
So I made a jig.
Pics are pretty explainatory. 10mm router bit, extending into the jig 16mm (6mm MDF, 10mm pine) Triton router table with fence moved back and fixed.
Action is simple. Piece in. Spacers as needed. Slide it through using fence as guide. Cuts a 10x10mm hole into the 20x20x60mm pieces of wood. (I used jarrah, blackwood and maple). A bit of sanding, a bit of oil, and presto.
Limitations. Obviously can't do notched pieces, you'd still have to chisel part of it out. I used a piece of pine to hold the work horizontal but downward pressure upgrade needed.
Burr designs from http://www.research.ibm.com/BurrPuzzles/
My lovely wife thought this was great and she wanted some to give some away. Only problem was it takes me about 2 hours to make one.
So I made a jig.
Pics are pretty explainatory. 10mm router bit, extending into the jig 16mm (6mm MDF, 10mm pine) Triton router table with fence moved back and fixed.
Action is simple. Piece in. Spacers as needed. Slide it through using fence as guide. Cuts a 10x10mm hole into the 20x20x60mm pieces of wood. (I used jarrah, blackwood and maple). A bit of sanding, a bit of oil, and presto.
Limitations. Obviously can't do notched pieces, you'd still have to chisel part of it out. I used a piece of pine to hold the work horizontal but downward pressure upgrade needed.
Burr designs from http://www.research.ibm.com/BurrPuzzles/