Howdy, Here is how I made the Isometric cubes for my Geo Segmented Bowl.
The Isometric Cubes are individually cut and glued together as a cube and then I glued cubes together. I start off by cutting strips 3/8†thick and 1/2†wide of each wood species. Then using a table saw sled I cross cut them at a 30 degree angle and 1/2†long. This produces the diamond shape. It is important that the length and width are equal. You could cut three diamond shaped strips, glue them together then cut them to the desired thickness but this would produce cubes with end grain and I did not want that. The cubes for the bottom of the bowl were then glued together to cover a 4†diameter circle.
The cube sides for the top rim needed to trimmed so that the sides were not parallel but rather at a 5 degree angle to their centerline. I made another sled with "V" shaped cradles on each side of the saw kerf angled at 5 degrees. Again I glued cubes together to form segments of three and then glued the segments together until the ring was completed. I filled in with the Rosewood wedges inside and out. I did allot of experimentation and this process seamed to work best for me. I have to add that I used a 4†Dremel table saw to cut the small pieces from the strips. The blade has a 1/16†kerf which keeps the waist down, provide more control and I felt a safer process. I hope this helps.
Walt
(moderator edit to add link to Walt's bowl)
Geo Segmented Bowl is pictured here
The Isometric Cubes are individually cut and glued together as a cube and then I glued cubes together. I start off by cutting strips 3/8†thick and 1/2†wide of each wood species. Then using a table saw sled I cross cut them at a 30 degree angle and 1/2†long. This produces the diamond shape. It is important that the length and width are equal. You could cut three diamond shaped strips, glue them together then cut them to the desired thickness but this would produce cubes with end grain and I did not want that. The cubes for the bottom of the bowl were then glued together to cover a 4†diameter circle.
The cube sides for the top rim needed to trimmed so that the sides were not parallel but rather at a 5 degree angle to their centerline. I made another sled with "V" shaped cradles on each side of the saw kerf angled at 5 degrees. Again I glued cubes together to form segments of three and then glued the segments together until the ring was completed. I filled in with the Rosewood wedges inside and out. I did allot of experimentation and this process seamed to work best for me. I have to add that I used a 4†Dremel table saw to cut the small pieces from the strips. The blade has a 1/16†kerf which keeps the waist down, provide more control and I felt a safer process. I hope this helps.
Walt
(moderator edit to add link to Walt's bowl)
Geo Segmented Bowl is pictured here
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