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Published on Oct 22, 2007
KUKA industrial robot carving a pumpkin into a jack-o-lantern at the New Detroit Science Center. Actual time took a little over 2 minutes.
I could have made a system utilizing a rotary cutter to make a more elaborate face, but I could not deny a the creation of a knife/saw wielding robot.
After each part is cut a it is first speared, then a subroutine cleans the knife by passing it through a "fork" allowing the scrap to fall into a waste can.
Since I was going to be carving a number of pumpkins in various sizes, I had to fabricate a fixture system that would be flexible enough to to accommodate the different dimensions and present it to the robot in a consistent manner. This was accomplished by making the table adjustable in height and incorporating a removable gauge into it that would center the face of the pumpkin a consistent distance from the edge of the table.
Unfortunately, the robot does not clean out the pumpkin.