We have also changed the design of the "claws" used to push balls around by our MCM. The previous design had too small a choice of holes, and the laser-cutter cut the pieces out from too close to the edge of the plate of material resulting in an inexact geometry for two of the claws.
The new claw has two tapered holes of radius 1/8th an inch. We have also made the section where the claw is connected to the plate perpendicular to the edge of the plate, and the positions of the holes are far enough in to give additional security.
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