Progress Post
We went back to the machine lab to cut out a circle out of wood for the inside of the PVC pipe, so the pet food will not fall down on its own. The circle turned out to be a little too big, so we filed it down so it will not get stuck at the edge of the PVC pipe. We also asked the professionals in the machine lab what would be best to glue PVC pipes together, and they recommended PVC cement.
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