Gutting chute over the gunwale
A chute that hooks over the rail and lets blood and guts go over the side instead of over the deck.
The problem
Gut a fish on the thwart and there is slime and scale left for the rest of the trip, with the knife rolling about between your feet. The rinse water ends up in the bilge.
The fix
The chute hooks over the gunwale on a lip and pulls up on a wing nut, with about eight degrees of fall out towards the water. A groove down one side holds the knife while you turn the fish over. The top surface is printed at 0.12 mm and ironed, because ordinary layer lines hold slime and will not rinse clean.
PETG is the choice: better in the cold than PLA and slower to yellow than ABS. This is deck kit, not a chopping board. A printed surface cannot be made hygienic the way a moulded one can, and the rules on materials in contact with food have to be checked before anything is sold for that purpose. The test is simple — throw a bucket of sea water over it and see whether it comes clean.
It is not made from materials approved for food contact, and must not be used as a cutting or working surface for food that will be eaten. It carries waste overboard — nothing more.
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