This skimmer is printed for my pool to catch unwanted "animals", leafs etc. I found other designs at here and tryed to print but before I finished all parts of them, after half kg printed material, I gave up and decided to design a more economical one. It uses the jet of water pump to keep in right way. You need additional mosquito net or some other fabric as filter. You have to sew or glue it into a bag. There is two printed rings to hold this bag into right way, and four buoys to make it float. You may use some string to leash it to pump's output nozzle.
I tried mosquito net and curtain fabric as material of the bag. Mosquito net misses some tiny dirt to keep inself, but the water flow and behaviour is much better. Curtain filters all of the dirts, but almost stops water flow and therefore skimmer inclined to swim aside from jet.

Prusa

Prusa Clone

No

No

0.2 layer. 0.4 nozzle

15%