Cat drinking pond
by JohK, published
All corners and edges are nicely rounded so your tippy-toe doesn't hurt itself - also it looks much better.
L**** the cat: "Yay, I can haz water *purr*"
Got inspired by the "pond for small animals", my thing is a complete redesign though.
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Example of additives
It's not the corn that will kill you, it's the additives. I've only seen one brand of PLA stating FDA approved for food contact. I'd be cautious of PLA from china or any where the actual manufacturer is not known.
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Please make sure to use a "food safe" plastic to not put your pet's health at risk. Extruding the plastic through a brass nozzle might increase the lead content of final product. (Also see the discussion below)
I got good results with PLA, .35mm nozzle at .2mm layer height. I also used 4 perimeters and 5 top layers to make it watertight. You might get away with fewer layers and perimeters, but I didn't want to take a risk.
Then go and find some empty PET-bottle (no pun intended) that has a PCO028 thread (coke bottle, or similar thick-walled bottle). Fill the bottle with water and screw it into the socket of the pond. I would suggest the small .5l or the 1l size at max. any bigger than that and the pond will probably tip over quite easily.
I designed this thing to be massive and survive everyday use: before you print, double check the gcode so you don't waste plastic on a useless non-watertight print.
If you already have a bowl that you like to use with a bottle as a reservoir you can also print the cat-drinkpond-tower.stl, which basically is a stand for the bottle with some openings. You'd have to fix the bottle somehow to avoid that your cat tips it over, though.
I got rid of the "work in progress". The thing is massive and if I need another copy, I will probably go back and tweak the design a bit in order to save some plastic. Until then it works the way it currently is. Also I'm very satisfied with the threaded socket, it holds a 1 liter bottle very firmly.
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