MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I have no problems printing them on my Prusa i3 MK2S, they turn out perfect; but using my Wanhao 3 Plus the mouth is slightly deformed and lifting the tail just pushes the tongue into the front of the mouth rather than down. Pulling the tongue manually down a bit makes it work as intended, but every time there is nothing in the mouth and I want to open it, it's the same rigmarole of having to get my fingernail in there and pull the tongue down a bit before lifting the tail.
Moral of the story, get a 3D printer that prints accurately. The Ratz rock. Prusa beats Wanhao for accuracy by miles. As the price would indicate ;)