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I twice tried printing the LFS_elephant.STL on my MakerBot with PLA and the default settings. Both times the print looked good, but when I took it off the built platform the legs were quite stuck. Both times the axel broke when I tried to articulate them. Any ideas what I'm doing wrong?

In your photo above there is clearly no plastic connecting the top of the leg and the bottom of the elephants body. But in my print there are lots of bits of plastic connecting those.