Print Joints fused

[henryhahn]

Good Afternoon,
My son has tried to print the hands for this item a couple of times now, and the printed joints all seem to fuse together. I have tried cutting apart with a razor and an exacto to no avail.
I am wondering if the fault is with the file, our settings, or if this is just something my printer can't handle?
CymonBotHandR_preview_featured.jpg

Here are some pics of how it printed: (I snapped the one hand trying to cut apart the joints)
20170911_185341_1508952096380_resized.jpg20170911_185357_1508952094278_resized.jpg20170911_190344_1508952091798_resized.jpg