MakerBot's T-Rex Skeleton is a masterpiece. Too bad MakerBot refused to fix some obvious issues. Thus I made the following fixes to make the model printable:
--I fixed tail parts A and B. Both original parts, particularly B, were broken at the second piece. It made B utterly unprintable and A very fragile, if successfully printed. I solidified both parts.
--I separate arms, tail segments, femurs and tibias, and ribs. These tall and thin parts are very susceptible to being knocked over by the nozzle as it moves from part to part. In addition the frequent retraction makes these parts (if successfully printed) very poor quality and very stringy in-between. Printing individually is less prone to error.
Update: I found out that the best way to print the ribs is to print the entire rib cage on its side with support, for which I uploaded a new rib_cage.STL file. You must enable Support Interface (I use Cura, not sure what other slicers call this feature) though, otherwise the ribs will be impossible to be cleanly removed from support.
--I merged the neck H clip into the H clip file. It's a mystery why the original designer didn't.
--I included a merged one-piece base for those whose bed is large enough. No more seam on the base.
--Only left arm and ribs are included. Mirror them to print the right counterparts. Or print the entire rib cage with support
--Using 8mm of brim is strongly recommended for all parts except the H clips. It is easy to remove so no worries.
--You need very strong bed adhesion. On my Prusa i3 MK2S, the naked bed simply doesn't offer enough adhesion. The glue stick worked occasionally but mostly not. My best friend is Aqua Net Super Hold hairspray. It is great because 1) adhesion is stronger than ever and I didn't have a single part peeled off; 2) after removing a printed part you don't need to do anything but can just go on printing the next part. Don't buy it from Amazon. It's sold for only $3 at Walgreens! https://www.walgreens.com/store/c/aqua-net-professional-hair-spray-extra-super-hold-3-unscented/ID=prod5458027-product.
--I suggest grouping some tall and thin tail parts closely together so there will be enough cooling time.
--Although the original design was meant to be printed support-free, I suggest using support on a few parts: rib cage (on side), jaw, arms, neck, and tail tip. Make sure to use support interface so support is easy to remove. On my Prusa i3 MK2S, support from bed only at 75 degrees is enough.