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, tails and all 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 the way to go.
--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.
Printing note:
--Only left arm and ribs are included. Mirror them to print the right counterparts.
--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 (disclaimer: I have no financial relationship with Walgreens).
--For thin and tall parts such as ribs and tail and, to some extent, arms, be sure to slow the printer down to 50% or so to allow sufficient time for cooling, otherwise quality will suffer greatly.
One more thing: ProtoParadigm's Woodchip PLA has the dried-bone color perfect for this print. http://www.protoparadigm.com/ingeo-pla/woodchip-PLA-1KG (disclaimer: I have no financial relationship with ProtoParadigm).
Happy printing!
