This is based on the Giant enemy crab uploaded by BigSmokeisBae available here https://cults3d.com/en/3d-model/art/giant-enemy-crab

READ BEFORE PRINTING I made this for myself and as such the model has issues that I'm fine with but may be offputting for others.

• RECOMMENDATION: use the shell but find another crab. One of these https://cults3d.com/en/3d-model/art/killa-krabs or any other you may find and scale appropriately in the slicer. This will not only give you more options but also avoid the obvious polygons in the original crab.

• Somewhere along the line I managed to mess up the scaling between shell and crab, resulting in a crab that's a bit smaller than it should be (my estimation is between 10-15%). It works as is, but you may want to attempt to rectify this in the slicer.

• The crab is in places very low poly and obviously so. I used used tools to smooth out certain areas post printing.

• The ball joints in the limbs are tight and will probably require sanding to fit.

• The right claw was reported to contain multiple errors and I've removed it from the files. Mirroring the left could work but I haven't tried it.