Armored robotic octopus

Update!  Modified model-  After the comments, I increased the tolerance even more for freer movement of the octopus joints

Armored Robotic Octopus
Recently I like to create models with movable joints printed by Print-in-place, here I combined two types - horizontal and vertical joints. The head was created purely in my imagination
I recommend a layer height of 0.1mm-0.15mm for a finer surface of the joints. The tolerance of the parts is 0.2mm. The head can be rotated.

I also uploaded a test file with a few octopus links to test the printing.

I recommend more durable PLA for printing so that the links don't break.