Fully Articulating Human Spine

This is an articulating human spine model. I made it primarily as an educational tool, but it can also be a decorative piece or just a fun print to build and assemble. The model is based off of a spine from the NIH 3d project website, which hosts free, open sourced anatomic models. I took a spine model, straightened it in blender to allow for better printing, and then adjusted the mesh of some vertebrae to further improve the final print quality. I then bisected the vertebrae and added a TPU core that can be placed between the vertebrae to allow for realistic flexion and movement. There is some post processing and assembly required for this model. TPU is HIGHLY recommended for the core. PLA is what I used for the vertebrae. Super glue or some other bonding agent is required. Small clamps are not required, but they can help. Supports are needed for the model. I used tree supports with success. You can print at whatever resolution you want. I found that at 0.2mm, the supports were easier