This print-in-place “Happy Halloween” spine is fun to print and feels really weird to hold and move.

See here for video: https://youtu.be/1uJ-5xu7dJw

See here for stable download: https://thangs.com/mythangs/file/27750

The spine must be printed as oriented, with the spinous processes point up. Changing the orientation of the file will result in improper printing of the inner ball joint between adjacent vertebrae.

The transverse processes that stick out sideways do not need support. Therefore, you only need to support the base of the vertebral bodies and the top loop.

You’ll have to plan your support well in order to adequately support the curved bottom surface of the vertebral body. A suggested technique using Cura is to raise the object of the build plate by 3mm, and then add tree supports underneath. Switch “Support distance priority” to “xy overrides z” and tighten up the “xy support distance” to 0.1mm.

After printing there will be some small adhesions on the inside ball joint and in the facet joints. Just do some gentle spinal mobilization and they will release and move freely. Be sure to let your print fully cool first! If the plastic is still soft, the connector may break when you try to move it.

This spine was made using the “Custom Embossed Spine” pieces. Follow instructions to make your own! https://www.thingiverse.com/thing:4916377

If you aren’t able to make your own, I will do my best make you a custom spine file in exchange for one (or more!) of the following:

1. Drop me a few bucks via the “Tip Designer” link here on Thingiverse, or…
2. Post a “Make” of your print here on Thingiverse, or…
3. Post a picture of your print on Instagram and tag me at @davemakesstuffbc, or…
4. Whatever other bartering arrangement you would like to suggest!

Message me with the following:

1. Your spine name or message
2. Size of your build plate
3. Your preferred “payment” method
4. An email to send Dropbox link to

Note that these are not anatomically correct! For design purposes, each vertebra is modelled off of the same vertebra, L3. The vertebral foramen has been filled in to provide strength and minimize overhangs, and the articular processes have been considerably reshaped to allow smooth movement.

Here are more of my anatomical designs you might enjoy:

Novelty:

Wearable Spine: https://www.thingiverse.com/thing:4982223
Skull Jewelry Set: https://www.thingiverse.com/thing:4980129
Happy Halloween Spine: https://www.thingiverse.com/thing:4979522
Eyeball Windchime: https://www.thingiverse.com/thing:4978632
Fingerbone Windchime: https://www.thingiverse.com/thing:4962956
Skull Windchime: https://www.thingiverse.com/thing:4962814
Creepy Custom Embossed Spine: https://www.thingiverse.com/thing:4916377
Mini Articulating Spine Keychain: https://www.thingiverse.com/thing:4891846
Big Bowl O’ Back Bones: https://www.thingiverse.com/thing:4881377
Vertebral Stacking Blocks: https://www.thingiverse.com/thing:4868387
Anatomically Correct Voronoi Heart: https://www.thingiverse.com/thing:4636146
Vertebrae with Secret Compartment: https://www.thingiverse.com/thing:4633188
Brain Puzzle: https://www.thingiverse.com/thing:4158232
Anatomical Heart Puzzle: https://www.thingiverse.com/thing:4146688

Educational:

6-Piece Magnetic Female Pelvis Model: https://www.thingiverse.com/thing:4946668
Fryette’s Laws Teaching Tool: https://www.thingiverse.com/thing:4887712
Hip and Pelvis Model: https://www.thingiverse.com/thing:4875641
Flexible Three-Quarter Spine Model with Display Stand: https://www.thingiverse.com/thing:4863003 Full Size Anatomically Correct Human Foot Model: https://www.thingiverse.com/thing:4849504
Full Size Anatomically Correct Human Hand Model: https://www.thingiverse.com/thing:4841107
Full Size Anatomically-Correct 18-Piece Magnetic Human Skull Model: https://www.thingiverse.com/thing:4830026
Full-sized Anatomically Correct Articulating Spine: https://www.thingiverse.com/thing:4801717
Articulating Lumbar Vertebrae: https://www.thingiverse.com/thing:4637241