SBA3 shape maintainer with o-ring slot
thingiverse
Remixed from original design found here https://www.thingiverse.com/thing:3961852 created by Bdillahunty. This is a fantastic original design. Added a slot on the backplate pin to install an o-ring. This will provide friction so the parts stay together, without actually securing them with any fasteners. This assures that the shape maintainer will not fall out while handling the brace. Also split the two parts so they can be printed individually with or without the o-ring slot.
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