Flexi Hermit Crab with 3 Shell Options
Print Profile(1)

Bill of Materials
Description
Flexi Hermit Crab with optional magnet attachment!
This is an articulated hermit crab with swappable shells! There is a pause to add hidden 8x3 mm magnets in cavities on the tail so the crab can securely swap between different shell styles if you want. If you dont need the crab to stay put so tightly you can just resume the print.
Features
- Flexible articulated hermit crab
- Magnetic shell attachment system
- Designed for 8x3mm magnets (Amazon link here)
- Easy mid-print magnet insertion using a pause
- Multiple compatible shell styles included
Printing Instructions for Magnet version
The crab body includes built-in cavities for magnets. There is a pause in the model just before the cavities are sealed where you can insert:
- 2 - 8x3mm magnets into the crab tail
Each shell requires:
- Matching magnet (of any size) glued into the shell interior before gluing the shell halves together
⚠️ Make sure your magnet polarity is aligned before gluing!
Included Shell Variants
This Model includes additional shell options adapted to work with the magnetic system:
- Classic Spiral shell
- Rounded shell variant
- Smooth shell variant
Credits / License
This uses models licensed under Creative Commons licenses. Full credit goes to the original creators.
Original articulated hermit crab model:
- “Articulated Hermit Crab” from Printables
https://www.printables.com/model/1142168-articulated-hermit-crab/files
Additional shell sources:
- “Seashell” from MakerWorld
https://makerworld.com/en/models/425710-seashell#profileId-2481032 - “Seashell Spiral” from MakerWorld
https://makerworld.com/en/models/1485401-seashell-spiral#profileId-1551852
Please support the original designers by checking out their work!
Boost Me (for free)
This model was made to make my wife happy and in compensation for her design contributions i'll buy her a coffee for every boost this model receives!

















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