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My Mini Mortar & Ammobox
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Keychain mortar that uses a spring from a pen to launch miniature mortar shells
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Model information
- Source
- Printables
- Category
- Other Toys & Games
- License
- Creative Commons — Attribution — Noncommercial — Share Alike

A miniature toy model of a Mortar Tube with a Ammo Box containing 8 Mini Mortar Shells.
It can be armed with small pieces of eraser, popcorn kernels, or small ball bearings.
You can scale it to fit the spring you are using, but it works standard with a spring from a pen.
(Do not use it on people or pets)
Model parts:
- My Mini Mortar v2.0
- Ammo Box v1.0
- Mini Mortar Shells v1.0
Parts needed:
- Spring from a pen
- A drop of glue
- Alternative: Keyring
How to assemble:

- Remove the support from the trigger.
- Loosen up all movable parts (base and trigger's built-in support) until they move freely.
- Insert the trigger into the tube, followed by the spring.
- Add a drop of glue into the base, then attach the tube.
You are ready to go!
Happy Printing!
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Feel free to contact me, if you have any suggestions for new or current models.