The BUZI - Firing and Shell-ejecting Toy Blaster
Print Profile(1)
Bill of Materials
Description
The BUZI: UZI inspired Toy Blaster.
IMPORTANT: This is a toy that fires a projectile! Never fire at pets or unwilling participants. This can damage drywall and eyeballs, use caution and protective eyewear. Never brandish this as a real weapon or bring it out in public. Just because you know it's a toy, doesn't mean other people will. Make sure to check your local laws regarding replica firearms/ toy guns. Enjoy, be safe, and be smart!
The BUZI is my first attempt at designing a functional blaster in a pistol format (trigger in front of magazine). It turns out I was way overthinking how to design the mechanism and I just had to move it out of a 2d plane. Its not my most powerful blaster, but it is functioning very well for me and has fairly low hardware needs and only 15 printed parts. Uses the same bullet and casing as all of my other shell ejecting blasters.
Assembly Video:
How to use:
- Load the magazine with assembled projectiles (Max 7).
- Insert magazine into the BUZI, make sure the magazine catch securely latches the magazine in place.
- Pull the charging handle back until you hear the striker click into place.
- Release the charging handle and allow it move all the way forward.
- Point at your target and squeeze the trigger.
- Pull the charging handle back and make sure the spent casing is ejected.
- Repeat steps 4-6 until magazine is empty, the bolt will no close all the way when the magazine is empty.
- Press the magazine catch and pull out the magazine.
- Attempt to find the projectiles :P
Hardware Needed:
| PART: | NUMBER NEEDED: |
| M3x14 mm Machine Screw | 2 |
| M3x16 mm Machine Screw | 1 |
| M3x18 mm Machine Screw | 2 |
| M3x30 mm Machine Screw | 4 |
| M3 Hexnut | 9 |
| 0.5x5x20 mm Compression Spring | 2 |
| *0.8x10x85 mm Compression Spring | 1 |
| *0.6-0.8x10x125 mm Compression Spring | 1 |
| *0.8 - 1.0x10x80 mm Compression Spring | 1 |
*Can be found in 305mm lengths from AliExpress or Temu, the rest of the parts are fairly common and can be purchased from Bambu Labs or the hardware store.
Tools Needed:
- Screwdriver/Allen key
- Wire Cutters
- Superglue
Printed Parts:
Filament: This model has only been tested with PLA and PLA-CF
| PARTS: | WALLS: | INFILL: | SUPPORTS: | PURPOSE: |
| Upper Frame | 4 | 15%+ | Organic | Holds the firing components. |
| Lower Frame | 4 | 15%+ | Organic or Regular | Holds the trigger and Magazine Components. |
| Rear Frame | 4 | 15%+ | None | Holds in the bolt and striker spring. |
| Trigger | 4+ | 15%+ | Regular | Moves the striker latch. |
| Striker Latch | 4+ | 15%+ | Regular | Holds the striker under spring pressure. |
| Bolt | 4+ | 15%+ | Organic | Cycles and Ejects ammunition, hold casing in place while firing. |
| Striker | 4+ | 15%+ | Regular | Propels the projectile from the casing with percussive force. |
| Charging Handle Bar | 4+ | 15%+ | None | Connects the charging handle to the bolt. |
| Charging Handle | 4 | 15%+ | Regular | A grip for manipulating the bolt. |
| Barrel | 4 | 15%+ | Organic | Decorative. |
| Magazine Catch | 4 | 15%+ | None | A button release for securing and dropping the magazine. |
| Rear Sight | 4 | 15%+ | None | Adjustable rear sight. |
| Magazine Frame | 4 | 15%+ | None | Holds the bullets and follower. |
| Magazine Base | 4 | 15%+ | None | Holds the spring in the magazine. |
| Magazine Follower | 4 | 15%+ | None | Guides the bullets up the magazine. |
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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