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BungieMax Shell v1.1

This is a series of rubberband-/slingshot-powered shells with 40Max form factor. They can fire Nerf darts.
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$6
6
1
154
updated April 28, 2025

Description

This is a 3D-printable shell from the GenCo Microwerks, made for 40Max-compatible blasters. It has the same form factor and is for people who either can't or won't deal with the whole HPA thing 40Max shells have going on.

Technically speaking, the MicroMax is a shotgun stringer. It can fire half darts in a side-by-side configuration and load up to six half darts. You can also put two full-length darts in there. It's primed with a ramrod (also printed). There are also shorter shell types in here, for a duo of half darts, if your blaster can't take longer shells. There's also trio and single shells now.

This file set comes with two trigger button types. One for regular blaster usage, and one embossed, for when you just want to manually carry this thing around as its very own holdout blaster.

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Printing

All parts can be printed on a bed of 180mm edge length, if just barely. Everything should already be in its proper printing orientation.

The assembly instructions can be found here -> https://wildwestscifi.net/bungiemax-shell-v1-0-assembly-instructions

Hardware

You will need 

  • 3x M3x20mm screws (counter-sunk, self-tapping wood screws. The ones with coarse threading.), 
  • 200mm/300mm of slingshot tubing, and 
  • two small zip ties.

The instructions outline where to put what.

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https://xfoxgames.etsy.com/listing/1780043080/bungee-max-from-genco-megawerks <- XFoxGames can make these for you, if you're in the US.

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Changelog: 
v1.0 
- Initial Release.

v1.1
- Added a 170mm singled shell variant that can hold up to 3 half darts.
- Added a 170mm tri shell variant that can hold 3x3 half darts.
- Added a 140mm double shell variant that can hold 2x2 half darts.
- Added a 140mm singled shell variant that can hold 1x2 half darts (or one long dart).
- Added a 140mm tri shell variant that can hold 2x3 half darts. (or 3 long darts)
- Added a 120mm double shell variant that can hold 2 half darts.
- Added a 120mm singled shell variant that can hold 1 half dart.
- Added a 120mm tri shell variant that can hold 3 half darts.
- Made the string channels of all shells 8mm wide. In case you want to multi-string those, or put in thicc rubberbands, for more fips. I have added a text file for string lengths depending on shells, too.

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Model origin

The author marked this model as their own original creation.

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