This is, perhaps needless to say, unconventional, but there are some good reasons that motivate this build.
- 18 rounds really isn't much when you are in a lightly-armed group and have to do more than your fair share of chargebusting and such. My preferred playstyle focuses on stunning zombies aggressively and protecting the group.
- Reloading in the middle of an engagement is awkward at best and dangerous at worst. Simply tapping another magazine higher into its magwell when the current magazine is low would be much better.
- Missiles, including Demolisher missiles, have special significance under some rulesets, such as those used at Waterloo.
- This system allows all three magazines to be active simultaneously - and, sometimes, you just want to make it rain foam.
Right now, the prototype is disassembled, and the hotglue has almost all been cleaned off. As an aside, hotglue has a bad reputation in Nerf, as noobs like to misuse it as a structural adhesive. It isn't hard to find people saying things like "The only thing that hotglue is good for is holding things in place while the real adhesive sets". I would agree with this attitude, except for the fact that hotglue is also good for gapfilling, securing low-temp electronics, impromptu weatherproofing, diffusing light from LEDs, rapid prototyping . . . in short, it has a lot of uses, and the fact that it has one prominent misuse shouldn't discredit it as a material.
Blade 180 installs and a diode-based adjustable power setting are planned upgrades but will not be present in the initial build. The current requirement for three sets of motors will be fairly large, especially with blades, so I am considering setting it up in such a way that only the flywheels whose corresponding magazine is active will be powered. As using the stock screws to hold the shells together is infeasible, I'm thinking of using magnets.
In short, this is going to be an all-around unusual and unconventional build.