Nerf vulcan rapid-fire mod

A pretty quick one-night hack, the purpose of which ought to be pretty obvious given this project's title. If you've looked into a Nerf Vulcan, you'll know that it's drive and firing mechanism is driven by a DC motor, and making a DC motor go faster is easy: apply more voltage.

It was then short work of extracting my gun's battery compartment (which hadn't been opened since I first put batteries in it in the mid 2000s) and ripping out all its internal divisions (unfortunately, I haven't got any pictures of this process), which had originally served to separate and secure 6 D-cell batteries, and rewiring the thing to take a pair of XT60 plugs for my 3S quadcopter batteries (The two plugs connected the batteries in series). And - it doesn't work. It twitches a bit, but doesn't shoot at all

This took life HALF AN HOUR

This took life HALF AN HOUR

Now to disassemble it and find out why it's taken a particular disliking to my LiPo batteries. The screws are fairly easy to manage, but the goddam handle thingy you pull back to fire the gun manually is like permanently attached, and if you want it off, you will need to cut through the metal rod which connects the two handles. Which is made of iron or steel, not something easy like aluminum. And for which I had only a hacksaw to cut it with. Which took like half an hour.

Following that ordeal, I saw that attached to the motor, between the power leads from the battery and the motor leads, was a ferrite choke and some other passives. What did they do? I've no clue. But I disconnected and bypassed them, reassembled everything (minus, of course, that handle thingy which can no longer be properly reattached), and...

Voila! An about-2-times-faster-than-usual Nerf Gun!