RC motor/flywheel tommy 20

I gutted an RC car I found at a thrift store to make this set of flywheels.  The wheels are 2.5in in diameter.  The cool thing about big flywheels is that the linear velocity, or the speed of the outside of the wheel, is in direct proportion to the diameter.  This means that all else being equal doubling the size of the flywheel will double the the velocity of the dart.

The big flywheels along with bigger motors and running it at 12-18v got ranges of around 100ft with some going way farther and some going way shorter.  I stripped 2 gears for the full auto mech before I realized I need to just run it with a 9v and power the flys separately.

This could fire both streamlines or fathead darts.

Tomicon

I threw this together a while back.  The reason I did this was because the tommy 20  shell fits URB motors perfectly.  URB motors and flywheels are much more powerful than any nerf flywheel system so this thing packs a punch.  At 16v it was getting over 70ft with chopped streamlines.

Oddly enough since most modders don't like flywheels the most useful part of this post for other people might be the tape I leave on the blaster.  When I have blasters that need specific screws to go into specific holes I just unscrew then cover the screw port with tape so everything stays in place till its ready to be put back together.

Double Nerf Drum Fed Tommy 20

The Darthramballs:

The Darthramballs, A double clipfed tommy 20 auto

This was one of the first mods I ever took on.
I used 1 or 2 9.6v RC batteries to power it. 19v + is also the reason why this ended up dead and being cannibalized for parts. When it was running it was ridiculously fun.

-Flywheels were extended with sections of PVC.
-Flywheels wrapped in electrical tape to catch streamlines.
-Mag wells are made from an old Rubbermaid bin using plastic welding.  The material is somewhat flexible so it can old the drums with just friction.

To allow this to be able to fire using 2 drums I to the arm that use to turn the tommy 20 drum and turned it into a 2nd dart pusher.  The two arms alternate pushing darts out of the clips into the flywheels.