Fast Bullet Launcher

I originally planned to make a car powered by Chat GPT but because of lesser amount of available time, I am making this Nerf Bullet Launcher. This thing shoots bullets very fast. I first learned about this roller technology when I was 10. I opened up a nerf gun and found it. 4 years later, here I am. Lets see how to build it.

The materials that I used:

1. A 1400 KV Brushless DC Motor
2. A 850 mAh 11.1v 3 cell li-po battery
3. 2 L-Shaped supports (I somehow didn't have it so I am using 2 boxes)
4. A 30A ESC
5. A Servo Tester
6. A normal wheel
7. A nerf bullet
8. Some ice cream sticks and some screws

The tools that I used:

1. A hot-glue gun
2. A soldiering iron or a drill

Drill or make 4 holes by heating the ice cream sticks with the soldiering iron. The positioning must sync with the holder given with the BLDC Motor.

Attach the holder with the BLDC Motor with the given screws. Then attach the whole thing to the two ice cream sticks. Then attach the wheel to the BLDC Motor.

Attach the L shaped structure to the bottom of the ice cream sticks. (I am using a mint box, don't ask me why)

On the side of the box or the L shaped structure, attach a ice cream stick, vertically.

Taking the vertical position of the wheel into account, attach another horizontal ice cream stick, this will be the horizontal guide for the bullet.

Now with another box or L-shaped structure, attach another ice cream stick on the lower side. This will be the vertical guide for the bullet.

I had also created a 3d model by tinkerCad but there is an embed error. If anyone wants it, I will send it to them personally.

There are three wires coming out of the BLDC Motor. We will have to attach them to the three wires of the ESC (Mostly blue). the yellow one of the BLDC always connects to the middle. The outers can be switched to switch the rotation direction. Connect them as your liking. The smaller 3 wires of the ESC (similar to those in a servo) has to be connected to the out port of the servo tester. The big red and black wire has to be connected with the battery.

If everything goes good, the servo tester should light up blue and the motor should make two beeps.

Turn up the potentiometer and drop the bullet. It should go out with stunning speed.

I hope you liked this tutorial. Many Improvements can be made, if you guys want it, I will be more than happy to publish a v2.