This product is a 3D printed toy helicopter. The toy will utilize code to perform tasks such as turning on and off lights, spinning the helicopter blades and creating sound. A battery pack is required to power the CPX, which will hold the code to power the servo motor attached at the opposite end.

Supplies

Adafruit Circuit Playground Express Base Kit (CPX)
Continuous rotation micro servo
3D printer
Hot glue
Cuticle cutters
batteries
makerbot sketch printer
PLA material

Step 1: Design & Print

Download and print the following STL files using a 3D printer. Use rafts and supports when necessary.
These files were designed using TinkerCAD
Helicopter body:
add supports

Helicopter tail:

Rotors:

recommended to print with a raft

Helicopter legs:
Helicopter rear rotor
Non TinkerCAD files
CPX Mount from Adafruit’s Snap-fit Mount: downloaded from Thingiverse

Servo Mount:

STL files must be imported into CloudPrint
Set printer type to match the type of printer in use
On sidebar click support type and change it to breakaway material
On sidebar click under base layer and change to raft
Watch preview and download the makerbot file
Import makerbot file onto flash drive
Place flash drive into printer input and begin print

Step 2: Code

Follow the instructions to install CircuitPython onto your CPX
Plug in your CPX
Once this is done, convert your CPLAYBOOT (the CPX folder accessed when the CPX is connected to a laptop) to CIRCUITPY
Using the learn.adafruit.com website, write a few ‘if’ statements in the Mu Editor to have each button or switch accomplish a goal of the CPX. Name the file code.py
Save code.py to CIRCUITPY
The provided code will:
Cause the lights to flash different random colors when button B is pressed
Cause the motor to rotate clockwise when button A is pressed
Cause the motor to stop rotation when the switch is flipped
Causes the CPX to play an elephant noise on repeat with the CPX is switched