3D Printed Toy Helicopter

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.

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

• 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

• 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

• Remove supports using cuticle cutters 
• Sauter wires onto CPX
• One wire should be sautered to VOUT
• One wire soldered to A1
• Third wire soldered to GND next to A1
• Place the CPX mount on the front of the helicopter face
• Hot glue on foundation
• Once dry place CPX in mount
• Place the servo motor mount…
• Hot glue on foundation
• Once dry place motor in mount
• Connect brown servo wire to GND
• Connect red servo wire to VOUT
• Connect yellow servo wire to A1
• Place 3 AAA batteries into battery pack
• Glue the battery pack next to the servo motor
• Glue tail, rear rotor blades and legs onto the helicopter

• Turn on the Helicopter by sliding the on switch on the battery pack
• Press button B for the lights to turn on 
• Press button A for the rotor blades to spin 
• To stop the motor and play a sound, flip the switch below the buttons
• When done, slide the battery switch to off when not in use.