by caigab

An undeneath box just for fit the electronics of an aduino Leonardo and the motor driver,
The other pieces are a fan and the cover for the box, simply glued to their relative positions, A couple of flat head with exaust just to increase the reality of the engine.

The motor is a stepper 5v chinese with geared box just fitted on the back of the crackshaft.

About the electronics, an arduino leonardo and a ulm2003 are needed but every other arduino model work fine with the appropriate sketch, if you want to replay my project, simply copy and load this sketch to your arduino:

include

Stepper myStepper(2048,8,10,9,11);

void setup() {

myStepper.setSpeed(14);
}

void loop() {

myStepper.step(-20480);
delay(3000);
myStepper.step(-512);
delay(1000);
myStepper.step(-512);
delay(1000);
myStepper.step(-512);
delay(1000);
myStepper.step(-512);
delay(1000);
}

with this sketch the motor run in loop: 10 turns in clockwise, wait 3 second and run 4 step every 90° to show the firing order.

Simply connect to your usb and enjoy

Print Settings

Rafts:                          

No

Supports:                          

Yes

Resolution:                          

0.3

Infill:                          

20

Filament:                                            GEEK PLA                                        BLACK

Post-Printing

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