Materials:
For Steps 1 and 2
1 * 42STH33-0404AC stepper motor
1 * L293D ic chip
1 * power jack
1 * 12 VDC power supply
1 * Arduino kit and its contents
Here I made a mistake with the connection of two wires. I didn’t connect them to the circuit. And at first, I connect my wires to the 5v power directly. But actually I should use the positive side of the breadboard to connect to make my circuit neater.
For Step 3
2 * Laser-cut short arms
2 * Laser-cut long arms
1* Laser-cut motor holder
2 * 3D printed motor coupling
5 * Paper Fasteners
1 * Pen that fits the laser-cut mechanisms
Paper
Due to the lack of ink, our picture is pretty light.
Question1:
I’d like to build a machine that can change its movement through my oral instruction. I think the stepper motor is the actuator here. We need to control its turning direction and control its turning speed and angel to control our drawing.
Question2:
Scratch Series is a sound installation that sends different sounds by controlling different rhythms of scratching. The controller pulls the scratches according to certain tracks. You can control the sound by changing the tracks. Our Drawing Machine project is similar to it. We can change the potentiometer to change the movement of the drawing machine. Then to change what we draw. In essence, the two project both change the outcomes by changing the movement of the medium.