Page Comparison

Gantry mechanism

Gantry mechanism

Gantry mechanism

Parallel kinematics

• 3 Brush pens

• Pushed one by one by a motor

3 constant colors:

• 2 rollers with acrylic paint

• 1 marker

Brush & paint palette (8 different colors)

4x 17HS3404 NEMA17 Two Phase Stepper Motor, 12V, 0,4A

• 1x Stepper Motors QMot Stepper Motor, 42mm, 0.49Nm, 1.0A, 51mm length

• 1x Stepper Motors QMot Stepper Motor, 42mm, 0.27Nm, 1.0A, 35mm length

• 1x Servo Motor 426-SER0050

• 2x ACT 17HS4417P1X4 Hybrid Stepper Motor NEMA 17 1.8° 1.7A 2.6V

• 1x 9g servo motor

• 2x NEMA17 GEAR STEPPER MOTOR-07GM NEMA17-07GM 0.44 Nm 1.68 A Wellen-Durchmesser: 8 mm

• 1x Kontinuierliche Rotation DC-Motor Servomotor

Renkforce RF-MIC-510 USB microphone with hard carrying case

Renkforce UM-80 USB microphone wired incl. cable

Renkforce UM-80 USB-Mikrofon Kabelgebunden inkl. Kabel

• 2x Microphone breakout board I2S

• 4x StepDir UART Stepper Motor Driver TMC2209

• 1x Relais Board 5V, Switching 28V DC 10A

• 1x DEBO MEMS MIC Breakout board with I2S MEMS microphones

• 1x Stepper Motor HAT 485-4280

• 1x Servo Motor HAT 485-2327

• 2x ACT DM420 Stepper Motor Driver for NEMA 17, 12 - 36 V

• 2x ACT DM430 Stepper motor driver, 12 - 32 V, 3 A

• 1x 20W ADJUSTABLE DC-DC BUCK CONVER

  Image Added

• FFT → Frequency domain → average frequency

• Time domain → amplitude

• Low-pass filter on amplitude → react to trends in music

• Dynamic reaction to signal history

• Output difference to previous average and scale

  between min/max (updated along the music)

X movement, Y movement, color change

Pitch analysis:

Analog → digital → FFT

Every 7s: calculate RMS of amplitude → normalized value

→ Plots:

• Vertical axis: normalized pitch

• Horizontal axis: time

→ Extracts points from the curve → straight lines

3 constant colors

1. Idea 1: Firework

   • Frequency → musical note → color

   • Amplitude → loudness → stroke length

2. Idea 2: Flower bouquet

   • Coordinates assigned to unique note with color

   • Stroke length based on Octave number

   • Stroke direction randomized in 360°

3. Idea 3: Shapes

Base: circle, radius increases at each incrementally