RecordPlayer

DIY vinyl record player

Tasks

Mechanism

• Design mechanism for rotating the vinyl record
• Design mechanism for lifting needle arm
• Design mechanism for rotating the needle arm

Other

• assembly, how will it look?

Parts

• Stepper (lab)
• TMC2209 stepper driver (lab)
• Elastic belt (round or flat)
• Needle - Marek
• Bearing (lab)
• Tonearm (3d Print)
• Counterweight
• Servo for lifting (lab)
• Sensors - speed, angle (lab)
• Buttons (lab)
• Arduino (lab)
• Power supply (lab)
• Amplifier
• Speakers
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Speed detection

We check the platter speed with a hall sensor. A small magnet is glued under the platter, and the sensor sits on the plinth below it. Every time the magnet passes, the sensor sends one pulse, so one pulse means one revolution. We measure the time between pulses to get the speed: 1.8 seconds per revolution at 33⅓ RPM, 1.33 seconds at 45 RPM.

Drive and Platter

Lifting mechanism

Electronics + sensors