We stripped 8 hard drives down the ascertain the most appropriate actuator for our application.
Cutting the Groove
Having seen footage of hard drive actuator arm play music when connected to amplifier convinced us we could invert the process and use the actuator as the cutter head once we mounted an appropriate cutting tip.
Effectively reverse engineering from the digital realm to create an analogue result.
This image tests the theory, signal being fed to a hard drive and played back via a stylus resting on the arm.