Haptic Actuator as Sound Speaker

Haptic Actuator as Sound Speaker

Here we use a printed coil actuator to create a speaker from a plastic cup. We have also built these into headphones. Sound quality is very acceptable for a first prototype. (more…)

Haptic Force Feedback using a Wireless Solenoid

Haptic Force Feedback using a Wireless Solenoid

This video illustrates how a thin film force sensitive resistor can provide haptic feedback through the use of printed coils and a fixed magnet. 1.5 mm thin printed coils are energized when force in the resistor exceeds a given threshold. That causes the resistor and the acrylic to experience a hard click. (more…)

Solenoid Coil Speaker Plate mounted on a guitar

Solenoid Coil Speaker Plate mounted on a guitar

This video shows five printed coils mounted on the tone bridge of a guitar. The audio is actually being played through the speaker coils and magnets are driving the acoustics of the guitar. Essentially this is a self-playing guitar. (more…)