Bending Piezo Actuator

I’ve been playing around with these Piezo actuators which come from pantpiezo (model number QDTE52-7.0-0.77-1). Bendable Piezo actuators offer deflection in the millimeter range at low force. The ones I have appear to be bimorphic so you need to apply an opposite voltage to each side. The video below is with a 100v supply, current …

Low cost STM projects – A review

I’ve been reviewing some student/hacker attempts at building low cost STMs. The major challenge in an STM project appears to be the coarse/fine grained approach mechanism, and there are a few options. this review is also pretty useful. Unimorph disc projects These projects use a standard Piezo buzzer cut into 4 quadrants. The tip is …