Mon, 09/19/2016 – 11:01am 1 Comment by Sheri Kasprzak – Managing Editor – @SheriMKasprzak
PianoArc’s circular and curved keyboards are visually striking, but securely attaching the keyboard units to compatible stands was an early design challenge for the Boston-based design firm.
PennEngineering’s PEM self-clinching fasteners are used to provide stability to these uniquely shaped instruments.
The circular Brock360 and the semi-circular DualWing designs use 36 PEM carbon steel self-clinching nuts. The nuts specified for both applications install permanently in 1/8”-thick machined aluminum panels that compose the keyboard stands. This creates load-bearing threads in thin sheets and provides high pushout and torque-out resistance. Mating screws complete the attachment of units to stands.
PianoArc’s Brock360 is a circular controller keyboard with a six-foot diameter. The DualWing debuted earlier this year and is engineered as a dual 72-note controller keyboard equipped with synth action, a carbon fiber top, integrated light show, and custom mounts for control surface, laptop, and microphone mounts. Sound is generated from MIDI/USB outputs. (…)
via PianoArc’s Circular and Curved Keyboards Make Sweet Music with PEM Fasteners.