PUSH-UPs… 2×8 pixel unit

After the design and build of the prototype PUSH-UPs articulated display panel, I have now built the first of 4 identical modules, each containing 16 controllable rods.

The four modules will form an 8×8 “pixel” animated surface display system to create a dynamically changing topography.

Stimulus for this display unit will be derived from a camera, an arrays of sensors, or purely from software that simulates different surface topologies.

PushUps: Top view of the 2×8 design

The design of the 2×8 unit parallels that of the 2×4 prototype. However, I changed the design of the servo horn and connecting linkage to ensure that the “pixels” fall onto a 33.34mm pitch (2 times the 16.67mm pitch of the LEDs on a 60 led/metre strip) for both rows and columns.

PushUps: side view showing the thinner servo horn and offset connecting linkage

In addition, the underside of the top plate was cut to allow for a simpler installation of the LED strip, that now contains a total of 34 LEDs.

PushUps: showing LED illumination for each “pixel” element

PushUps: all 16 units pictured in mid-articulation of a sine wave

PushUps: closeup of the servos

PushUps: closeup of the nano, 16-channel PWM/servo multiplexer and buck power supply

PushUps: close-up of the underside of the top plate showing installation of LED strip


Getting there!

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