Open source video wall

Objective: Design and manufacture of a video wall using 4 reused LCD monitors.

Purpose: Pilot for the Systems Information Division (DSI) now integrated in the Digital Global Unit (DGU).

Process: 3D CAD parametric design, rapid prototyping/digital manufacturing using additive/subtractive manufacturing techniques and Open Source Raspberry Pi computer programming.

Development: 3D CAD modeling in Solidworks and Rhinoceros; 3D printing of boxes and ornaments; CNC machining and painting of Valchromat MDF for the support structure of the four 22-inch LCD monitors; programming of 4 Raspberry Pi computers as an accessory to each of the 4 screens.

DSI contacted FabLab EDP interested in designing a low-cost Video Wall by reusing old LCD monitors. FabLab EDP analyzed several solutions and proposed an Open Source solution - the Pi Wall - based on Raspberry Pi microcomputers. Four 22-inch LCD monitors were used by DSI and four Raspberry Pi(s) were installed to process their corresponding video segments.

The mounting and support structure of the monitors was designed in 3D CAD and machined in Valchromat material in the CNC router. The system was shown during a visit to DSI by the EDP’s CEO, EDP’s General Supervisor Board chairman and DSI manager.