Overview

In the complex organic system represented by pneumOS, the element that emulates alien lung function and transmits aesthetic information by reproducing respiratory acts is structured into four main components

• a lung sac
• a linear actuation mechanism that determines its expansion and contraction,
• an electronic system that, by receiving signals through API, regulates the dynamics of movement,
• a housing that encloses the mechanism and the electronic system, integrating and supporting the three main components within the metal base.

A digitally fabricated sculptural work, resembling a bone structure, aesthetically separates the bag from the metal base of the art installation.

The 3D-printed mould for the bag

The breathing bag is developed in silicone from a 3D-printed mould. This cast will also be used by schools participating in the ‘Polmone Scolastico’ (School Lung) programme, to realise a simplified replica of the Pneumos project in their own school, working on a STEM project on art, territory and expressivity.

The cast consists of two components. The aim is to make a bag with the following measurements:

• External bag diameter: 200 mm
• Inner bag diameter: 190 mm
• Bag thickness: 5 mm
• Number of holes: 16 (15 for the ventilation papillae, 1 for the papilla attached to the linear actuator)
• Diameter of ventilation holes: 13 mm
• Diameter of central hole: 11 mm

The 3D-printed mould for papillae and suction cups

The papillae and suction cup casts consist of three parts: the base and a bivalve shell. In addition, there are 3D-printed rods to make the element perforated, allowing air to pass through.

The moulds of these elements can be improved, so the original shapes of a papilla and a suction cup are also included in the design.

The 3D-printed mould for the central papillae

The central papilla consists of a bolt attached to the linear actuator, and passes through the central hole. On the outside, it is covered by a silicone cap, made using a dedicated mould