The BAM Weber Beamix 3D printer uses 3D geometric designs to make elements that can be combined into structures such as bridges, retaining walls, outlet details, street furniture and even skate ramps.
The chosen design is printed using a concrete mortar mix, which is driven through a printing nozzle from a concrete pump that is affixed to a robotic arm by a hose. The arm delivers layer upon layer of mortar approximately 5mm thick to build up the 3D element. Between each layer we can include a fine metal wire to increase durability and prevent cracking.
The printer uses a unique mortar mix, which remains fluid until it stops moving. Once laid out it solidifies until the subsequent layer introduces energy and bonds both layers as a fluid. Each layer must be laid within 10 min of each other. This means it is as strong as normal cast in place monolithic elements and has a similar performance without delamination.