FBR General Discussion, page-5266

ICON's pumper merely points a nozzle and has a bunch of wheels. Still takes forever to pile threads of wet concrete, still needs to haul water where they can't get water to mix their mortar. Still needs a crane as they don't have a truck mounted system. FBR lodged their patent for DST two years before ICON did. Fastbrick Americas is based in the US. ICON has no customers, only a US government grant to build on the moon where there is no water, so good luck with that. Also ICON can't set a lentil block on top of a wall, and nobody wants to hang a painting on a curved wall