IsoPrototyping is a research initiative, undertaken at the Institute fur experimentelle architektur.hochbau, within the context of the Vertiefung Hochbau and Sonderkapitel des Hochbaus courses, which specialize on building construction. Through the case study of an iso-surface spatial configuration, this research targets the exploration of innovative digital prototyping methodologies, that would allow rapid and cost-efficient fabrication, capable of manufacturing any given double curved surface. The ABB industrial robots of REX-Lab programmed in combination with custom designed, recalibrated dry-mold, surface-producing apparatus, formed the framework for a proficient, yet flexible, process describing and fabricating implicit non-linear systems.