At BAU 2025 in Munich, we set out to showcase a groundbreaking advancement in 3D concrete printing: Selective Paste Intrusion (SPI). Paired with computational design tools like Spherene for Rhino/Grasshopper, SPI is redefining what’s possible in concrete architecture – allowing for intricate geometries and optimized structural performance that was previously unattainable.

The exhibition booth at BAU 2025 was designed to be both a demonstration and a research object, testing the real-world applications of SPI. Every component was 3D printed, reinforcing the commitment to fully leveraging additive manufacturing for architectural elements. More than a display, the booth explored how SPI can be applied to load-bearing structures, offering new possibilities for construction with minimal material waste.

Spherene, integrated into the booth’s design via Rhino and Grasshopper, played a key role in optimizing structural and thermal performance. The resulting components were functional and visually striking, showcasing a refined balance between aesthetic expression and engineering efficiency.

Further Reading:

Rhino3Dzine: Revolutionizing 3D Concrete Printing with Selective Paste Intrusion and Spherene.

3Dnatives: Scawo3D Enables Freedom in Architecture With Inkjet Concrete Printing.