We acknowledge that a shift in materials and aligned fabrication methods becomes necessary and increasingly more urgent. Aligned to this shift, non-standard materials require adaptation of digital technologies, their properties and behavior, embracing the material´s heterogeneity and imprecision. For this application, a bespoke 3D Printer is developed which employs multi-material dry particle deposition. It uses ungraded beach sand as scaffolding, which guides the growth of a mycelium bound composite, consisting of inoculated beech wood particles. The multi-material dry particle deposition aims at limiting contamination before and during fabrication, and overcoming geometrical limitations while keeping all materials fully reusable without complex processing. The project investigates its performance, feasibility and resource availability looking towards an application for fabricated mycelium bound composites at full architectural scale and its future potential.