What is a SwellCycle Core?
Swellcycle cores are 3D-printed using plant-based thermoplastic made from renewable sources like corn starch or sugar cane to create a lightweight, high-strength internal structure. Designed for performance and shaped for sustainability, our cores are printed directly from your design file and are ready for glassing—no CNC and finish shaping required.
Precision Fit
Every core matches your shape, millimeter-perfect.
Fast Turnaround
From file to core in days.
Less Mess
No need to cut, shape, or sand.
Sustainable Tech
Made from responsible material, designed for circularity.
How It Works
You create your design. We print your custom core using responsible material and our unique inner lattice structure.You glass it—or let us glass it for you.
Shaper Testimonials
★★★★★The boards feel solid, responsive, and surprisingly close to traditional PU, but with a sustainable edge. As a shaper, it gives me precision, consistency, and freedom to keep creating.
Pol Riera
Spina Surfboards
