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In 1814 Samuel Marsden arrived in Aotearoa/New Zealand and delivered the nation’s first missionary sermon. Nearly 200 years later, Core Builders Composites placed the finishing touches on Rore Kāhu, in Rangihoua Heritage Park in Northland, Zealand, which exists in his honour and that of other early New Zealanders.

Rore Kāhu - which in Te Reo Māori means ‘soaring hawk’ is a minimalist, alter-like structure constructed of rammed earth.

Its view is the distant Marsden Cross, and the sweeping landscape of the Rangihoua Heritage Park.

Rore Kāhu was designed by Chershire Architects, who realised that the ambitious project required digital manufacture to build successfully and invited Core Builders Composites (CBC) - now SailGP Technologies - to manufacture the 28 triangular shaped roof panels from PET panels and e-glass skins, not one of which is the same.

Core Builders Composites created three infused E-glass/PET sandwich panels, each 5m wide x 15m long, cutting out the 28 panels with its high precision 5-axis CNC machine, and also using the machine to create correct bevels on all edges and to bore holes for bolting flanges in specific locations down to a fraction of a millimeter.

Rore Kāhu’s roof appears to defy gravity, and while reminiscent of a church, contains no structural steel.

Only the CNC machine could precisely create the correct bevels on all edges and specific locations of the holes for the bolting flanges.

While relatively small for a public space, Rore Kāhu is considered a triumph of digital manufacture.

This landmark structure now sits gently on the KeriKeri peninsula and SailGP Technologies is proud to be associated with it, through our founding organisation, Core Builders Composites.