Auxetic metamaterials, characterized by a negative Poisson’s ratio, exhibit distinctive deformation mechanisms that make them attractive for applications requiring enhanced energy absorption and stiffness control. In this work, a quasi-static compression test is performed on a 3D-printed coupon based on the General Auxetic Metamaterial (GAM) cell to experimentally characterize its global response and dominant deformation mechanisms. The experimental results are used to inform and support the cal