A system comprising an apparatus; a multi-layer laminate laid-up onto a forming tool (110, 600); and a vacuum bag covering the multi-layer laminate; the apparatus comprising: the forming tool (110; 600) comprising: a main body that holds a first portion of the multi-layer laminate; a platform that holds a second portion of the multi-layer laminate aligned with the first portion; and a biasing device that repositions the second portion with respect to the first portion during forming of the multi-layer laminate, causing shear stresses between layers (142, 144) of the multi-layer laminate, wherein: the platform comprises: an upper surface contacting the multi-layer laminate; and a hinge connected to the main body, and the biasing device is configured to reposition the second portion by rotating the platform about the hinge, the biasing device comprising a spring, and wherein the platform is configured to hold the second portion of the multi-layer laminate aligned with the first portion before the vacuum bag that covers the multi-layer laminate applies pressure to the forming tool during forming and the biasing device is configured to reposition the platform in response to the pressure, causing the platform to alter a shape of the multi-layer laminate during forming. the forming tool (110; 600) comprising: a main body that holds a first portion of the multi-layer laminate; a platform that holds a second portion of the multi-layer laminate aligned with the first portion; and a biasing device that repositions the second portion with respect to the first portion during forming of the multi-layer laminate, causing shear stresses between layers (142, 144) of the multi-layer laminate, wherein: a main body that holds a first portion of the multi-layer laminate; a platform that holds a second portion of the multi-layer laminate aligned with the first portion; and a biasing device that repositions the second portion with respect to the first portion during forming of the multi-layer laminate, causing shear stresses between layers (142, 144) of the multi-layer laminate, wherein: the platform comprises: an upper surface contacting the multi-layer laminate; and a hinge connected to the main body, and the biasing device is configured to reposition the second portion by rotating the platform about the hinge, the biasing device comprising a spring, and wherein the platform is configured to hold the second portion of the multi-layer laminate aligned with the first portion before the vacuum bag that covers the multi-layer laminate applies pressure to the forming tool during forming and the biasing device is configured to reposition the platform in response to the pressure, causing the platform to alter a shape of the multi-layer laminate during forming. an upper surface contacting the multi-layer laminate; and a hinge connected to the main body, and the biasing device is configured to reposition the second portion by rotating the platform about the hinge, the biasing device comprising a spring, and wherein the platform is configured to hold the second portion of the multi-layer laminate aligned with the first portion before the vacuum bag that covers the multi-layer laminate applies pressure to the forming tool during forming and the biasing device is configured to reposition the platform in response to the pressure, causing the platform to alter a shape of the multi-layer laminate during forming.