Various embodiments provide a method for applying a spacer to a planar substrate, comprising supplying the spacer to be adhered to the planar substrate; defining a first notch, a second notch, and a third notch in the spacer; applying an adhesive to the spacer; translating the spacer in a longitudinal direction; aligning a first end of the spacer with a first corner of the planar substrate; feeding the spacer and the planar substrate between a front carriage and a rear carriage along a longitudinal axis of an unadhered portion of the spacer while pressing the spacer against the planar substrate to adhere a portion of the spacer being pressed by the front carriage to the planar substrate, and rotating, with a six-axis robot, the planar sheet and adhered portion of spacer.