on the base 11 and a secondary parallel line d u2032 for aligning to mark u00bc inch from the edge of fabrics as will be described in greater detail hereinafter a right angle triangular transparent guide panel 19 is hinged along one side to the perimeter guide angle 16 by a selective hinge configuration 20 a lifting tab 21 is formed integrally with and extends from a free side edge surface 22 adjacent the panel 39 s defined angular edge cutting surface 23 the hinged configuration 20 may be of any continuous piano type or multiple spaced hinged elements so as to assure edge orientation when selectively operated from a first flat base engagement position to an upstanding position as seen in solid and broken lines in fig1 of the drawings it will be seen that the cutting guide edge surface 23 of the hinged triangular guide transparent guide panel 19 defines a u201c true u201d diagonal across a surface s of the support base 11 and is correspondingly in alignment between the hereinbefore described end gap 18 between the respective guide angles 16 and 17 which will allow for a continuous cutting action therealong as will be described in detail hereinafter in use the fabric alignment marking and cutting guide 10 as seen in fig2 and 3 of the drawings in this example a fabric square 24 to be cut is positioned on the support base 11 39 s surface s which is divided into equal portions by a cross gridline pattern 25 the transparent guide panel 19 is raised and the fabric square 24 is placed on the grid line supporting.