Abstract: A modification to an apparatus for trimming thermoplastic material surrounding the bordering edge of an article formed in a die or mold from a sheet of pliable thermoplastic material such as glass arranged over the die or mold which is supported by a mold or die carrier, such apparatus including a trimmer having a lower cutting edge and disposed above the die with the center of the trimmer in vertical axial alignment with the center of the die and cooperative with a trimming edge of the die when the trimmer is lowered for trimming of the article formed in the die. A pressurized hydraulic fluid cylinder vertically actuates the trimmer.