Tactile Feature Tool

An embossing head for use in a printing press to produce embossments on a sheet material, the embossing head comprising:

• at least one embossing plate assembly, each embossing plate assembly comprising a raised embossing feature extending vertically upwardly from an upper surface of the embossing plate assembly;
• a mounting block for reversibly coupling with each embossing plate assembly to substantially constrain motion of the embossing plate assembly to a vertical direction, wherein the mounting block comprises a mounting apparatus for rigidly and reversibly mounting the mounting block to the printing press;
• and
• for each embossing plate assembly, an adjustable positioning means coupled to the mounting block and contacting the embossing plate assembly for stopping vertical downward motion of the embossing plate assembly at a selectable lowermost vertical position and for maintaining coupling of the embossing plate assembly with the mounting block, wherein the adjustable positioning means is adjustable to raise or lower the lowermost vertical position to thereby select a corresponding vertical position of an upper surface of the embossing feature relative to the mounting block.