Geared Paper Punch Geared Paper Punch from Grant Riley Geared Paper Punch Improving the user experience of a decorative paper punch. View Website The final product A typical user group in this product category Existing punches are often used with heavy card, requiring high operation forces from the user Paper jams are frequent with this design, relying solely on a spring to release itself from the paper Early sketch exploration of possible mechanisms Engineering test rig, built to evaluate different gear diameters Testing the engineering prototype with heavy card - success! Style exploration sketches The finished product; zinc die cast chassis, with an injection moulded enclosure Both variants of the final product, standalone and 'border system' New gears in action! Top cover and arm removed to show mechanical details Four separate zinc die castings Out in China for tooling trials The first castings, hot out of the mould tool First production run, chassis parts stacking up After casting, excess flash is removed accurately through a succession of grinding operations Final hand assembly, where injection moulded parts meet the die castings and other steel components The China engineering team! The punches are available in a range of different shapes, indicated by the print detail on top Final packaging and branding gLike Geared Paper Punch Improving the user experience of a decorative paper punch. View Website Product Design Industrial Design Engineering Share R 7 n Grant Riley Founder of Think Refine Salisbury, United Kingdom Follow Contact