bars previously used to greatly strengthens the mechanism and avoid serious damage when a tool is severely hung up a die mounted embodiment of a press mounted cam 184 according to the present invention is shown in fig2 25 the die mounted cam 184 has the driver 186 mounted on an upper press platen or die part not shown above a slide 188 mounted to an adapter 190 mounted to a lower platen or die part not shown a locator guide key 192 is centrally affixed to the driver 186 of cam surfaces 194 aligned with a channel 196 defined in an angled cam plate 198 forming a part of slide 188 the slide 188 is movably mounted on the adapter 190 guided by a centrally located t block 200 fig2 affixed to the bottom of the slide 188 a t shaped channel 202 formed in the adapter 190 guides lateral movement of the slide 188 on the adapter 190 on surfaces 191 193 a return spring 204 received in a cavity 206 engages an opposing plate 208 of the adapter 190 to be compressed as the slide 188 is cammed laterally by the driver 186 the locator guide key 192 has a pair of t heads 210 a 210 b creating localized t shapes on the key 192 a slot 212 interrupts the wings 214 of the channel at a point aligned with one of the t heads 210 a 210 b with the slide 188 in a retracted start position as seen in fig2 as the driver 186 descends the lead t head 210 a passes through the slot 212 to enter the channel 196 the main body of the.