I am finding that after using the gripper for about 15-20 minutes it stops letting go of the sports cards (equivalent to playing cards) i am picking up. I remove air flow to the gripper and after about 5-6 seconds the card falls.
when i leave the machine and then return after 20 minutes, and restart it might work again. this is not a software or elecitracl issues, its a mechanical issue with the gripper suction cup itself. it doesn't "bounce back" and drop the card immediately after suction pump is turned off.
I would like to buy a bunch more of these rubber grippers to try.
please advise, thanks jim.