[3] As a result, an array of self-sealing suction cups can grasp and pick up a wide range of object sizes and shapes.
This comes in contrast to conventional suction cups that are typically designed for one specific object size and geometry.
[1] In addition, suction cups of various sizes have been manufactured, ranging from the palm of a hand to the point of a fingertip.
[1][2] If the cup makes contact with an object, a hinge action raises the plug away from the suction tube.
These items consisted of the following: TV remote, pill bottle, glue stick, eyeglasses, fork, disposable bottle, toothpaste, coffee mug, bowl, plate, book, cell phone, bar of soap, paper money, mail, keys, show, table knife, medicine box, credit card, coin, pillow, hairbrush, non-disposable bottle, wallet, magazine, soda can, newspaper, scissors, wrist watch, purse, lighter, compact disc, telephone receiver, full wine bottle, full wine glass, light bulb, lock, padded volleyball, wooden block.
[7] Researchers from ARL designed and developed a three-finger hand actuator system using a 3D printer in order for the robot to properly utilize the self-sealing suction cups.
[7] The three-finger hand has been used by aerial systems and has demonstrated considerable success in grasping objects on the ground while maintaining flight.
According to ARL researchers, the self-sealing suction cups may exhibit higher rates of success underwater due to the extra pressure from the sea depths surrounding and pressing against the object and grasper.
[5] However, they noted that an underwater environment would require different manufacturing materials that would allow the suction cups to perform well in salt water, such as a thermal plastic.