Grippers

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Mechanisms of Evolution

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Evolutionism by C. Darwin

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FRUITS

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Foods

由Elena Patey

Wich type of grippers are best suited for picking up convex soft fruits?

Adhesion

Gecko adhesion

fricitonal adhesive

easy to remove

strong adhesion

adhesive nanostructures

Suction

objects must be light and have an even surface

slow movements

objects must be non air permeable

deformation of fruits

solid - liquid jaws

Adapts to surface

Fragile Objects

Higher weight

Fast movements

Solid jaws

slow gripping

Faster movements

doesn't adapt to shape of object

Soft jaws

Tendon driven

easy adaptation to specific object

imitation of human fingers

Contact driven deformation

solid grip

high stress on object

fluîdic elastomer

Fragile objects

adapts to shape of object

Slower movements

leightweight