The Resources

Plastic[PET] bottle

Cut the Plastic [PET] bottle

After Cut

Tape the edge of the bottle with insulating tape

Double-sided adhesive tape

Install Double-sided adhesive tape to inner side of bottle

Insert the baloon into the plastic bottle[Before use, fill the balloon with air a few times so that it stretches.]

Turn over the baloon

Fill the balloon with the ground coffee.

Cut the Cotton swab[plastic tube shaft type]

Insert the cotton swab into the plastic syringe [The swab is function as a filter to let the air pass but not the ground coffee]

Insert the plastic syringe into the plastic bottle

Turn over the baloon to the plastic syringe

Tape the bottle and the syringe together using the insulating tape

Scooch the balloon

Double-sided adhesive tape

completed!!

Complex shape object[for example "clothes pin"]

Press the universal gripper to the object[the balloon transforms(deformation)]

Vacuum the air [pull the plunger]->"Jamming Transition!!"

You can grip the object!!