Geranium foam rubber vacuum suction cup


Finally I managed to buy an industrial foam rubber vacuum suction cup made of material called Geranium. I bought only rubber part and 3D-printed cup myself. Here is a result:

Geranium foam rubber vacuum suction cup

Rubber is very soft and it is supposed to allow grabbing of not completely flat surfaces. My ultimate goal was to allow the robot to climb on a brick wall. Unfortunately this rubber seems to leak quite a lot of air so I think it is optimized for industrial vacuum pumps with high air flow capabilities and might be not usable with small mobile pump.

I will go back to experimenting with neoprene rubber foam because it is cheap, readily available and did show promising results. I just need to find a better way to cut it. Hot wire seems to be not an option according to this article.

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