Thank's for interest

Thanks. We tried many sequences for this robot. This is the only one that worked properly. Keep in mind that we have a limited number of cylinders. I think we used all of them for this robot and the sequence you described would have required even more of them. For the legs to come down faster, we would have needed an even higher pressure but the circuit wouldn't have handled that.

Thanks :)

Thanks ! There is a suction cup under each leg (the only non lego parts used).

I don't know precisely but if you take all the pieces into account, I think it's somewhere between 1000 and 2000 pieces. I think it took one month to build it and one more to figure out the sequence of actions that would allow it to climb without falling. We bought most of our pieces in bulk on ebay so maybe 50€ for this robot (around $60)

@@robolegoenthusiast did you already have most of the pieces? Just. 10 of the Pistons would probably be 50 dollars

@@robolegoenthusiast now that i think about it, 8 years ago these were more common

i think that it uses pneumatic force to pull off the suction cups

Colby Rooyakkers it just lets the vacuum open to atmosphere.

The Lego pneumatic switches have 3 ports. The center one is connected to the suction cup, the top one is connected to the vacuum pump and the bottom one is left free ("connected to the atmosphere"). When we switch up, the suction cup is connected to the pump and when we switch down it is connected to the free port so it goes back to atmospheric pressure.

The surface of a suction cup is roughly 10cm² so with a perfect vacuum it could have held about 40kg. But since the vacuum circuit was very leaky, it was barely enough to hold 2.6kg.

@@robolegoenthusiast I see, very interesting Thank you for the response btw!

Thanks :) Only high pressure Technic. Actually we don't even own Mindstorms parts. No, we are from France.

Mateusz B w serwisie eBay

walls can be sloped.

Jason Noble you get what I mean smartass

I do.

okai c: