Quote:
Originally Posted by SuperBK
I don't see why it wouldn't be legal. It doesn't have to lift that high, only enough to get the wheels off the gound, so it won't put that much side stress on the tower.
Brian
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Inaccurate, sir. You have to lift your wheels above the platform to be ELEVATED.
As to why do this.... Well this way, you don't have to reach 7 ft in the air to lift. And you can just as easily lift from under the ball return.
The towers shouldn't flip unless you're doing something very wrong. The base plate is an 80" piece of aluminum plate, so it'd extend about 18" out from the tower on each side. A single robot should have difficulty tipping the tower. Front to back, anyways.
As far a strength.... A 150lb robot with an 18" CoG will put a bending load on a tube of about 50% yield, if you only grab one pole. I don't have a convenient calculator at hand for point load crushing force on tubes, but you can reduce the crushing force significantly by simply spreading your "hands" out father.
Finally... It's dirt simple to make a grasping mechanism for this that releases without power. The dude in the video could have managed just as well with a hook for a left hand and a bunch of friction tape.