Tetra Manipulators

[greencactus3]

Originally Posted by n0cturnalxb

Or pick the tetra up from the bottom PVCs and hold it tilted at an angle towards the robot. That way, you wouldn't have to get the tetra as high up as the goal, just almost.. and then tilt it away from the robot, lower the tetra however low it must go, and then move away.

right. so if you get a small (Well doesnt have to be small) grabber that will grip one side of the tetra tightly enough so it wont slip or spin, then you can use a 4 bar or anything w/e to lift it vertically .. and then have a bit of or wait a second... since the sides of these tetas are uhhh 60 degrees?or a bit less i think... since its not a pyramid. dont feel like looking up geometry dimensions now.. well anyways,,, if you get a grab on this at one side from a 120?60?(where am i measuring from?) angle,
like
.............o.......
............//....
.......a..//...arm
.......^//
...../....\....
..../.......\.....
.b.--------.c
...tetra

(o is the arm axis)

and then rotate the arm up so itll look like
.......b
.......^.
...../....\....
..../.......\.....
.c.--------.a
...........\\
.............\\
...............\\
.................o

then you will have a 'holding as if it were flat on the ground" even though the
arm has rotated.. makeing full use of the tetrahedral shape... little problem with the vision ones tho im thinkin..