Mechanics and Construction > Mechanics and Construction

TAURUS2

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gamefreak:
see there it is, i thought you had continous rotation servos, all you have listed are standard servos.


so for the vertical axis do you have 180 degree rotation servos?

Admin:
haha ok i see the confusion.

for the rotating wheels I use modified servos for continuous rotation. but for the wheel angles, I use non-modified 180 degree servos.

gamefreak:
alright.

Now heres a question, why did you use a rocker design? it doesnt seem to have any usefulness to it.

Admin:
three wheels are guaranteed to always be on a plane, but four wheels are not (its basic highschool geometry)

the rocker design makes sure all four wheels always remains on the ground even if the terrain is bumpy.

this is a problem with all vehicles with more than 3 wheels, such as cars (the car suspension is required to keep all four wheels on the ground)

my four wheel omni wheel robot (http://www.societyofrobots.com/robot_omni_wheel.shtml) also has a similar problem, and so i used a very thin aluminum base to act as a flexible suspension - if i didnt, only 3 wheels would ever contact the ground!

the rocker also gives a climbing ability to go over small obstacles.

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