Why does the Mecanum trolley go off track?

Why does the Mecanum trolley go off track?
Why does the Mecanum trolley go off track?
Why does the Mecanum trolley go off track?

| Why does the Mecanum trolley go off track?

DESCRIPTION:
The reason about the Mecanum trolley go off track.
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CREATED:
Dec 16, 2019
Why does the Mecanum trolley go off track?
First find the reason from the mechanical part:
Part 1: After the Mecanum Wheel is assembled, whether the Mecanum wheel is perpendicular to the ground.
The second part: whether the forces of the four mecanum wheels are consistent.
Part III: Inspect the small rubber wheels on each Mecanum wheel for damage.
The above are the problems I encountered when making a Mecanum wheel robot. If it is the first case, it can be solved by making a wheel seat or other methods, so that the Mecanum wheel is vertical to the ground. If it is the second case We have encountered this situation before, using a suspension structure, and then placing four wheat wheels on four electronic scales, adjusting the suspension stiffness so that the pressure of the four wheels is basically maintained at a similar pressure, the third type Basically, just change the small rubber wheel.
Secondly, from the aspect of electric control, it is mainly whether the four motors form closed-loop control. Generally, if the mechanical aspects are not serious, the four motors of the closed-loop control should make the car run straight!

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