Problems turning

[Tom Bottiglieri]

Originally Posted by Cody Carey

Is it just that having the omnis on opposite corners woud decrease the force required to turn the robot, but not as much as the omnis on front of back would do? A little help would be greatly appreciated.

Yes.

While the second scenario you illustrated will get you closer to a "zero friction" turn, it also changes your turning radius from dead center in the robot to inside of the axis between your back two wheels.

Putting the omni's in opposite corners still gives you the problem of turning scrub, but it will significantly reduce the problem as half of your total weight is being distrbuted along wheels which experience little to no axial frictional force. For most situations, this should be enough to kill the bouncing robot problem. This also allows you to keep your 0 degree turn radius, and keep a solid wheel on the ground on each side of the bot at all times.

So really, its all up to driver experience and preference. I have been told that drivers who like to use one stick drive will be much better on a "power slide" bot (omnis on same side) and drivers who prefer two stick will be much better with a 0 degree turn radius.

[Bochek]

well today we ordered 3 andy mark 6" omni wheels,

the reson for 3 was incase one breaks.

we will be replacing the 2 rear wheels with the onmi wheels.

does anyone know the difference in weight between the ifi aluminum sprokets and the steel KOP wheels?

- Bochek

[Arefin Bari]

Originally Posted by Bochek

well today we ordered 3 andy mark 6" omni wheels,

the reson for 3 was incase one breaks.

we will be replacing the 2 rear wheels with the onmi wheels.

does anyone know the difference in weight between the ifi aluminum sprokets and the steel KOP wheels?

- Bochek

The KOP wheels weighs .8 lbs. I believe you were trying to ask about the sprocket that was provided in the kit. If you are wondering if it would help you lose weight when you switch those steel sprockets to aluminum ones, yes you are on the right track.

Also, you are already going to lose .6 lbs by planning on swtiching those kop wheels to AM omni wheels. Those AM omni wheels weigh 5 pounds.

If you need help figuring out how to lose more weight and if you have detailed/close up pictures of the robot, feel free to contact me. I will be more than happy to help you guys and give some suggestions.