Gyro Drive Straight

[roberthashley]

We are using Tank Drive.

[Ether]

Originally Posted by roberthashley

We are using Tank Drive.

Please be more specific.

"Tank Drive" means different things to different people in different contexts.

[1]What kind of drivetrain do you have¹, and

[2]what software² are you using to control it?


¹details please: number and type of wheels, number of gearboxes and gear ratio, chains/belts/direct, etc etc. The more detail, the better.

²e.g. what vi are you using, and how is your driver interface (joystick) mapped to that vi's inputs e.g. arcade, tank, other?

[roberthashley]

six wheel
two mini cims preside
belt
two shifting gearboxes
i don't know the gear ratio
Xbox Controller

Dose that help

[Ether]

Originally Posted by roberthashley

six wheel
two mini cims preside
belt
two shifting gearboxes
i don't know the gear ratio
Xbox Controller

Dose that help

Somewhat.

What does "two mini cims preside" mean?

Also can you get answers for the questions highlighted in red below:

Originally Posted by Ether

[1]What kind of drivetrain do you have¹, and

[2]what software² are you using to control it?


¹details please: number and type of wheels, number of gearboxes and gear ratio, chains/belts/direct, etc etc. The more detail, the better.

²e.g. what vi are you using, and how is your driver interface (joystick) mapped to that vi's inputs e.g. arcade, tank, other?

[roberthashley]

two cims on each side.

[Alan Anderson]

Driving a six-wheel skid-steer drivebase using Tank Drive (left and right joysticks) is not easy if the robot doesn't want to go straight, even with computer control based on a gyro sensor. It is very easy to make it go straight using Tank Drive if the robot is properly constructed.

But if you really want to try to compensate for a difficult-to-control robot, the idea is simple. Compute the difference between desired and measured heading, scale it to something that will yield a value between -1 and 1, then add it to the joystick input for one side and subtract it from the joystick input for the other side.