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-   -   Strafing Mecanum with Gyro (http://www.chiefdelphi.com/forums/showthread.php?t=90448)

frenchie4111 29-01-2011 17:06

Strafing Mecanum with Gyro
 
Our team has installed a Gyro, the gyro is zeroed, and in the exact middle of our bot. We can read the values, and we put the gyro angle directly into the Holonomic Drive gyro input. We have noticed that this helps our robot move forward in a very precise line, but does not help our strafing ability, and it is easier/more precise to self correct instead.

We would like to know if there is a way to make the Gyro improve our strafing capabilities.

Chris is me 29-01-2011 17:13

Re: Strafing Mecanum with Gyro
 
What about your strafing capabilities do you find difficult right now? What problems are you trying to solve?

frenchie4111 29-01-2011 18:08

Re: Strafing Mecanum with Gyro
 
It does not strafe perfectly, it rotates while it is going

jackinabox 29-01-2011 22:27

Re: Strafing Mecanum with Gyro
 
Are you using PWM? Last year we had a meccanum drive on PWM and had the same problem. This year we are using CAN, and our meccanum setup drives PERFECTLY.

Greg McKaskle 30-01-2011 06:35

Re: Strafing Mecanum with Gyro
 
It sounds like you need to post code or math describing your control method. Also, are you using a polar form of robot drive?

Greg McKaskle

frenchie4111 30-01-2011 12:52

Re: Strafing Mecanum with Gyro
 
1 Attachment(s)
Quote:

Originally Posted by jackinabox (Post 1011446)
Are you using PWM? Last year we had a meccanum drive on PWM and had the same problem. This year we are using CAN, and our meccanum setup drives PERFECTLY.

Do you know what your code was like that made it work perfectly with CAN?

And I will post my current code once I get a screen shot.

Steve_Alaniz 01-02-2011 21:35

Re: Strafing Mecanum with Gyro
 
Quote:

Originally Posted by jackinabox (Post 1011446)
Are you using PWM? Last year we had a meccanum drive on PWM and had the same problem. This year we are using CAN, and our meccanum setup drives PERFECTLY.

I must admit that I didn't give this notion much credit but I suppose using a digital setting with CAN vs a timed signal from PWM may actually merit looking at more closely. Do you have an explanation as to why there might be a difference or is it just an observation? Anyone else have input?

Steve


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