Chief Delphi - One Side Drives Faster than the Other.

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Re: One Side Drives Faster than the Other.

sure you can create some crazy algorithm to get both motors output to be almost equal at any given rpm__ because the motor's difference between the motors changes with the rpm__ but that means that the robot will go slower that full capacity.

also the problem you have can be fixed by facing both motors the same direction then run a shaft paralel to one of the motors and have gears and chains reverse the rotation from clockwise to counter-clockwise

it's complicated maybe if i get the time ill take a pic of how we did it to show you; and this way you don't loose any speed

Re: One Side Drives Faster than the Other.

we had a similar problem and a victor was bad....use a multimeter to test the current on the victors in case something is bad

Re: One Side Drives Faster than the Other.

Quote:

Originally Posted by Brandon Holley (Post 576592)

We took them out to mount em up, and I gave each motor shaft a quick twist. The 1st one was perfect, teh 2nd one, was horribly bound up. About half of the rotation was flawless, the other half required a bit of effort to turn. We figured we'd put it in the drive train to see if it would work itself out, but it appears that it may be getting worse. Any comments to this??

Brandon,
What you describe is usually the armature contacting the magnet structure. There are a variety of causes for this. The most common is dropping the motor which puts a small bend in the motor shaft or shifts the magnet structure a little. Check for obvious signs of external damage. Replacement is the only real fix on this. A good check is to power the motor up outside of your gearbox and then let it spin down by itself. If there is any rubbing of the internal structure it will be evident at this time with noise and intermittant braking.

Re: One Side Drives Faster than the Other.

Thanks Al, I'll do that tonight and let you know how it works out.