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Unread 07-03-2009, 22:53
Xenozero Xenozero is offline
Xenozero
AKA: The inovator
FRC #1230 (Lehman Lionics)
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Re: Help with weird problem.

well it does help a little, there is actually dipit on the cloth itself (oddly enough to try to gain some friction for the orbit balls) but we did try the static theory out by connecting a copper wire to the closest metal contact to the rollers and the moter speratly and connecting the other end to a ground, the negetive lead of the input voltage.

with the current theorys brought forth, they all have their counter points

- current draw spike
*when the motor was disconected from the belt it was driven fine as long as we wanted, but when conected again to see if the current did spike, the device we used to measure the current draw on the system did not spike above 16 amps, with the occasional 20 amp reading for a split second

-static theory
* the combonation of the metal rods making a vandergraf generator causes the static charge to spike and discharge resulting in a system failure.
this was tested against multiple grounds connected to key points on the system and still the problem accurs

-vibration theory
* the vibration of the robot results in the disruption of the ethernet cord and therefore forces the watchdog to shut the speed controllers down.
- the motor and belt in question does not vibrate more then the other components that do vibrate alot more and can run for as long as we like.

Temperature theory
- the motor did not heat up at all through out the days use

Dead battery theory
- the battery was changed multiple times

if i missed one please help lol. this problem is really stumping alot of people and im glad everyone is helping