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Unread 18-02-2015, 18:54
MattRain MattRain is offline
AZ FTC AF, FTC #2844 and FTC #8640
FRC #1492 (Team Caution)
Team Role: RoboCoach
 
Join Date: Sep 2012
Rookie Year: 2008
Location: Chandler, Arizona
Posts: 317
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[FTC]: Static issues. Solutions?

I have seen the thread made by Philbot in regards to static, but I wanted to see if any other teams are having this problem.

We have two teams at our school, 2844, and 8640. Each of these robots have been built completely different. If you want to see pictures, click the twitters below....

8640 is currently using a mix of Tetrix and Andymark motors. The Tetrix motors they are currently using are on the drive train, with two tetrix encoders. They have run into a large problem with static shock as they come down the ramp and on to the foam tiles. All of the electronics have been isolated onto a plastic sheet.

The problem though: During autonomous, they have noticed that the encoders on the tetrix motors are getting a small shock to them. Everytime that it shocks, the encoders seem to restart the last step in the autonomous program. This (re-starting of the step) only happens when they can see/hear the shock. They have been watching from the NXT screen on the computer. Has any other team seen this happen. There is no way to isolate the encoders though. They currently replaced the motor mounts for those motors with plastic versions, which has seemed to slow the shock rate down, but are still having the problem.

2844: They do not have as large of a problem. Their robot is fully Andymark motors. From time to time, it will shock, also resulting in a re-start of the last step of the autonomous code. So its not just the tetrix encoders.

I guess in short, has anyone seen a problem with static shock with the ramps, and how are you solving the problem..??(Other than static spray on the tiles.)
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Twitters: Valley X & Trojan Robotics & Team Caution
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