View Single Post
  #2   Spotlight this post!  
Unread 23-01-2009, 08:29
jbbjjbt jbbjjbt is offline
VRC Coach
AKA: Jon T
VRC #0177 (Twisted Botz)
Team Role: Coach
 
Join Date: Feb 2006
Rookie Year: 2004
Location: Gloucester, VA
Posts: 110
jbbjjbt is an unknown quantity at this point
Re: [FTC]: [FTC]: RobotC Template Problem (causing an FMS issue) and Potential Servo

Quote:
Originally Posted by PackersFan View Post
For some reason, the new joystick driver has some issues. We followed the online tutorial and installed the new one, but the new joystick driver causes connection issues with our NXT. We cannot connect via bluetooth with it at all, and downloading with a USB can be buggy as well. I know the problem is joystick driver related because we used the exact same code (just out of the template) but we used the old joystick driver (which we renamed) and the robot preformed just fine. This means that we cannot run the FMS at all, and we cannot test the new templates as we can only run the FMS when connected via bluetooth.

And then as another issue, we have a robot that struggles to pick up more then 8 pucks in a plexiglass basket using 6 servos. Could there be any issue that might be causing a problem, or is this just the limited power of these servos?

Thank you so much for your help.

I can't help with the RobotC issue, but as far as the servos, we have a bucket with 4 servos to move 8-10 pucks into the 12" high goal. It is very difficult to get 4 servos in sync with each other so 6 would be even harder. When they aren't in sync, they fight each other and won't due the job you're trying to do. We also find the servos dont last very long and have to be replaced often. So check to make sure your servos still work. Another issue is the moment arm for your basket, if you are trying to get the pucks into the high goal, servos probably don't have enough umph unless you use counterweights or some way to get leverage.
__________________
Jon Thompson
Coach
VRC 177 Twisted Botz
Sponsored by FRC 122
NASA Knights
Reply With Quote