View Single Post
  #16   Spotlight this post!  
Unread 03-02-2009, 12:28
SteveGPage's Avatar
SteveGPage SteveGPage is online now
Mentor - Scouting and Strategy
AKA: Steve
FRC #0836 (RoboBees)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2004
Location: Hollywood, MD
Posts: 523
SteveGPage has a reputation beyond reputeSteveGPage has a reputation beyond reputeSteveGPage has a reputation beyond reputeSteveGPage has a reputation beyond reputeSteveGPage has a reputation beyond reputeSteveGPage has a reputation beyond reputeSteveGPage has a reputation beyond reputeSteveGPage has a reputation beyond reputeSteveGPage has a reputation beyond reputeSteveGPage has a reputation beyond reputeSteveGPage has a reputation beyond repute
Re: Shooting Distance

We were orginally looking at a 10 - 12 foot range but noticed two things we when started to test it out. First, after each shot, the motor and wheels would not get back up to speed and we would lose about 4 - 6 inches off each shot, so shots would start to miss after the first 3 or 4 unless we only shot 1 per second. Secondly, the longer shots tended to drift left and right due to the geometry of the orbit balls - even with a nice top spin. We were looking at about 66% - 75% accuracy with that configuration. So we regeared down to a lower rpm and greater torque - so the rpm recovery time was almost instanteous, and we found we didn't have any drifting. So we are looking at the 0 - 5 foot range for shooting effectively. We can shoot 20 balls, with almost 100% accuracy, in less than 6 seconds at those distances.

Glenn - have a great season - too bad we will be at a regional with you guys this year! I wish you all great success!

Steve
__________________
FRC 836, The RoboBees www.robobees.org
growingSTEMS www.growingSTEMS.org
2017: Southwest VA, Northern MD, Chesapeake District Championships, Championships
Reply With Quote