View Single Post
  #2   Spotlight this post!  
Unread 10-01-2008, 10:36
Stu Bloom's Avatar
Stu Bloom Stu Bloom is offline
I REALLY want to be Andy Baker
FRC #1018 (RoboDevils)
Team Role: Mentor
 
Join Date: Dec 2002
Rookie Year: 2002
Location: Indianapolis, IN
Posts: 662
Stu Bloom has a reputation beyond reputeStu Bloom has a reputation beyond reputeStu Bloom has a reputation beyond reputeStu Bloom has a reputation beyond reputeStu Bloom has a reputation beyond reputeStu Bloom has a reputation beyond reputeStu Bloom has a reputation beyond reputeStu Bloom has a reputation beyond reputeStu Bloom has a reputation beyond reputeStu Bloom has a reputation beyond reputeStu Bloom has a reputation beyond repute
Send a message via AIM to Stu Bloom Send a message via Yahoo to Stu Bloom
Re: Springs?? (10 lbs. at 22 ft/s)

emphasis added ...
Quote:
Originally Posted by pfreivald View Post
I did the math assuming that you wanted to launch the ball at a 45-degree angle in order to maximize the 'sweet spot' for shooting, and found that the spring requirements are unreasonable. (From the floor to over the overpass was 221 J not including losses due to the game happening in real-life as opposed to a physics classroom -- the spring constants needed were **huge**.)

The other problem is that you cannot transfer the energy fast enough to launch the ball without running awry of the safety requirements.

Patrick
I am curious where you located any specific "safety requirements", and what the defined limits are?
__________________
Stuart Bloom
Mechanical Engineer
Rolls-Royce Corporation
FIRST Team 1018 - Pike HS RoboDevils
My activity for 2012:
  • Boilermaker planning committee
  • Israel Head Ref - DONE (and it was FANTASTIC!)
  • Boilermaker Regional (with 1018) - DONE
  • Midwest Head Ref - DONE
  • WORLD Championships (with 1018) - DONE
  • IRI Head Ref - DONE
  • CAGE Match Head Ref