View Single Post
  #98   Spotlight this post!  
Unread 20-01-2011, 17:31
billbo911's Avatar
billbo911 billbo911 is offline
I prefer you give a perfect effort.
AKA: That's "Mr. Bill"
FRC #2073 (EagleForce)
Team Role: Mentor
 
Join Date: Mar 2005
Rookie Year: 2005
Location: Elk Grove, Ca.
Posts: 2,384
billbo911 has a reputation beyond reputebillbo911 has a reputation beyond reputebillbo911 has a reputation beyond reputebillbo911 has a reputation beyond reputebillbo911 has a reputation beyond reputebillbo911 has a reputation beyond reputebillbo911 has a reputation beyond reputebillbo911 has a reputation beyond reputebillbo911 has a reputation beyond reputebillbo911 has a reputation beyond reputebillbo911 has a reputation beyond repute
Re: Minibot climb rate

Quote:
Originally Posted by JB987 View Post
Getting similar times on direct drive prototypes and 2-1 gear ratio prototypes... we are assuming similar times is due to gearing inefficiency and the added weight of all the extra gears, spacers, etc... The question is, how much better can we expect if we lighten up the Tetrix gears and improve gear alignment???
Strictly based on calculations and the specifications available, the difference in times when directly driven and when a 1:2 gearing increase is added is only 1 second.

The calculation with the gearing did not include the additional weight of the extra hardware and gears requires to add the gears.
When I calculated with the weight added, I only see a difference of .8 seconds.

Therefore, I am not surprised in the least that your times are very close. Add in a factor of human error if manually timing, and you could easily have a dead heat.

So, would lightening the hardware help? You bet!
__________________
CalGames 2009 Autonomous Champion Award winner
Sacramento 2010 Creativity in Design winner, Sacramento 2010 Quarter finalist
2011 Sacramento Finalist, 2011 Madtown Engineering Inspiration Award.
2012 Sacramento Semi-Finals, 2012 Sacramento Innovation in Control Award, 2012 SVR Judges Award.
2012 CalGames Autonomous Challenge Award winner ($$$).
2014 2X Rockwell Automation: Innovation in Control Award (CVR and SAC). Curie Division Gracious Professionalism Award.
2014 Capital City Classic Winner AND Runner Up. Madtown Throwdown: Runner up.
2015 Innovation in Control Award, Sacramento.
2016 Chezy Champs Finalist, 2016 MTTD Finalist

Last edited by billbo911 : 20-01-2011 at 17:38.