|
Re: Motors not running full speed?
Quote:
Originally Posted by team3511
The speed difference is noticeable. Last year we could spin the tires in place if we really wanted, now it's hardly moving fast enough to keep up with someone walking.
We're using the CIM motors and toughboxes from andymark. Not sure of the gear ratios.
Will do more testing on the Jags' outputs tomorrow.
|
Assuming everything other than the ToughBox is from the KOP:
Let's start with some basic math. Last year's KOP transmission used a 4.66:1 ratio. It drove 8" wheels through a 2.17:1 chain sprocket reduction. So the overall reduction was 10.1:1 to 8" wheels. So for every revolution the motor makes, the wheel turns 2.49".
An AndyMark ToughBox has 12.75:1 reduction. Add to that the 2.17:1 chain sprocket reduction and the overall drive train reduction would be 27.66:1 driving 6" wheels. So for every motor revolution you get .68 inches of travel.
Yep, way slower. But, you might be able to climb a wall with that drive train!
__________________
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 : 25-01-2012 at 15:54.
|