View Single Post
  #6   Spotlight this post!  
Unread 21-09-2011, 18:21
Jacob Plicque Jacob Plicque is offline
Registered User
FRC #0086 (Team Resistance)
Team Role: Mentor
 
Join Date: Apr 2006
Rookie Year: 2001
Location: Jacksonville, Fl
Posts: 46
Jacob Plicque is an unknown quantity at this point
Smile Re: Current Draw vs. Stall current

Depending on tire slippage, friction, motor loading, etc expect ~5:1 gear ratio for 4" wheels at 15FPS.
5,300 RPM x 80% / [15FPS x 60sec/min / (3.14 x 4"Dia/12)]
Check your calculations. Perhaps you are reading 30Amps per motor for a total of 120.