View Single Post
  #1   Spotlight this post!  
Unread 20-11-2001, 10:33
Joe Johnson's Avatar Unsung FIRST Hero
Joe Johnson Joe Johnson is offline
Engineer at Medrobotics
AKA: Dr. Joe
FRC #0088 (TJ2)
Team Role: Engineer
 
Join Date: May 2001
Rookie Year: 1996
Location: Raynham, MA
Posts: 2,648
Joe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond repute
The dyno tests we have on the power sliding door motors we use match the theoretical curve very well in the middle 80% of the curve. The last 10% on either side of the curve are close but quite the linear form that the simple models predict.

As for me, the calculations are good enough to get me in the range I want to be in. Designing to the last decimal place is always dangerous and often disasterous.

As to FIRST robots, there are plenty of other much larger unknowns to deal with than the difference between the simple motor model I use and the actual motor performance.

Joe J.