View Single Post
  #12   Spotlight this post!  
Unread 15-08-2011, 22:52
AdamHeard's Avatar
AdamHeard AdamHeard is offline
Lead Mentor
FRC #0973 (Greybots)
Team Role: Mentor
 
Join Date: Oct 2004
Rookie Year: 2004
Location: Atascadero
Posts: 5,525
AdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond repute
Send a message via AIM to AdamHeard
Re: pic: FRC973 offseason teaser #2

Quote:
Originally Posted by JesseK View Post
Stacked together, these would make 2, 3 or 5 gears of each type. So my guess is that these gears will help 973 add 1-2 window motors to their shoulder joint that assists with anti-backdrive of their arm. Yet I dunno how that would affect their PID when doing 'over the shoulder' scoring (pick up from the front, rotate the arm and score at the back).

Their render from earlier this year:
http://www.chiefdelphi.com/media/photos/36953

At first I thought the middle gear would be used for a dog gear coupling where the dog gear only has 2 possible coupling positions (180 degrees from each other), yet that setup would shear the bolts/rivets holding the plate gears together. It's an interesting design for a solid steel gear though.
Good guesses, but our arm this year was so ridiculously overpowered that PID wasn't even needed to hold position, friction did it well enough. We did have PID of course, it just wasn't what actually held the arm up.
Reply With Quote