View Single Post
  #12   Spotlight this post!  
Unread 01-09-2011, 11:14
Ether's Avatar
Ether Ether is offline
systems engineer (retired)
no team
 
Join Date: Nov 2009
Rookie Year: 1969
Location: US
Posts: 8,070
Ether has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond repute
Re: Linear motion setup

Quote:
Originally Posted by 1075guy View Post
The goal is to be able to stop and change direction at any arbitrary point in the travel.
Will your controller be told ahead of time what the arbitrary point is, so that it can plan for that and start to slow down as it approaches? Does the 0.1" precision (accuracy?) apply to this arbitrary point?

Or will the controller need to respond to a "change now!" command given at an arbitrary point in time? In which case, how much overshoot is acceptable?

You can provide a lot more detail without revealing the specific application. The more detail you provide, the more likely you will get useful help.