This is a good explaination of the trajectory control.
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?TrajectoryControl

sam
----- Original Message ----- 
From: "FraT" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Sunday, January 20, 2008 12:34 PM
Subject: [Emc-users] Look-ahead. Is present in EMC ??


> Hallo everybody,
> I would like to know if EMC manage the look-ahead to optimize the 
> trajectory
> and if there is a customizing function.
> I know the acceleration parameter affect the max velocity reached in non
> linear path, but I would like understand if and how the look-ahead can
> improve the performance (velocity, accuracy and smoothness) together at
> accel setting .
>
> Thank you
>
> Francesco Tommasini
>
> Vinci (Florence)
> Italy
>
>
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