On Sat, 17 Mar 2012 17:28:05 +0100, you wrote:

>My assumption about Tarjectory planning was based on Anders Wallins  
>message as he mentioned some problem with limited look-ahead,
>I suppose this affects the shape of the calculated path in some cases?

Effectively LinuxCNC only looks ahead one line. 

>From my experience with 2.4.6 it's poor on arc to line or line to arc
moves using a parallel port setup with steppers. It's very jerky
compared to Mach3 with the same settings.

Steve Blackmore
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