Re: [CAD_CAM_EDM_DRO] PID primer, was Dedicated mb for PID

----- Original Message -----
From: Jon Elson <elson@...>

> I'm not sure the LM628 and LM629 are very useful. I looked into them
quite
> deeply at one time. I also talked to the applications engineers at
National
> about keeping multiple axes synchronized. My worry was about circular
> interpolation, which is not really supported in the chip.

They don't appear to have been designed with coordinated motion in mind. I
was more impressed by the explanation of how they worked.

Doug