Re: [CAD_CAM_EDM_DRO] Announcement: Mach3 is now closed loop!

On 26 Jul 2005, at 13:24, Thom Carr wrote:

> At some point, it would be time to use new defining terms for both
> "Cosed Loop" systems. Something like Closed loop/ correct and
> Closed loop/ detect.

Closed loop is a well defined term in control systems engineering. I
would say the new Mach3 feedback feature is open loop with error
detection. It's not closed loop in the conventional sense that it's
able to modulate the power supplied to the motor based on how far
it's lagging behind (or ahead of) the expected position, but at least
it is able to notice and stop the system (hopefully before trashing
the workpiece) if the steppers lose steps.

--
------------ Alex Holden - http://www.alexholden.net/ ------------
If it doesn't work, you're not hitting it with a big enough hammer