Re: Re: Auto tool changers

>    From: "ballendo" <ballendo@...>

> Alan,
>
> Sounds like you're most of the way already...
>
> Yes, M06 and Txx. Most good programmers will list the "T" word at
> least a few blocks ahead of the M06, so the toolchange turret
> can "get ready"(rotate; talking 'bout mills here) so as to have the
> next tool in position for a quicker tool change when the M06 actually
> initiates the physical change to the new tool.
>
> But you have to be careful. Some controls will switch the offsets
> used WHEN the "T" word is read. Bad, very bad. Same old, same old;
> know your control! (Offsets "should" switch with the "D" and "H"
> words. (Some older controls use different letter addresses for
> diameter and height offset values)  

Ballendo

Now you've got me really confused with this program it before you use it
stuff. It has been my impression over the years that the combination of
look ahead and programmable logic handled these kinds of tool changer
specific problems in most commercial CNC/PLC's. I don't believe that
I've ever seen a program where the M6 Txx command was given before it was
needed. Could you list a sample of controls where this kind of
programming is commonly used?

You are right that as hobby users we need to clarify how a specific
CNC/PLC "reads" the M6, Txx, Dxx, and Hxx commands before we rush into
fitting or retrofitting.

RayH -- U.P. Michigan