Re: [CAD_CAM_EDM_DRO] Re: Newbie questions???????

On Sun, 06 Jan 2008 16:14:18 -0500, you wrote:

>
>This may be what you want, but it's a deviation from the RS274NGC spec.
>The Txx command is only supposed to prep the next tool. This is useful
>on machines with large toolchangers you can issue a tool prep code just
>after switching tools, so the carousel will be at the correct slot when
>you finish with the current tool. The M6 is what is supposed to
>actually change tools. That's when the new offsets are supposed to be
>applied (actually, during the first motion after a toolchange). At that
>point, if your machine is configured to ask the operator to change tools
>(rather than using an ATC), you would have to press cycle start or
>whatever to get going again.
>
>M6 is actually supposed to do something :)

I agree, Txxxx should prep the tool, period..

BUT - it seems that Fanuc only use Txxxx in turn, no M6. Unfortunately
Mach took the "dark side" and implemented it.

I was the only "visible" person in opposition, so it got done :(

I've used all the arguments about pre-selectors and gang tooling, but
I'm a lone voice.

The powers that be know what hardware I have, and it doesn't affect me
currently, so they are not interested.

I'm in the catch 22 situation where I can buy a machine for scrap value
that needs that functionality, but I'm not sure whether it's going to be
of use if the facility of pre-selection is not going to be supported :(

Hence, I'd love Will to post his comments in the Mach group where the
powers that be read the posts, rather than here.

We can prevaricate all day here, but it's falling on deaf ears!

Steve Blackmore
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