Hi,
On Samstag, 11. April 2020, 04:54:41 CEST Robert Ellenberg wrote:
> Furthermore, you could eliminate
> the M6 (since "changing" a tool doesn't necessarily imply a physical tool
> change). For the slitting saw example, your code would look like this (T11
> = saw bottom, T12 = saw top).
Sorry, but this is a very bad proposal.
The T-word is NOT the tool change. Its the tool definition time/place and M6 is
the point of tool change.
At work we code the T-word right after M6, where the spindle speed,
coordinate-system to use and basic coordinates for the start are defined, like
this:
G0 G90 G54 X# Y# S# M3 T#
G43 H# Z# M8
This way the atc has time to move to the new location, without the gcode-job
having to wait (and the atc on my machine is pretty slow).
So when the next M6 happens, the T-word has been seen long before, the atc has
moved and the toolchange is just a matter of interchange the tool from atc
with the tool from spindle.
And yes, after abort, the T-word has been lost. To restart you have to do a
tool-change with mdi
If I remember well, lathe uses T-words and M6 in the same manner. Only a
revolver can't move before M6 as the tool is used in place. A lathe with a
milling head works different. Here the atc acts on the T-word and M6 will
change the tool only.
So I believe, that every cnc-controller has a tool-definition command and a
tool-change command and every cnc-worker will be used to that hobbit.
So I consider it a bad change, remove M6
Reinhard
_______________________________________________
Emc-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-developers
