Re: [CAD_CAM_EDM_DRO] Re: G53-57 was Re: Need Zero Help!!

At 05:29 PM 9/12/02 -0700, you wrote:

>so are they just saving AXYZ offsets (and tool comps?), which are then
>added to the machine coordinates? Or is there more to it then that?

That's how my software does it. I use an array of tool numbers and offset
values, with tn #0 to hold comparison values; when in the machine system
world, these are 0,0,0. When a tn is in effect, its offsets are compared to
these and to actual position and the result displayed as tool-tip coords.
When a fixture offset is used, the 0,0,0 values are overwritten with the
offset values, and tool offsets compared to them and actual position, so
they are then tool-tip values relative to fixture. Giving it tn 0 resets to
system coords, by killing the comparison operation and displaying actual
tool position, w/r to machine or fixture depending on if fixture # is
called. Fixture offsets are recorded by touching off on fixture ref point
and giving it a number exactly the same way as is any tool; if tn is
between 54 and 59, those offsets are stored in comparison line. If tn is
53, comparison line is reset to zero. If tn is smaller, the offsets are
stored in the correctly-numbered line in array. All very simple and neat.

Regards, Hoyt McKagen


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