Machining question

[Bob W.]

I am running a Haas milling machine and at the end of my program I would like to send the table to a specific location (X8.,y0,z4.) relative to the machine's coordinate system, not the work coordinate system. This is not something I want my post to do, but something I would just type into the machine as I am running parts.

 

How would I go about doing this? The standard program end is something like:

 

M5

G91 G28 Z0. M9

M30

 

Any help would be appreciated

 

Thanks,

Bob

[Guest]

Take a look at the home pos and/or the ref pos tabs and see if they do what you are looking to accomplish.

 

HTH

[Bob W.]

Isn't there just a line of code I could type in like:

 

g?? z4. x8. y0. m9

 

What would the G code be?

 

Thanks,

Bob

[Guest]

G53

 

I believe is what you are looking for, I'd be careful with the Z callout though.

[3rdstring]

On a FANUC control I think Johns right G53 to cancel all Fix offsets then just the XY coords you want.

 

On our FATAL(sp? ) you tell it E0 to cancel fix offsets?

[Bob W.]

Just what the doctor ordered, Thanks. The line of code was:

 

G90 G53 z4. x-8. y0. m9

[Thad]

quote:

---

On our FATAL(sp?

) you tell it E0 to cancel fix offsets?

---

Chuck, G53 works too. On the Fadal, G53 is interchangeable with E0, G54 is interchangeable with E1, and so on.

 

Thad

[gcode]

Just set an unused work offset to the postion you want.

G57 for example.

Then hardcode your post

to output

G0 G90 G57 Z0

X0Y0

at the end of evey toolpath.

That will work well as long as no one messes with G57.

[DavidB]

What about G91 to where you want to go?