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Posted by Half-nutz on March 10, 2008, 8:53 pm
Please log in for more thread options
I've used G17,18,19 on several controls... They all act exactly like I
expect, and all exactly the same....
Until I get to this Robodrill/Fanuc 31iA5.
Anyway, I always used G17,18,19 to specify the plane for the circular
interpolation. Just like the books describe.
This has worked exactly as I expected on Bendix/Autocon controls,
Bostomatic, Acramatic 2100, Siemens, etc. Even the examples on line,
and in the Smid books..
I specify G19 if I need to interpolate an arc in the YZ plane, and
none of my coordinates are affected. All the G00, G01, G02, G03 moves
specify the points just like I see them in my work coordinates, and if
I need to make an arc in any plane, I set the G17,18,19 as needed.
I have never seen the G19 change my work cordinates on any other
controller before.
On the Robodrill with the 31i A5, setting the G19 , then a G43 makes
my work coordinates go WHaCkY !! X,Y, and Z coordinates all change
when I invoke the G43, if G19 is set, then go back to normal with a
G49. WTF ????
Didn't use G19 before on this machine, but didn't expect anthing
different.
Single stepping the program, it takes off trying to plunge into the
part, and through the vise, even though the move is to Z .8 ( above
the part) (NO, it didn't crash.. But it Wanted to.)
Why would the G19 + G43 make the entire work coordinate sytem go
haywire?
I tried changing the G19 to a G17, and everthing was perfect, it knew
exactly where the work coordinates were, went exactly to the right
spot on the part, everthing is beautiful...
Except it can't do the G03 move, since it now complains about the G03
being out of plane...
I know it needs a G19 to make the G03 move, but the G19 completely
messes up the work coordinate system, and tries to shove the spindle
somewhere below the table, acoording to the distance to go.
Any ideas?
Is there some magic paramters? Or is this just a symptom of a really
screwy bug?
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Posted by Joe788 on March 10, 2008, 9:06 pm
Please log in for more thread options > I've used G17,18,19 on several controls... They all act exactly like I
> expect, and all exactly the same....
> Until I get to this Robodrill/Fanuc 31iA5.
>
> Anyway, I always used G17,18,19 to specify the plane for the circular
> interpolation. Just like the books describe.
> This has worked exactly as I expected on Bendix/Autocon controls,
> Bostomatic, Acramatic 2100, Siemens, etc. Even the examples on line,
> and in the Smid books..
> I specify G19 if I need to interpolate an arc in the YZ plane, and
> none of my coordinates are affected. All the G00, G01, G02, G03 moves
> specify the points just like I see them in my work coordinates, and if
> I need to make an arc in any plane, I set the G17,18,19 as needed.
>
> I have never seen the G19 change my work cordinates on any other
> controller before.
>
> On the Robodrill with the 31i A5, setting the G19 , then a G43 makes
> my work coordinates go WHaCkY !! X,Y, and Z coordinates all change
> when I invoke the G43, if G19 is set, then go back to normal with a
> G49. WTF ????
>
> Didn't use G19 before on this machine, but didn't expect anthing
> different.
>
> Single stepping the program, it takes off trying to plunge into the
> part, and through the vise, even though the move is to Z .8 ( above
> the part) (NO, it didn't crash.. But it Wanted to.)
>
> Why would the G19 + G43 make the entire work coordinate sytem go
> haywire?
>
> I tried changing the G19 to a G17, and everthing was perfect, it knew
> exactly where the work coordinates were, went exactly to the right
> spot on the part, everthing is beautiful...
> Except it can't do the G03 move, since it now complains about the G03
> being out of plane...
>
> I know it needs a G19 to make the G03 move, but the G19 completely
> messes up the work coordinate system, and tries to shove the spindle
> somewhere below the table, acoording to the distance to go.
>
> Any ideas?
> Is there some magic paramters? Or is this just a symptom of a really
> screwy bug?
That's very bizarre. I've used G19 on a 16i and 16MA before with no
problems at all.
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Posted by Half-nutz on March 10, 2008, 9:21 pm
Please log in for more thread options >
>
>
>
>
> > I've used G17,18,19 on several controls... They all act exactly like I
> > expect, and all exactly the same....
> > Until I get to this Robodrill/Fanuc 31iA5.
>
> > Anyway, I always used G17,18,19 to specify the plane for the circular
> > interpolation. Just like the books describe.
> > This has worked exactly as I expected on Bendix/Autocon controls,
> > Bostomatic, Acramatic 2100, Siemens, etc. Even the examples on line,
> > and in the Smid books..
> > I specify G19 if I need to interpolate an arc in the YZ plane, and
> > none of my coordinates are affected. All the G00, G01, G02, G03 moves
> > specify the points just like I see them in my work coordinates, and if
> > I need to make an arc in any plane, I set the G17,18,19 as needed.
>
> > I have never seen the G19 change my work cordinates on any other
> > controller before.
>
> > On the Robodrill with the 31i A5, setting the G19 , then a G43 makes
> > my work coordinates go WHaCkY !! X,Y, and Z coordinates all change
> > when I invoke the G43, if G19 is set, then go back to normal with a
> > G49. WTF ????
>
> > Didn't use G19 before on this machine, but didn't expect anthing
> > different.
>
> > Single stepping the program, it takes off trying to plunge into the
> > part, and through the vise, even though the move is to Z .8 ( above
> > the part) (NO, it didn't crash.. But it Wanted to.)
>
> > Why would the G19 + G43 make the entire work coordinate sytem go
> > haywire?
>
> > I tried changing the G19 to a G17, and everthing was perfect, it knew
> > exactly where the work coordinates were, went exactly to the right
> > spot on the part, everthing is beautiful...
> > Except it can't do the G03 move, since it now complains about the G03
> > being out of plane...
>
> > I know it needs a G19 to make the G03 move, but the G19 completely
> > messes up the work coordinate system, and tries to shove the spindle
> > somewhere below the table, acoording to the distance to go.
>
> > Any ideas?
> > Is there some magic paramters? Or is this just a symptom of a really
> > screwy bug?
>
> That's very bizarre. I've used G19 on a 16i and 16MA before with no
> problems at all.- Hide quoted text -
>
> - Show quoted text -
It's a strange one, for sure.
Did I describe that adequetely?
Thanks for confirming that it ~Should~ have worked.
There were some other REALLY STRaNgE things in this control before,
too.
Like going into edit, and searchig for T10, it would dump the whole
control.
Fanuc was totally stumped, gave up, and loaded in a new revison
operating system..
Thus making whatever the problem was, act, well different....
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Posted by Kirk Gordon on March 10, 2008, 10:25 pm
Please log in for more thread options Half-nutz wrote:
> I've used G17,18,19 on several controls... They all act exactly like I
> expect, and all exactly the same....
> Until I get to this Robodrill/Fanuc 31iA5.
>
> Anyway, I always used G17,18,19 to specify the plane for the circular
> interpolation. Just like the books describe.
> This has worked exactly as I expected on Bendix/Autocon controls,
> Bostomatic, Acramatic 2100, Siemens, etc. Even the examples on line,
> and in the Smid books..
> I specify G19 if I need to interpolate an arc in the YZ plane, and
> none of my coordinates are affected. All the G00, G01, G02, G03 moves
> specify the points just like I see them in my work coordinates, and if
> I need to make an arc in any plane, I set the G17,18,19 as needed.
>
> I have never seen the G19 change my work cordinates on any other
> controller before.
>
> On the Robodrill with the 31i A5, setting the G19 , then a G43 makes
> my work coordinates go WHaCkY !! X,Y, and Z coordinates all change
> when I invoke the G43, if G19 is set, then go back to normal with a
> G49. WTF ????
>
> Didn't use G19 before on this machine, but didn't expect anthing
> different.
>
> Single stepping the program, it takes off trying to plunge into the
> part, and through the vise, even though the move is to Z .8 ( above
> the part) (NO, it didn't crash.. But it Wanted to.)
>
> Why would the G19 + G43 make the entire work coordinate sytem go
> haywire?
>
> I tried changing the G19 to a G17, and everthing was perfect, it knew
> exactly where the work coordinates were, went exactly to the right
> spot on the part, everthing is beautiful...
> Except it can't do the G03 move, since it now complains about the G03
> being out of plane...
>
> I know it needs a G19 to make the G03 move, but the G19 completely
> messes up the work coordinate system, and tries to shove the spindle
> somewhere below the table, acoording to the distance to go.
>
>
> Any ideas?
> Is there some magic paramters? Or is this just a symptom of a really
> screwy bug?
There certainly are some reported bugs in this control's software;
but what you're seeing MIGHT be an actual feature. The control (I
think) is smart enough that it can change the whole world it lives in
when planes get switched around. G43/44, for example, normally act only
on Z, because most 3 axis controls live normally in the XY plane. On
newer controls, though, it's possible to have G43/44 act on WHATEVER
axis is not in the designated plane. It sounds like that's what's
happening to you.
If that's the case, you should be able to put in some nice round
coordinate commands, and a nice round offset value, and see them all
behave as if the G43/44 were assigned to X, when you call G19. And the
offset might also show up in Y when you call G18. If that works, then
you'll just need to find the parameter that turns this feature off. Be
thorough, though. There could be other features that go with this, that
all have to be set/reset together.
If you can't make it behave in SOME predictable way, however, then
you'd better start documenting everything that happens, and start
talking with Fanuc about the next version of software.
Good news is, the iron and the control both have the same brand name
on them, so you won't have to worry about two service companies pointing
fingers at each other and leaving you in the middle.
Please keep us updated. This (unfortunately for you) could be
interesting.
KG
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Posted by Kirk Gordon on March 10, 2008, 10:28 pm
Please log in for more thread options Half-nutz wrote:
> I've used G17,18,19 on several controls... They all act exactly like I
> expect, and all exactly the same....
> Until I get to this Robodrill/Fanuc 31iA5.
>
> Anyway, I always used G17,18,19 to specify the plane for the circular
> interpolation. Just like the books describe.
> This has worked exactly as I expected on Bendix/Autocon controls,
> Bostomatic, Acramatic 2100, Siemens, etc. Even the examples on line,
> and in the Smid books..
> I specify G19 if I need to interpolate an arc in the YZ plane, and
> none of my coordinates are affected. All the G00, G01, G02, G03 moves
> specify the points just like I see them in my work coordinates, and if
> I need to make an arc in any plane, I set the G17,18,19 as needed.
>
> I have never seen the G19 change my work cordinates on any other
> controller before.
>
> On the Robodrill with the 31i A5, setting the G19 , then a G43 makes
> my work coordinates go WHaCkY !! X,Y, and Z coordinates all change
> when I invoke the G43, if G19 is set, then go back to normal with a
> G49. WTF ????
>
> Didn't use G19 before on this machine, but didn't expect anthing
> different.
>
> Single stepping the program, it takes off trying to plunge into the
> part, and through the vise, even though the move is to Z .8 ( above
> the part) (NO, it didn't crash.. But it Wanted to.)
>
> Why would the G19 + G43 make the entire work coordinate sytem go
> haywire?
>
> I tried changing the G19 to a G17, and everthing was perfect, it knew
> exactly where the work coordinates were, went exactly to the right
> spot on the part, everthing is beautiful...
> Except it can't do the G03 move, since it now complains about the G03
> being out of plane...
>
> I know it needs a G19 to make the G03 move, but the G19 completely
> messes up the work coordinate system, and tries to shove the spindle
> somewhere below the table, acoording to the distance to go.
>
>
> Any ideas?
> Is there some magic paramters? Or is this just a symptom of a really
> screwy bug?
It just occured to me that my earlier post didn't answer your
question directly. Fanuc generally doesn't do anything different with
G17, G18, or G19, than what you've seen on other controls. In fact,
those others actually use what Fanuc originated for plane selection
techniques, many years ago. The one you're working with is definitely
acting outside the box. The only question is whether it's supposed to,
and how you can get it back in the box before it bites you.
KG
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> expect, and all exactly the same....
> Until I get to this Robodrill/Fanuc 31iA5.
>
> Anyway, I always used G17,18,19 to specify the plane for the circular
> interpolation. Just like the books describe.
> This has worked exactly as I expected on Bendix/Autocon controls,
> Bostomatic, Acramatic 2100, Siemens, etc. Even the examples on line,
> and in the Smid books..
> I specify G19 if I need to interpolate an arc in the YZ plane, and
> none of my coordinates are affected. All the G00, G01, G02, G03 moves
> specify the points just like I see them in my work coordinates, and if
> I need to make an arc in any plane, I set the G17,18,19 as needed.
>
> I have never seen the G19 change my work cordinates on any other
> controller before.
>
> On the Robodrill with the 31i A5, setting the G19 , then a G43 makes
> my work coordinates go WHaCkY !! X,Y, and Z coordinates all change
> when I invoke the G43, if G19 is set, then go back to normal with a
> G49. WTF ????
>
> Didn't use G19 before on this machine, but didn't expect anthing
> different.
>
> Single stepping the program, it takes off trying to plunge into the
> part, and through the vise, even though the move is to Z .8 ( above
> the part) (NO, it didn't crash.. But it Wanted to.)
>
> Why would the G19 + G43 make the entire work coordinate sytem go
> haywire?
>
> I tried changing the G19 to a G17, and everthing was perfect, it knew
> exactly where the work coordinates were, went exactly to the right
> spot on the part, everthing is beautiful...
> Except it can't do the G03 move, since it now complains about the G03
> being out of plane...
>
> I know it needs a G19 to make the G03 move, but the G19 completely
> messes up the work coordinate system, and tries to shove the spindle
> somewhere below the table, acoording to the distance to go.
>
> Any ideas?
> Is there some magic paramters? Or is this just a symptom of a really
> screwy bug?