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Author Topic: Switching from offsets (G54, G55... etc)  (Read 4481 times)

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Switching from offsets (G54, G55... etc)
« on: December 20, 2011, 12:58:51 PM »
Hello all, I tried searching for this since it has to be something brought up on the forums, but I couldn't find anything :P

I'm running the same part on different offsets. When the machine moves to the next offset to start the program over the Z-axis drops .100 between moves.


Here is a sample of my program:

N1 G00 G40 G80 G90
T01 M06 (3/8 3 FLUTE CRB EM)
M08
S3250 M03
G54 X.23 Y-2.1525
G43 Z.1 H01
G01 Z-.385 F50.
G41 D01 X.23 Y-1.8405 F30.

Blah blah blah

G01 X-.03 Y-1.6355
G03 X-.23 Y-1.8355 I0 J-.2 F30.
G40 G01 X-.23 Y-2.1475
G00 Z1.
G55 X.23 Y-2.1525
Z.1
G01 Z-.385 F50.
G41 D01 X.23 Y-1.8405 F30.


I have the Z-axis move "G00 Z1." to clear any clamps, but when the next line "G55 X.23 Y-2.1525" the Z drops .100 then while moving to the new offset it will raise back to 1in. I have no height comp on any of the offsets (AKA Z's are set to 0).


Any help would be great!!!


Thanks,

Aero
Re: Switching from offsets (G54, G55... etc)
« Reply #1 on: December 20, 2011, 02:03:03 PM »
Hi Aero,

I'd write this way I don't know if it would make any difference to your problem, but I use work offsets all the time and I don't get the moves you are seeing.

G01 X-.03 Y-1.6355
G03 X-.23 Y-1.8355 I0 J-.2 F30.
G40 G01 X-.23 Y-2.1475
G00 Z1.
G55
G00 X.23 Y-2.1525
G00 Z.1

G01 Z-.385 F50.
G41 D01 X.23 Y-1.8405 F30

ATB
Derek
You can "chop it off" but can't "chop it on"
Re: Switching from offsets (G54, G55... etc)
« Reply #2 on: December 20, 2011, 05:17:35 PM »
I tried that and got the same results :(

Offline Hood

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Re: Switching from offsets (G54, G55... etc)
« Reply #3 on: December 20, 2011, 05:59:54 PM »
Attach your xml, your fixtures.dat, tools3.dat and your code and maybe the problem can be found.
Hood
Re: Switching from offsets (G54, G55... etc)
« Reply #4 on: December 21, 2011, 10:51:34 AM »
OK here are the files, zipped.



Thanks for the help :)

Aero

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Re: Switching from offsets (G54, G55... etc)
« Reply #5 on: December 21, 2011, 01:27:05 PM »
I see you are using the DSPMC, possibly the issue relates to that?
Hood
Re: Switching from offsets (G54, G55... etc)
« Reply #6 on: December 21, 2011, 01:58:23 PM »
I will talk to Rufi and see what he thinks.

Offline Hood

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Re: Switching from offsets (G54, G55... etc)
« Reply #7 on: December 21, 2011, 02:49:41 PM »
Let us know either way please.
Hood
Re: Switching from offsets (G54, G55... etc)
« Reply #8 on: December 22, 2011, 12:34:21 PM »
I will once I talk to Rufi.


Thanks,

Aero