Hi I'm having a problem with my haas vf-2,I keep getting a error of 350 cutter comp look ahead error,remove some interveaning blocks.I get this at the end of my work before I g28 could any one help I'm new to programming mills.The program runs fine in my old vf-2 but not in the newer control.

Thank you for your time
joe

Joe,
That is weird it runs in the older machine but not the newer one. First thing I was thinking was you did not have the proper syntax but if it had worked before.

Can you post the code you are having a problem with so we can look at it?

Stevo

(The opinions in this post are my own and not those of machinetoolhelp.com and its management)

N7 ( .500 1/2 HIGH SPEED ENDMILL 4-FLUTE)
T7 M06
G54
S750
G00 G90 X4.5436 Y2.3499 (X4.1736)
G43 H07 Z1. M08
G98 G83 Z-0.375 R0.05 Q2000 F4.
X5.7936
G80

M31

G00
G42 D07 X10.9636 Y2.3499
G00 Z0.05
G01 Z-0.375 F6.
G02 X10.2686 Y1.6549 R0.695
X9.5736 Y2.3499 R0.695
X10.2686 Y3.0449 R0.695
X10.9636 Y2.3499 R0.695
G00 Z1.
G40
M09
M05
G28 G91 Z0.
M01

this is the code stevo

So your code runs fine then bombs out on the G28 line?

G00 Z1. --executed
G40 --executed
M09 --executed
M05 --executed
G28 G91 Z0. --alarm out 350
M01

Look ahead problems can be a bit tricky sometimes. When you get the alarm, without resetting the alarm go back and look at the program to see exactly which line is being exectued and alarming out on. Now with the look ahead you may have some blocks colored because they are buffered but not executed. So you may want to post some of the code that is after the M01.

Stevo

(The opinions in this post are my own and not those of machinetoolhelp.com and its management)

Stevo,
The machine stops at G0 Z1.0 it does not rapid off the part and stops in the control on the next tool change.Ill post the code

N7 ( .500 1/2 HIGH SPEED ENDMILL 4-FLUTE)
T7 M06
G54
S750
G00 G90 X4.5436 Y2.3499 (X4.1736)
G43 H07 Z1. M08
G98 G83 Z-0.375 R0.05 Q2000 F4.
X5.7936
G80

M31

G00
G42 D07 X10.9636 Y2.3499
G00 Z0.05
G01 Z-0.375 F6.
G02 X10.2686 Y1.6549 R0.695
X9.5736 Y2.3499 R0.695
X10.2686 Y3.0449 R0.695
X10.9636 Y2.3499 R0.695
G00 Z1.
G40
M09
M05
G28 G91 Z0.
M01

N8 ( 5/16-18 TAP )
T8 M06
G54
S300
G00 G90 X12.3786 Y2.3499
G43 H08 Z1. M08
G98 G84 Z-0.9 R0.5 F16.666
G00 Z1.
G80
M05
G91 G28 Z0. M09
G91 G28 Y0
G90 X7.
M33
M30

I very rarely use cutter comp but IIRC when you cancel cutter comp with G40 that you need a move that is the same or exceeds the distance when activating it before you make a move in Z. We made need some guys that know the proper syntax of cutter comp to chime in. By looking at some of my notes I would try something like this when canceling cutter comp.

G00
G42 D07 X10.9636 Y2.3499
G00 Z0.05
G01 Z-0.375 F6.
G02 X10.2686 Y1.6549 R0.695
X9.5736 Y2.3499 R0.695
X10.2686 Y3.0449 R0.695
--G40X10.9636 Y2.3499--
G00 Z1.
M09
M05
G28 G91 Z0.
M01

Stevo

(The opinions in this post are my own and not those of machinetoolhelp.com and its management)

please send your drawing so that i can create the program with crc and send it you
my
A.Vijayaraghavan
chennai

Consider adding an XY move that exceeds the radius of the tool, on the G40 line before moving the Z axis.

I thank all of you for the help I added the G40 to the last line and it runs in the control,I won't know if it will work properly untill the next time I run the job,again thank you Stevo and Strat for your time.

Joeski63

Your welcome for the help.

You will probably have to have the X,Y move with the G40 to make it work. Let us know if that fixes the problem.

Stevo

(The opinions in this post are my own and not those of machinetoolhelp.com and its management)

I do not have experience with Haas, but two consecutive non-XY moves in compensation mode might result in incorrect positioning of the tool at the next point, though it would not give any error message.

I am curious to know if your problem got solved.

Hey Sinha...hows it going? Welcome to the group.

Haas should have the same syntax as the fanuc when it comes to cutter comp.

Stevo

(The opinions in this post are my own and not those of machinetoolhelp.com and its management)

Thanks.
I did not get any e-mail alert for your reply. Or, does it take some time?
Sinha

Sinha,
It should not take any time to receive an email notification. I have a different control panel setting then you do but you should be able to find something labeled "Automatic Thread Subscription". Under that there should be a box to click "instant email notification". Check to make sure you have that selected. If you continue to have problems let me know and I will look into it further.

Stevo

(The opinions in this post are my own and not those of machinetoolhelp.com and its management)

jut to check if I receive email notification.

Sinha...is your email notification working? Have you checked the settings?

Stevo

(The opinions in this post are my own and not those of machinetoolhelp.com and its management)

Yes.
I got the notification.
Based on my experience, I would suggest to make "instant e-mail notification" the default choice. Let the site owner know this.
Thanks.