[Cjimenez84]

I have a mori sl25-smc with ot control. When attempting to use g71 cycle I get ps/064 alarm(shape program not monotonously) don't know what i'm doing wrong!!!

[spudnic123]

I don't know if this helps but the start position and the finish position needs to be the same in x axis

[Cjimenez84]

Thanks but I just tryed it n still getting 064 alarm.

[spudnic123]

On the first line try not putting in a z command just put an x axis. Type your programme on here and I will see if I notice anything wrong with it

[Cjimenez84]

G80G41G54G18
T0101
G50S600
G97S300
M08
G00X3.125Z.25
G71U.1R.1G71P1Q2U.02W.01F.006
N1G00X1.0
G01X.5Z.0
G01S-1.4796
G01X1.3352Z-6.7511
N2G01X3.125
G70
M1
M9
G00X10.0Z3.0

[Heavy_Metal]

Hi,

I made some changes in your program.
You have to split G71 into 2 lines, it's not allowed to put them in 1 line.
Where is the S-1.4796 for, I think the shape of your product is not ok.


G80G41G54G18
T0101
G50S600
G97S300
M08
G00X3.125Z.25
G71U.1R.1
G71P1Q2U.02W.01F.006
N1G00X1.0
G01X.5Z.0
G01S-1.4796 ( ????? )
G01X1.3352Z-6.7511
N2G01X3.125
G70P1Q2
M9
G00X10.0Z3.0 T0100M5
M30

Greetings from
The Netherlands.

[angelw]

I have a mori sl25-smc with ot control. When attempting to use g71 cycle I get ps/064 alarm(shape program not monotonously) don't know what i'm doing wrong!!!

There are two types of G71 cycle, Type I and Type II. Type I is initiated by including only a X(U) address in the P referenced block of the profile description. Type I does not support profile shapes that contain concave forms in the profile, all X moves must be monotonous in direction from Start to Finish of profile description. G71 Type II allows for concave forms to exist in the profile description and is initiated by commanding an X(U) and Z(W) address in the P referenced block of the profile description. Accordingly, having the P reference block with only an X address included, and a profile description that has Non-Monotonous X moves, as is the case with your program, will cause this error.

Also, your use of the G70 finishing cycle call is incorrect. G70 requires a P and Q reference address.
For example:
G70 P1 Q2

Regards,

Bill

[Cjimenez84]

that S was supdupposed to be a Z move my bad should of proof read it but the
G71'S are in separate lines. sorry about the confusionguy but I still need help.thanks

[angelw]

that S was supdupposed to be a Z move my bad should of proof read it but the
G71'S are in separate lines. sorry about the confusionguy but I still need help.thanks

If you initiate a G71 Type I cycle, as you have by specifying an X only address in the P referenced block, and Non-Monotonous X moves in the part profile, as you have in your listed program, then a P/S 64 error will result. Try the following:

G80G41G54G18
T0101
G50S600 (If you use G97 you don't have to use G50 to limit the spindle speed)
G97S300
M08
G00 X3.125 Z.25
G71 U.1 R.1
G71 P1 Q2 U.02 W.01 F.006
N1 G00 X1.0 W0.0
G01 X.5 Z.0
G01 Z-1.4796
G01 X1.3352 Z-6.7511
N2 G01 X3.125
G70 P1 Q2
M9
G00X10.0Z3.0 T0100M5
M30

However, as Z Zero is probably the end of the workpiece, with everything in the Z+ direction of it being fresh air, the program profile from P referenced to Q referenced block should be as follows:

N1 G00 X0.5
G01 Z-1.4796
G01 X1.3352 Z-6.7511
N2 G01 X3.125

In the above case, G71 Type I cycle will work without error, and the same shape work profile will result without any non-monotonous X moves in the profile.

Regards,

Bill

[Cjimenez84]

Thanks Bill I will try that on Monday you have been a great help I will post on Monday if it works but I think it will . Thanks again!

[Freeholddesign]

Hi , I also facing the same problem ( the finishing shape is not monotonous change ) , can anyone please help me ? Thanks a lot.

T0202 M8
G50 S1500
G96 S200 M3
G0 X54. Z8.
G71 U.45 R.5
G71 P11 Q12 U.15 W.025 F.23
N11 G0 X0.
G1 Z0. F.5
X14.998
G3 X17.774 Z-1.163 R1.41
G1 X19.5 Z-6.015
Z-64.18
X28.5
Z-84.18
X31.328 Z-82.766
G0 X150. Z20.M9
G28 U0. W0. M05
T0100
M30
%

and


T0202 M8
G50 S1500
G96 S200 M3
G0 X25. Z8.
G71 U.45 R.5
G71 P11 Q12 U.15 W.025 F.23
N11 G0 X0.
G1 Z-.058 F.5
X14.509 Z-4.431
X15.227 Z-4.463
X15.604 Z-15.293
X16.4 Z-15.696
Z-81.08
X21.
Z-96.08
X23.828 Z-94.666
N12 X25.
G0 X150. Z20. M9
G28 U0. W0. M05
T0100
M30
%

[dcoupar]

Hi , I also facing the same problem ( the finishing shape is not monotonous change ) , can anyone please help me ? Thanks a lot.

T0202 M8
G50 S1500
G96 S200 M3
G0 X54. Z8.
G71 U.45 R.5
G71 P11 Q12 U.15 W.025 F.23
N11 G0 X0.
G1 Z0. F.5
X14.998
G3 X17.774 Z-1.163 R1.41
G1 X19.5 Z-6.015
Z-64.18
X28.5
Z-84.18
X31.328 Z-82.766
N12 X54. <<<<<<<<<<<<<<<<< MISSING THIS BLOCK
G0 X150. Z20.M9
G28 U0. W0. M05
T0100
M30
%

and


T0202 M8
G50 S1500
G96 S200 M3
G0 X25. Z8.
G71 U.45 R.5
G71 P11 Q12 U.15 W.025 F.23
N11 G0 X0.
G1 Z-.058 F.5
X14.509 Z-4.431
X15.227 Z-4.463
X15.604 Z-15.293
X16.4 Z-15.696
Z-81.08
X21.
Z-96.08
X23.828 Z-94.666 <<<<<<<<<<<<< Z reverses direction
N12 X25.
G0 X150. Z20. M9
G28 U0. W0. M05
T0100
M30
%

Looks like the only two problems.

[Freeholddesign]

Hi dcoupar, as your reply first one question "missing this block" I had add in, but still come out same problem, and second " Z reverses direction" I am not understand, is it change X and Z ?

first one program item :

Attachment 263660




second program item:

[dcoupar]

In G71, Z must always move in the same direction after the 1st N block (N11). In the first example you move from Z-64.18 to Z-84.18 (Z-neg move) to Z-82.766 (Z-pos move). This is what I mean by "Z reverses direction".
I saw the missing N12 block in the 1st example and missed the fact that Z reverses direction in that example as well.


T0202 M8
G50 S1500
G96 S200 M3
G0 X54. Z8.
G71 U.45 R.5
G71 P11 Q12 U.15 W.025 F.23
N11 G0 X0.
G1 Z0. F.5
X14.998
G3 X17.774 Z-1.163 R1.41
G1 X19.5 Z-6.015
Z-64.18
X28.5
Z-84.18
X31.328 Z-82.766 <<<<<<<< Z reverses direction.
N12 X54. <<<<<<<<<<<<<<<<< MISSING THIS BLOCK
G0 X150. Z20.M9
G28 U0. W0. M05
T0100
M30
%

and


T0202 M8
G50 S1500
G96 S200 M3
G0 X25. Z8.
G71 U.45 R.5
G71 P11 Q12 U.15 W.025 F.23
N11 G0 X0.
G1 Z-.058 F.5
X14.509 Z-4.431
X15.227 Z-4.463
X15.604 Z-15.293
X16.4 Z-15.696
Z-81.08
X21.
Z-96.08
X23.828 Z-94.666 <<<<<<<<<<<<< Z reverses direction
N12 X25.
G0 X150. Z20. M9
G28 U0. W0. M05
T0100
M30
%

[Freeholddesign]

In G71, Z must always move in the same direction after the 1st N block (N11). In the first example you move from Z-64.18 to Z-84.18 (Z-neg move) to Z-82.766 (Z-pos move). This is what I mean by "Z reverses direction".
I saw the missing N12 block in the 1st example and missed the fact that Z reverses direction in that example as well.


T0202 M8
G50 S1500
G96 S200 M3
G0 X54. Z8.
G71 U.45 R.5
G71 P11 Q12 U.15 W.025 F.23
N11 G0 X0.
G1 Z0. F.5
X14.998
G3 X17.774 Z-1.163 R1.41
G1 X19.5 Z-6.015
Z-64.18
X28.5
Z-84.18
X31.328 Z-82.766
N12 X54.
G0 X150. Z20.M9
G28 U0. W0. M05
T0100
M30
%

and


T0202 M8
G50 S1500
G96 S200 M3
G0 X25. Z8.
G71 U.45 R.5
G71 P11 Q12 U.15 W.025 F.23
N11 G0 X0.
G1 Z-.058 F.5
X14.509 Z-4.431
X15.227 Z-4.463
X15.604 Z-15.293
X16.4 Z-15.696
Z-81.08
X21.
Z-96.08
X23.828 Z-94.666
N12 X25.
G0 X150. Z20. M9
G28 U0. W0. M05
T0100
M30
%

I understand and I got it , thank you very very much.

For X delete it or keep it ?

[dcoupar]

The X150.? It's not hurting anything.

[Freeholddesign]

Nono, I mean red colour highlight X31.328 and X23.828.

[dcoupar]

I usually chamfer the edge of the stock in the block before N12, but if you don't want a chamfer, then you could delete the red X moves.

[Freeholddesign]

OK , i got it thank you very much.

[dcoupar]

You're welcome.