Wrong Feed Posted - X2 MR2

[CNCGUY]

Hey all,

 

When I post the thread mill by itself, the feed rates are correct. (see first code)

 

When I post after some other operation, the feed rates round to one decimal. (see second code)

 

Post is modified fanuc. It works with MPMASTER. I have debugged and looked, but not sure what to look for.

 

 

code:

---

N7

T7 M06 H7 (CORRECT FEED)

G54 G00 G90 X1.35 Y-1.5

S3972 M03

G43 Z.1

G01 Z-.8 F50.

G41 D7 Y-1.4347 F1.93

G03 X1.2347 Y-1.5 Z-.7821 I-.0392 J-.0653

X1.4653 Z-.7464 I.1153 J0.

X1.2347 Z-.7107 I-.1153 J0.

X1.35 Y-1.5653 Z-.6929 I.0761 J0.

G01 G40 Y-1.5

Z-.8 F50.

G41 Y-1.425 F2.04

G03 X1.225 Y-1.5 Z-.7821 I-.04 J-.075

X1.475 Z-.7464 I.125 J0.

X1.225 Z-.7107 I-.125 J0.

X1.35 Y-1.575 Z-.6929 I.085 J0.

G01 G40 Y-1.5

G00 Z.1

M09

M05

G53 G00 Z0.

G53 X-15. Y0.

M30

---

code:

---

N7

T7 M06 H7 (IN-CORRECT FEED)

G54 G00 G90 X1.35 Y-1.5

S3972 M03

G43 Z.1

G01 Z-.8 F50.

G41 D7 Y-1.4347 F1.9

G03 X1.2347 Y-1.5 Z-.7821 I-.0392 J-.0653

X1.4653 Z-.7464 I.1153 J0.

X1.2347 Z-.7107 I-.1153 J0.

X1.35 Y-1.5653 Z-.6929 I.0761 J0.

G01 G40 Y-1.5

Z-.8 F50.

G41 Y-1.425 F2.

G03 X1.225 Y-1.5 Z-.7821 I-.04 J-.075

X1.475 Z-.7464 I.125 J0.

X1.225 Z-.7107 I-.125 J0.

X1.35 Y-1.575 Z-.6929 I.085 J0.

G01 G40 Y-1.5

G00 Z.1

M09

M05

G53 G00 Z0.

G53 X-15. Y0.

M30

---

[rdshear]

Have you checked to see if the post blocks for the previous cycles changed the format for the feed variable? The line would probably be something like

 

result = newfs( ## ,feed)

 

where the ## would be a number representing a format statement in your post that would format the variable to one place after the decimal.

 

A quick fix could be to change the format at the top of your threading post block with the above statement substituting the ## for the format you want, then revert it to what it was at the bottom.

 

Just some food for thought.

 

BTW, I am by no means an expert... I just know enough to be dangerous from working on our posts. Also, don't forget to back up your post prior to editing.

 

YMMV

 

Rick

[CNCGUY]

Thanks Rick,

 

In the pcanceldc block, I ended up adding

code:

---

result = newfs(12 ,feed)

---

Seems to only happen after drill operations. Probably not the right way to fix it - but it works.

[rdshear]

No problem, glad I could help...