Cent6 post issue

[KMaynard]

I'm having an issue with our Cent6 post. We are tapping a plate with both 8-32 and 4-40 taps .. The program is drilling all holes then tappping all holes (not drill,tap,drill,tap) If I run 2 tapping cycles next to each other I get a good tap cycle then the 2nd cyle removes our g88 and if feeds down and rapids to the next hole without reversing and retracting ..

 

O1234 (T )

N1 G20 G40 G70 G90

N2 T1 M06

( #8-32 TAPRH DRILL/MISC )

N3 G91 D1 G43 H1 Z0.0

N4 G90

N5 G00 X-2.6686 Y2.6251

N6 S500 M03

N7 G88 G99 X-2.6686 Y2.6251 Z-.5 R.1 P0. F.0313

N8 G80

N9 G00 G40 G32

N10 T2 M06

( #4-40 TAPRH )

N11 G00 X-2.6686 Y2.6251

N12 G91 D2 G43 H2 Z0.0

N13 G90

N14 S500 M03

N15 G99 X-2.6686 Y2.6251 Z-.25 R.1 P0. F.025

N16 G80

N17 G32 M05

N18 G53 Y0.0

N19 M30

%

 

If I change this to a drill,tap,drill,tap cycle it outputs the G88 normally...

 

Any ideas here guys?

 

Thanks

Kevin

[Roger Martin from CNC Software]

Sounds ike a classic modality issue.

What does the PTAP postblock code look like in your PST?

[KMaynard]

ptap # Canned Tap Cycle

frrtap = 1 / n_tap_thds

n, sgdrill, pg9899, *x, *y, *depth, *refht, *dwell, *frrtap

[chris m]

it should probably be *sgdrill instead of sgdrill; no?

[Steve Biehl - Cimquest Inc]

yep, that should work. Kevin, if you are still having problems, give me a call.

[KMaynard]

Worked great guys ...thanks for the help

[chris m]

While you're at it, a couple of the other canned cycles in that post share the same problem

 

You should also be aware that the Cent posts utilize the XR, YR, ZR variables that could cause you probs with the maintenance release as outlined here on the forum so be careful

[Avs_Fan]

Hi All,

Thanks for the original post & the replies.

We have 5 posts based on the Cent6 post that are now fixed.

We haven't done much drilling & tapping with them (mostly milling) & so had not encountered the problem.

 

chris m's last post caught us by surprise.

I earlier had searched thru our posts with Cimco Edit looking for "XR", "YR", "ZR" & found none.

I went back to search again & realized the significance of the "Ignore Case" check box.

My 1st searches had the box unchecked. My fault. Oh,

Now I have MR0304 installed & a total of 6 posts with the xr, yr, zr in them.

 

I think the word "Serendipity" applies here.

Without the Forum, we would be unaware of either issue.

This Forum Rocks! Thanks All!