peck Dwell problem

[Müřlıń®]

I had some c-sunk holes that I need to use the dwell on.

 

My post did something wierd like this:

 

 

G0 G80 G40 G20

T7 M6 ( 1. SPOTDRILL )

G0 G90 G54 X-15.063 Y14.5 S1528 M3

G43 H7 Z.5

G99 G83 X-15.063 Y14.5 Z-.45 R.5 Q.1 F24.448

Y12.5 P2000

Y-12.5

Y-14.5

X15.062

Y-12.5

Y12.5

Y14.5

G80

M5

G0 G28 G91 Z0

G0 G90 G129 X0. Y0.

M30

%

 

 

The dwell skipped the first hole. Any Ideas....

 

 

Murlin teh inexperienced....

[Guest CNC Apps Guy 1]

Make sure that you have a dwell command in pdrill

 

HTH

[Müřlıń®]

Thanks James

 

 

Murlin

[Mike Mattera - TFM]

dwell is the same as the previous value, so it's skipped. You can have a dwell with a G83 peck drill command? What control is it? If it used a dwell it should be active for all subsequent holes.

 

Mike Mattera

 

pdwell # force dwell

if dwell > 0 *dwell

 

 

ppeck # pecking cycle

pbld, n, x, y, depth, initht, pdwell

[Müřlıń®]

quote:

---

You can have a dwell with a G83 peck drill command? What control is it?

---

I see your point Mike, The G83 should already call up a dwell.... but the control wont dwell on the G83.

 

It is a HAAS control, one of the new ones.

 

Here is my pdrill and ppeck. Pdrill has dwell in it already:

 

pdrill #Canned Drill Cycle

pdrlcommonb

pcan1, pbld, n, *sgdrlref, *sgdrill, pfxout, pfyout, pfzout, pcout,

prdrlout, dwell, *feed, strcantext, e

pcom_movea

 

ppeck #Canned Peck Drill Cycle

pdrlcommonb

pcan1, pbld, n, *sgdrlref, *sgdrill, pfxout, pfyout, pfzout, pcout,

prdrlout, *peck1, *feed, strcantext, e

pcom_movea

 

 

Should my ppeck also have a dwell command in there?

 

I don't think so because I only want the dwell on the very last peck. But I am post processor challanged

 

Ahh I just saw the last of your post, you gave me the answer....DOH!!!

 

 

Murlin

[Steve Biehl - Cimquest Inc]

murlin,

are you looking for a G4Pxx after the drilling but before the G80?

 

if so,

 

code:

---

pcanceldc       #Cancel canned drill cycle

result = newfs (three, zinc)

z = initht

if cuttype = one, prv_zia = initht + (rotdia/two)

else, prv_zia = initht

pxyzcout

!zabs, !zinc

prv_gcode = zero

pcan

if drillcyc = 1 & dwell > 0, pbld, n, "G04", *dwell, e

pcan1, pbld, n, "G80", strcantext, e

pcan2

 

---

[Thad]

Murlin, can you use a G82 with a P? It's like a G81 with a dwell at the end. That's how Fadals work.

 

Thad

[Müřlıń®]

I'm not sure Steve, it pecked just fine without the G4 with just a G83 & P2000.

 

G99 G83 X-15.063 Y14.5 Z-.45 R.5 Q.1 F24.448

Y12.5 P2000

 

The hole at y12.5 and all the ones after that pecked and dwelled on the last peck like it was suppose to.

 

But the first hole at X-15.063,Y14.5 didn't dwell, it just pecked. It seems to me it should have also dwelled, because the G83 is suppose to be a peck with dwell.

 

Thad,

I am not that familiar with these controls.

I guess I will just have to experiment tomarrow

with the suggestions you all have provided.

 

Thanks guys..

 

 

Murlin

[Mike Mattera - TFM]

I didn't know any control did a dwell in a G83. That's great that it only did the dwell at the end of the peck. Just like you'd want it to do.

 

Looks like I'll have to tweek my Fadal posts one more time.

 

Mike Mattera

[Müřlıń®]

Well it really didnt dwell on the first hole. The post notes said that G83 was a peck with dwell. So that is all I was going on.

 

The control didn't dwell until the P2000 was on the line with the second hole.

 

I am new to these drilling cycles.....

 

I am thinking the only way to get it to work the way I want it to is to either do the first hole twice, or add a dummy hole off the workpiece for the first hole

 

Murlin

[Thad]

Mike, I didn't think a Fadal could dwell on a G83. The P word is already assigned as the "peck clearance." I would be surprised if you could throw in a G4 PXXX and get it to work. Let me know what you find out.

 

Murlin, what happens if you put the P2000 on the G83 line? It seems that should work based on what you're telling us.

 

Thad

[Müřlıń®]

I will try that too Thad

 

 

Murlin