Rigid Tappin wiht Fadal... question

[Longbow]

When I am tapping more than one hole... as this morning tapping several hundred in one part and I hit slide hold in order to check the first hole after I restart it it looses the G84.2 or something.It resumes tapping under the feed and speed it is set at with the control knobs rather than the cycle in the program. Does anyone understand what Im talking about and if so is there a way I can make it resume with the correct feed and speed?

[Thad]

I've used slide hold before with no problems. Can you use single step as a workaround?

 

quote:

---

It resumes tapping under the feed and speed it is set at with the control knobs rather than the cycle in the program

---

Rigid tapping should overrided the spindle and feed override knobs. Are you saying that if you adjust the knobs, it will tap faster or slower? If so, that's weird!

 

Thad

[Noel]

I use G84.1 for rigid taping on our fadels.Was that a typo or is there a g84.2 ?

 

 

Noel

[Longbow]

Yes there is a G84.2 didnt know there was a G84.1 hehehe

 

Thad that is exactly what Im saying...if my feed knob isnt set perfectly, and you know how hard that would be, after pressing slide hold it will over ride the Rigid tapping. Therefore my rpm doesnt match the feed anymore.

[Barghest]

G84.2 is to prepare the machine for ridgid tap

G84.1 is ridgid tap

 

G0G90S500.1

X0Y0E1

Z.5H1M8

G84.2(PREPARE FOR RIDGID TAP)

G84.1 BLAH BLAH BLAH

 

This is how I was taught to run ridgid tap on a Fadal. Its worked for many years now. Maybe the reason your machine isnt overriding the feed and speeds controls, not really sure tho ive never had that problem.

[Tim Johnson]

G84.2 sets up rigid tapping mode

G84.1 is the code that does the tapping

 

 

N0290TM06S

N0300G90M05

NG84.2

N0350G00XYE01

N0360ZH

N0370G99G84.1RZSFM08

N0390G80

[Thad]

quote:

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Yes there is a G84.2 didnt know there was a G84.1 hehehe

---

DOH! I overlooked the actual G code. G84.2 is defined as "Prepare for rigid tap cycle." G84.1 is the actual rigid tapping code. Try that and see if you can slide hold in the middle. I'll bet you can.

 

Good call Noel! Edit: Yeah, the rest of you guys who beat me too.

 

Thad

[Tim Johnson]

I guess I'm too slow

[Longbow]

Duh is right ... I knew that too.. sometimes cant think.. but yes they are both there.

 

G84.2

G0G90X2.5972Y-4.5

H9Z.1M8.1L0.0

G84.1G99X2.5972Y-4.5Z-1.06R.1F5.90563S100.2

[Longbow]

And yes it worked... thanks agin guys....

[Thad]

Longbow, you must be running Format 2 on your Fadal?

 

Thad

[Andy]

Dont feel bad Longbow. I don't know lots of things that that I know!

[CNCme]

Good Day,

 

Can someone tell me in the S1000.2

what the .2 does to the RIDGID TAP

and in X2 mr1 I get A second speed at the second hole without the .2 like this:

 

 

G0 G90 E1 X2.5972 Y-4.5

G43 H9 Z.1 M8

G84.1 G99 Z-1.06 R.1 F50. S1000.2

X1.0 S1000 (RESETS BACK WITHOUT .2)

X2.

X3.

G80

 

Tony G

CNCme Engineering LLC

X Beta Site

SO Almost Employed Senior Programmer

N.E Massachusetts - Southern New Hampshire

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[TheePres]

i always understood xxxx.1 and xxxx.2 on FADAL is to force Spindle to stay in low or high gear

[Guest]

Mail Tony

[Surface]

I don't know if it were nessasary, but when rigid tapping with my Fadal control, I would disable the over-ride pots....Maybe M48/M49

[Zoober]

.1 and .2 is forcing the range. It is recommended to rigid tap in high range because the accel/decel is quicker than in low. The bad thing is, you lose torque, so be careful with larger taps.