MPA2100E post question when tapping

[cadmonster66]

getting a strange feed rate when using G84.1, here is sample code

(MSG, 1/4-20 TAPRH TOOL - 2 DIA. - .25)

(MSG, DRILL)

:T2 M6

N10 G0 G90 X-1.2903 Y.4521 S200 M3

N20 Z2. M8

N30 G95

N40 G84.1 Z-.5 R.1 W2. F.05

in my parameters page RPM is 200 and the feed rate is 10.0. Why is it when i post the program i come up with Feed of .05. Could some-one please explain

Thanks

John

[cadmonster66]

Also with the Cinn Arrow we have when ya program tapping in g84.1 i think your feed rate in the program at the machine is 1/20(example for 1/4-20) it is not a normal Feed decimal

Thx

John

Sorry i'm new to the machine just got it up and running

[PE @ IHS]

Your tool data is probably set to ipr rather than ipm. Have you checked that page?

 

I think you are actually safer running it in ipr mode. It looks like your post correctly outputs G95 (ipr) mode prior to tapping, and I presume it calls up G94 to cancel it before the next tool starts cutting.

[cadmonster66]

Peter,

Yes it does call up the proper G codes, where would i look to change to Ipm

thx

John

[M. Anderson]

John,

 

Look in your post's -

 

"General Output Settings"

 

- section, and see if you can find a line -

 

"use_pitch : 1 #0 = Use feed for tapping, 1 = Use pitch for tapping"

 

If it is in you post?

 

BACKUP YOUR POST, before doing any edits!

 

Later,

 

Mark Anderson

[cadmonster66]

Mark or Peter,

In the programs we have in the machine the feed is entered as 1/20 is the any way i can get the post to generate the program with that type of feed instead or a decmial

thx

John

[M. Anderson]

John,

 

Are you saying the programmed feed rate is showing up in the program as – “F 1/20” or as in your first post – “F.05”?

 

Cincinnati controls and machines are something I thankfully have never had too work with – but even at that it should take either “IPR” or “Thread Pitch” programming for the feed on the tap cycle.

 

Never seen a control that could even use a format of - “F 1/20” .

 

If the control uses anything close to standard code:

 

– for a ¼-20 tap –

 

If it uses feed for tapping (F.05) would be correct.

 

If it uses pitch for tapping (F20.) would be correct.

 

The spindle will feed down (.05), per revolution in either case – (F.05) is done calculated the other (F20.), the control will calculate the proper feed based on the pitch of the thread.

 

But in either case – YOU need to know which the machine is set to take.

 

Do you have the manuals? Look in them - it should tell?

 

If not call the local Cinci. Dealer, they may be able to tell you – or someone here may even know?

 

HTH

 

Later,

 

Mark Anderson

[cadmonster66]

Mark,

i will double check tomrow and let ya know after work tomrow. there is for sure an equation of 1/20 in the threading cycle . new to this dammmmmmmmmmm machine. Really starting to hate this Cinn Arrow and Sabre se got

will look at full cycle tomrow

thx John

thought there might be some Cinn machine guys here. Guess i'm the only one lolololo

[cadmonster66]

Mark,

He we go this is how tapping cycle looks in the programs,

G95 S450 M3

X.625 Y-.462

Z.5

G84.1 Z-.8 J2 R.1 S450 F1/18

Z3.0

M5

G98X0Y20.0

Sorry didn't get to call Cinn for tech support busy day today. What ya think of the cycle

Thx

John

[jbel]

quote:

---

G84.1 Z-.8 J2 R.1 S450 F1/18

---

While this may look funky, the 2100 control will do the math for you and this should work.