[avccrml]

need help with the simplest way to understand g76

[John3]

Same here.

'Have never used it, I've got threading jobs coming up for both Fanuc 5T and 0T. I think the command is different between these two controllers? (one block vrs. two block format)

-John3

[dcrace]

G0X__Z__(approach Point
G76P_Q_R_
G76X_Z_R_P_Q_F_

First G76 Line Info
G76 P010060 Q00500 R.001 (finish Passes)
G76 P010060 Q00500 R.001 (chamfer Amount At End Of Thread)
G76 P010060 Q00500 R.001 (tool Tip Angle)
G76 P010060 Q0050 R.001 (minimum Depth Of Cut - Radial Value)
G76 P010060 Q0050 R.001 (finishing Pass Depth)

Second G76 Line Info
G76 X Z R P Q F (minor Dia Of Male)(major Dia Of Female)
G76 X Z R P Q F (end Point Z)
G76 X Z R P Q F (radial Diff. Of Tapered Thread)
G76 X Z R P Q F (height Of Thread - Radial Value)
G76 X Z R P Q F (first Depth Of Cut - Radial Value)
G76 X Z R P Q F (feedrate / Pitch)
***R Value Can Be Omitted If Cutting A Straight Thread***

EXAMPLE CODE FOR 1/2-13 THREAD, WOULD BE AS FOLLOWS:
(TURN ON SPINDLE, CALL UP TOOL, TURN ON COOLANT HERE)
G0X.6Z.2
G76P020060Q0050R.0005
G76G76X.404Z1.0P0100Q0472F.0769

This is part of a "cheat sheet" of lathe canned cycles I made up to help train new setup people. If anyone is interested, I can e-mail it to you in excel format.

[jrotruck]

I would like a copy of g76 cycle. My email addres is as follows:
[email protected]

[avccrml]

Thanks for the help it was usefull!!!!!!

[tobyaxis]

I would like a copy of g76 cycle. My email addres is as follows:
[email protected]

LOL, you can Copy and Paste this by selecting the Text with your mouse then Hit Control "C"> Open Note Pad Hit Control V.

Then Save it as what ever you want.

Cheers!!!!

[ledaegypt]

PLEASE SEND ME COPY OF G76 CYCLE
MY E.MAIL [email protected]
THANKS

[tobyaxis]

Read Post #6. You can Copy and Paste to Note Pad.

[John3]

Toby's email address is ....@....... send him a copy too!

He may want your file when he finds out that notepad doesn't save in excel format.....
B
Sorry Toby, I just couldn't resist..... I was always told " John, its better that you be a smartass than a dumbass.

-John

[tobyaxis]

Toby's email address is ....@....... send him a copy too!

He may want your file when he finds out that notepad doesn't save in excel format.....
B
Sorry Toby, I just couldn't resist..... I was always told " John, its better that you be a smartass than a dumbass.

-John

I have to agree with you I use Note Pad for everything LOL. I guess you could say it is "Force of Habit"

Not to mention I don't like to wait LOL

[jrotruck]

I'm new on this website. I'm not sure how to read any reply (What to click to see them) and how to reply to one. Hope some will see this and give me some advice!
Thanks,
Jack

Toby's email address is ....@....... send him a copy too!

He may want your file when he finds out that notepad doesn't save in excel format.....
B
Sorry Toby, I just couldn't resist..... I was always told " John, its better that you be a smartass than a dumbass.

-John

[John3]

Hey Jack,

Welcome to the CNCzone, your posting looks fine to me.....

John

[Bhack]

dcrace, you're a lifesaver! For the life of me I couldn't figure out what they wanted for this cycle from the programming manual. Thanks for explaining it!

I copied and pasted it into wordpad, and then printed it out, it's going to stay with my programming manual!

TY!

[rapidtraverse]

Hi dgrace,
I sure would appreciat a copy of your cheet sheet.

my email is [email protected]

[Pressfit]

I would try the one line format like I use on a 21T. It accepts both, but one line is faster to input and, as normal, successive spring passes or too shallow of passes usually results in chatter forming on long slender deep threads, especially.

Example for 3/4-10 x 12" UNC 60deg. threads:

{G76 X.6201 Z-12.0 K.06495 P2 I.003 D350 F.1;}

X= minor or root of thread determined by double depth subtracted from the major dia.

K= 1/2 double depth of thread (the radius value).

P= Cutting style. P2 alternates cuts to both sides of the thread. Leave P out and the machine defaults to P1 automatically...cutting in one direction that is.

I= taper move starts .003 larger at beginning of thread and tapers down to final X value in the back. Often messes people up while programming at machine because it's opposite of what you might think. To compensate for thread PD variance depending on machining conditions.

D= depth of first pass. Value in tenths... .035"

A= Angle of thread. Which I never use because the geometry relationships of X,K and F must be correct in the first place.

[stmeng]

I would like to have a copy.
thankyou very much.
[email protected]

[froya]

Can you send me the Excel file ?

my email adress is: [email protected]

[abashkel]

hi, would love a copy of your canned cycle for idiots email please.....address is [email protected]

many thanks

[Bill Johns]

Okay if there is a minimum depth of cut, what then is the maximum depth of cut?????

[clayman]

I would really be interested in your cheat sheet. [email protected]