Category Archives: Fanuc

G92 Threading Single Line Method

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G92 threading Cycle is something that concerns me. It’s sadly neglected. Now I know you’re probably saying “no one uses that old shit anymore”

Well you could be wrong.

G92 Threading works exactly the same as G76 except you need to programme every pass. This would be a pain in the arse but hear me out.

The Haas G76 cycle does not have any facility for a spring pass. This is where you add extra cuts at the end of a threading cycle to take out any metal left from the tool pushing off.

On a Fanuc control you can put these extra spring passes in as part of the G76 cycle.

Read this if you need to know more.

If you want this on your Haas control or an old Fanuc control then you can do this.

G76 X16.93 Z-25. K1.534 D.485 F2.5

G92 X16.93 Z-25.
X16.93
X16.93

Just add the G92 after your G76 cycle and whatever X figure you want to go to.

The G92 is modal so you will need a G0 move to cancel it. The code above would give you three spring passes.

Here is a load more interesting stuff.

I hope you have enjoyed reading this article.

Thanks for watching and reading

If you have been affected by any of the issues in this post or need CNC Counselling then contact me.

Siemens 828 840 Sinumerik Training

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How To Format a Data Card on a Fanuc Control

Format a Data Card on a Fanuc Control yes that’s what were going to do. Now first of all I have a confession to make.

People often say to me how nice it is of me to write all these articles helping people with the shit they can’t do. Well sorry it’s not true actually I’m just a selfish bastard just like all the rest of you.

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30 five star ratings on Google (just saying)

 

My only reason is that I have and always have had the memory of a goldfish. If you have ever had a goldfish and tried to train it (which I once did). I read books on it like “How to Train Your Goldfish in 3 Easy Steps”, for which I got a refund.

 

 

Anyway I digress. The reason you can’t train them is, not least of all because you can’t keep them out of the water too long, but they don’t remember a word you say. Fuck all, Jack shit.

So the minute they learn a nice trick they immediately forget it. It doesn’t bother them because they just forget that it bothered them.

Sorry no more about Goldfish.

Anyway its really easy to Format a Data Card on a Fanuc Control. You just hold in these two babies while switching it on.

Oh and make sure you have data card selected in your parameters.

Format a Data Card on a Fanuc Control

This is me doing it. Yes that’s my gnarled up old hand.

“Read More”

Cutting Feed-Rate 0% Fanuc Parameter 1401

Messing With Parameters Can Be Fatal!!!!!

Unlock Programs Fanuc Parameter, first of all you’ll need to go to the setting screen and change the parameter write box to a 1.

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30 five star ratings on Google (just saying)

 

Cutting Feed-Rate 0% No Movement

When you set you feed-rate override to 0% the machine will not move. Some operators like to use this when proving out a program

All you need to do is make Bit 4 of parameter 1401 into a 1 and the machine will not move even in rapid.

Bits n Bobs

When counting the bits in parameters you count from right to left so the first one on the right is bit 0 or sometimes known as #0

Parameters You may Need to Change

 

1300 Stops over travel alarm

1401 Cutting Feed-Rate 0% stops movement of machine

3101 Clear Screen

3203 Clear MDI Screen

3204 Unlock Program 9000 to 9999 and 8000 to 8999 to Edit

3291 Wear Offset requires Key to Adjust

3401 Calculator Type Decimal Point or Integer

3402 G Codes that are Active When The machine is Turned On

5003 Retain Geometry when you Press Reset

6005 Allows the Use of Local Subroutines (Newer Control)

6050-6059  Allows you to Call a 9000 series Program with a G Code

6080-6089 Allows you to Call a 9000 series Program with An M Code

8134 3453 allows you to use ,R and ,C (Rads and Chamfers)

That’s it away you go.

Oh just one other thing before you go off and cripple your machine forever.

Do yourself a favour take a picture of the screen before you change a parameter. If you aint got a camera then you must have a piece of paper.

Even better back everything up.

Thanks

If you have been affected by any of the issues in this post or need CNC Counselling then contact me.

If you want to learn to program CNC Milling Machines

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Fanuc G81

Category : Fanuc Haas


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