Author Archives: David

Haas VF3

This week I got to train two people on a Haas VF3, and what a delight it was. This machine was old I mean 1996 but still a great functional machine tool.

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I like to see myself in a similar way, really old but still functioning, well at least as I write.

Haas VF3

It took me back to when I first set up my business of training people on CNC machines. My first two victims were at Armitage Shanks in good old Wolverhampton.

1996 was the year I started out on my own CNC Training and these were the first machines I trained on. I did so many I got pissed off with the sound of my own voice (which I rarely do).
Because all the machines were the same I was saying the same things and quoting the same tired old anecdotes day after day.
Fortunately, I went on to train on all the well-known CNC machines like Mazak, Mori Seiki, Matsuura, Bridgeport to name a few. Quite a lot of the not so well-known ones like Maho, seen below.

Haas VF3

The machine above has a Phillips control and they were the absolute dogs’ bollocks. It even had rigid tapping. You could hit feed-hold while it was tapping and you got the option to reverse the tap out! Training people on these was an absolute delight.

Don’t forget we’re talking mid 80s here.

Shut up David this sounds like a big plug for the CNC Training Centre, or maybe it is.

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There is pub by us and on the sign, it says “The Home of the Roast”.

You have to queue up to get your food and a young lad carves the meat in front of you. If he don’t like the look of you, which obviously with me he didn’t, you get two or three slices of turkey, so wafer thin, you can see the pattern on the fuckin plate underneath.

Now I don’t want to knock the people of Nuneaton, being as most of my family live there, but honestly there are some greedy bastards about.

After you get your meat and a few accoutrements you follow a long line of people adding cabbage and peas and all sorts of vegetables and potatoes to their plates. This bloke in front of me was scooping so much on to his plate it was flowing over. It was like a fuckin bowler hat as my late father would say, sans expletive.

In those days you didn’t swear in front of ladies, unless of course it was their turn.

I was just thinking “did you like not eat for a fuckin week?” You can imagine his kids at school saying to the teacher “oh, we’re not eating at our house this week miss”. The teacher then asks if this is some precursor to a religious festival or some such thing.

“Oh no miss, we’re booked in at the carvery for Sunday lunch” she gives them a knowing nod.

Anyway, I looked at this blokes plate with utter middle class disgust and vowed never to go there again.

My mate was about three people in front of this bloke and to my amazement my mate’s plate was so full of food, it made his look like he’d paid for the children’s menu.

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Haas Training, Milling, Turning

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CNC Training Call David: 07834 858 407

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Haas Training
Haas products are constantly improving and developing. I love working with Haas because they actually listen to customers.

Every company claims to do this. We all know that some of the software and machines we use everyday have annoying faults that just never seem to be picked up on by the designers.

Haas Training
Anyway you all know I get pissed off about this if you ever read anything I write. Here is an example.

Did you ever work on a machine with a random tool-changer?

Haas Training

This is a CNC Milling machine that gets the tool out of the spindle and puts it back into the nearest pocket. Could be a Fanuc control Mazak control, Heidenhain. So when you look round the back of the machine at the pockets, the pocket numbers bear no resemblance to the actual tool numbers.

Anyway you go round the back of the machine and you see a tool you want. An M10 tap maybe. I want that M10 tap so I have to go all through my tool lists or whatever to find what tool number it is.

I hope you get me so far. So I find there is an M10 tap called T06 and I call it to the spindle. Oh dear there are two M10 taps and I got the wrong one. In real life I would probably say bollocks but I am trying to make these articles more classy by reducing the profanities.

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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.

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Siemens End Point and Radius Arc

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