Category Archives: Useful Stuff

Fanuc OT More Fun Than You Think

Category : Useful Stuff

CNC Lathe with very old Fanuc OT control.

I sometimes think I have the best job in the world apart from a few people like rock stars, pornstars and people who work in chocolate, and beer making facilities.

Fanuc OT

Everyday I get to work with interesting friendly people (apart from that bloke who knocked me out for accidentally deleting all his programmes). There are some very unreasonable people around. It took him less than three weeks to re-programme all the parts.

This week I worked at a company that makes lights n light fittings for posh restaurants and hotels.

Now I have never been allowed in a posh hotel or restaurant so I was amazed at all these fancy lights. The quality of the products these guys produce is absolutely stunning.

I got to train them on one of these.Fanuc OT

Now I know what you are thinking “Lucky Dave, that’s a beauty” but I can see straight through your sarcasm and please don’t keep calling me fuckin Dave, it’s David.

Anybody who reads my articles, and there’s only three of you,will know that I absolutely shit-faced love these old machines.

This one looks a bit shabby I admit but it’s previous user was not so gentle with it. A good service and some re-alignment and it’s back to to the workhorse it was meant to be.

Not to mension excellent training from me.

It’s old, but then so am I so lets not be ageist.

Got to be honest here. I had forgotten some of the little quirks to the old Fanuc OT control.

Dig Deep

Once you get your head around it there really ain’t much it wont do. There are variations on this control and this one didn’t have all the bells and whistles. You know like rigid tapping and macro.

I mean who needs all that complicated shit. I’d much rather keep breaking taps and not be able to parametrically control a CNC programme with the flexibility to make varying sized parts. Not to mention probing and automatic tool measurement. No no no bollocks to that keep it simple.

Joking aside dig deep and make sure you’re using everything it’s got.

I’m a great believer in working with what you have n with a body like mine believe you me you have to.

Anyway let’s get on with it.

MDI On The Fanuc OT

The MDI screen is not like the newer controls where you just write into programme O0000.

You type in commands and it fills in details on the screen.

You have to input each word of code separately, then when they are all on the screen hit cycle start or this green button.

Fanuc OT

Sorry but you are going to have to get used to all the shit pictures because it’s all I have access too.

If you don’t like it there are way more interesting sites than mine. Not about CNC by the way but there are so many good porn sites out there these days.

I mean it bores the arse off me, and I’m the one writing this crap!!

Haas Tip of The Day on Youtube is amazing try that.

Word of Warning in MDI

If you input a position move and a tool change in MDI. It will make the move first then do the tool change.

Wouldn’t recommend it.

This MDI is not like the newer ones where it’s a programme it’s just one page that gets filled in.

It’s OK once you get used to it.

Programme Copy Fanuc OT

Editing is a little bit shit but once you get used to the protocol it’s not too bad. Try to change the way you look at this. I mean use the lower cursor arrow to search.

Fanuc OT

This is because the keys are quite cumbersome so if you can get into the habit of keying in the address, for example G or M, you can find the next G or M.

Or choose something more specific like G71 and then press your lower arrow to search.

I always feel sorry for these guys working in the chip shop where they have this thick polythene membrane over the keypad for the till. It’s pretty random which button they hit.

I paid £40 for fish and chips the other day (mind you the way inflation is going it was probably correct).

Fish and Chips from an English Fish and Chip Shop

I said to the young lad serving me “is this fish cooked” he said “I’m sure it is”. I said “well it’s eaten half my fuckin chips”

Anyway this Fanuc keyboard was a bit like his. Maybe I should work in a chip shop, wonder if you get free chips?

Enough About Chip Shops

If you make yourself  use the search key it will make the whole experience a lot less frustrating.

To copy programmes is long winded but worth the effort, press the extra edit key and then move to start of the bit you want. You then press the first cursor button. Move to the end of the bit you want to copy and press the other cursor button.

More on this.

Programme Zero O0000

You then get to execute this. It’s all then placed into programme O0000.

Go back to your original programme and use the merge key to either merge this programme where the cursor is or add it to the end.

You can also change the programme number O0000 to another number, making a new programme.

When you are copying programmes you can use the ALL key for copying all of the programme.

When you use move or copy you can input a programme number so it does not go to programme O0000

This is not meant to be a full explanation but just to give you some idea of what can be done and get you excited.

More details here

So what the fuck is programme zero? Programme O000 is the programme number that the Fanuc control uses as a sort of clip board. When you use the merge button this programme O0000 is what it merges.

It even has find and replace.

End Of Block

My control had asterisks instead of semi colons for EOB (end of block)

Fanuc OT

This would annoy the shit out of me but it’s not my machine and I really couldn’t justify altering it and putting the users future in jeopardy.

If you don’t like this then just change parameter 10 bit 1

Fanuc OT

Fanuc OT

It really makes no difference it just looks different.

OCD

I often get accused of having OCD. People go around saying “oh it’s OCD”. When you just keep your work area tidy.

No fuck off, I like things tidy I’m a fuckin engineer.

If this is you then stop saying it. If you ever meet someone with real OCD you will be shocked. It’s a terrible condition it’s not just about keeping the knives straight in the bloody cutlery draw.

Rolls Royce 1971

When I worked at Rolls Royce in 1971 the guy who trained me was Ex-RAF and an absolutely amazing guy.

Reg his name was.

Reg knew I had a reputation as an apprentice for having absolutely no interest in work and just dreamt of being a rock star all day. Bit of a prick in those days but Reg didn’t seem to mind that.

This Really Is Me

My early attempt at being Robert Plant

Reg was a clever guy gave me a full sex education and taught me more about good engineering practises, in the six months I was in his care, than I have in my whole career.

He had a more subtle approach to training me. To start with he just used to talk to me and what stories he would tell. This guy was a fighter pilot in the second world war. The stories were amazing and mostly could not be used on this page. Even with my very low editorial standards.

He was talking one day about how much the guys used to swear and how ridiculous it got.

He was home on leave one day and the whole family had lunch together. Grand parents, aunties and uncles about 15 people for dinner.

All was silent as they all started to eat lunch, after they said prayers as they did in those days.

“Pass the fuckin salt” Reg said in a load voice completely forgetting where he was.

I found this story so fumy. There was an embarrassed silence and then everyone chatted on as if they hadn’t heard.

This guy believe it or not had a pet shop in the precinct in Coventry which he ran in his spare time.

He had a pet monkey. He told me how the monkey would sit on his shoulder whilst he served customers. The monkey found it amusing to stick his prick in Reg’s ear when he was serving customers.

I was so charmed and in ore of this guy that before I knew it I was assisting him to build gearboxes for the Nimbus Engine

He taught me basic skills like wire locking and how to correctly use spanners.

Before long I was assembling gear trains. I was really into motorbikes so a lot of the skill was transferable to what I was doing at home.

Fortunately i didn’t have one of these (Norton Jubilee) My mate did and it was an unreliable piece of crap.

The most important thing he taught me was the importance of keeping your work area spotless clean and all your tools neatly in place.

He knew where every spanner rachet and Allen key was and could drop his hand straight on any one without even looking.

If one tool was missing or out of place he would notice immediately. Imagine if you left a spanner inside an engine!

Oh and my workshop is still immaculate as you can see.

Being tidy is pragmatism not obbsessive compulsive dissorder.

OCD I rest my case.

Other Exciting Parameters Fanuc Ot

You might want to fuck with some of the other parameters like these:

Fanuc OT

 

Parameter 40 bit 0 displays programme description in Library

Fanuc OT

Parameter 4 is to protect O9000 series programmes

Fanuc OT

Chamfer and Radii Fanuc OT

This control has the ability to add a radius or chamfer to a programme.

Just programme point to point and then add C or R as an after thought.

You learn something new every day.

My daughter is autistic so everything is taken in a very literal sense. I  witnessed a friend drop straight into this trap. He was explaining how good it was to use a roller to paint furniture. yes, he said, “you learn something new everyday”.

Oh dear methinks.

I knew what was about to happen. “Mmm” my daughter said “what about yesterday?”

He thought she was joking, but no, she wanted to know exactly what he had learnt every day of that week.

When he said “It’s one of those things that people say”. I knew he was digging himself deeper and deeper into the shit.

I decided to pull him out. “It’s just a stupid neurotypical saying. It’s just not true”.

What I Learnt Today Fanuc OT

On this machine you don’t need a comma when you use R and C.

G1 X50. R10. 
Z-20.

When I saw it I thought “mm where the fuck is the comma?”

Turns out there is a parameter to change it. (That’s what I learnt)

Fanuc OT

Don’t get this confused with G2 and G3. All you need with this is to programme the shape without the corner radius or chamfer (point to point) then just stuff in the pesky little C or R afterwards.

Authors Note:

I also learnt that there is no such word as learned. It’s learnt. Should have listened at school. (Smart arses please feel free to give me an English lesson.)

A Hidden Button Fanuc OT

Bet you didn’t know about this button.

Now I can tell you for sure there is nothing good about getting old. No no, it’s definitely the shit end of the chronological stick. It’s fucked up and I don’t like it.

You definitely get more patient with age. Like standing in queues. When I was young after five minutes in a queue I would rather remove my own appendix without anaesthetic than to stay another second.

Nowadays I just change into my slippers (which I have with me at all time in a carrier bag for life) and light up my pipe. Happily waiting for hours to be told “oh you can only do that online love”

People even call you “love” when you are old.

Fanuc OT

Have you ever noticed the No at the bottom of the F key? Anyway, I know the suspense is killing you. Well…. if you are on the offset page or the parameter page, when you press this key you will see No flashing on your screen. You can now input offset or parameter number and it will search for that number when you press input.

Now I know you’re thinking “this twat should find something better to do with his time” and you’re probably right.

The thing is if you force yourself to use all these little shortcuts then overall it will make a real improvement in efficiency. Oh and I’ve been watching you, you really need to up your game. Pissing around with that iphone all day.

It Will Make You More Efficient

Not to mention repetitive strain injury.

I often say to people who I’m training “I just read the manuals that you just can’t be arsed to read” and then charge you for training. They just laugh, mmm.

One More Really Important Thing

Now I know I’m banging on a bit about chip shops today but what the fuck is this thing about having gravy on chips!!!

Fuckin disgusting. Now I know it’s a northern thing and I know you northerners have some strange traditions but frankly this should be outlawed by public health.

 


Programme Copy Fanuc Oi

Category : Useful Stuff

Before we start, Programme Copy Fanuc. I have decided to stop moaning, I’m just sick of the sound of my own voice constantly complaining about just about everything. These days there just seems so much shit going on at any one time that theres always something skulking in the background waiting to piss me off.

Well today it’s not going to happen, today instead of grumbling about how awkward it is to copy a programme on a Fanuc Oi control. I am going to explain how easy it is.

I think sometimes it’s not that something is hard to do it’s just that we can’t be arsed to get out the manual and drudge through the boring shit to find how to do it.

Heres One (I found in the book)

Increase Decrease Scale Oi Graphics

On the graphics screen on the Fanuc Oi control you press P to increase the scale and M to decrease the scale.

I mean that’s bloody obvious isn’t it. (Sorry I said no moaning). Took me a week and a powerful microscope to find that in the thick fat Oi Fanuc manual.

Programme Copy Fanuc

Programme Copy Fanuc

First of all press EX-EDT it’s this little beast

Good luck finding it (sorry no moaning).

Solution to finding Softkeys On a Fanuc Control

Beat the shit out of the fuckin keyboard with two fingers, simultaneously pressing every button, till the screen comes up that you want.

My many years of working on these controls has taught me this.

What Next, Programme Copy Fanuc

Press Copy

Programme Copy Fanuc

Then press ALL

Come on now it’s going great

New mouse for my CAD CAM system

 

Now This Bit I didn’t Know

What I always do here is just press EXEC

The programme will then manifest as programme O0000 and you just change it’s number to the one you want. O3 ALTER you know that kind of thing.

Pay Attention You’re Not At Work Now

If you look closely at the screen shot above you’ll see I’ve input 3. Just type in 3 then press INPUT

It looks like this

 

Now when you press EXEC guess what, it creates a new programme (programme O0003)

So there you have it. My advice as always is to keep using these techniques and shortcuts until they become second nature.

If you have been affected by any of the issues in this article maybe you should get some training from me, call me anytime.

Classroom training or onsite training at your place.

Checkout my five star reviews (it took my mate ages to make them all up)

I know my place looks a bit of a shithole from outside but like the Tardis it’s amazing on the inside.


CNC Tooling Spot Drill Centre Drill

Category : Tooling Useful Stuff

CNC Tooling

Spot Drill Centre Drill Spot The Difference

Now if you already know then:

GET SOME WORK DONE

You don’t need to waste your time reading all this bollocks.

CNC Tooling

Spot The Difference

Now Let’s Talk About Centre Drills

They come in various sizes designated by a BS number.

BS1 to BS6

BS6 being big.

Anyway BS1 is 1/8″ diameter and BS6 weighs in at a massive 5/8″and a government health warning.

CNC Tooling

There is only one reason why you would use a centre drill and that is if you require clearance for a centre.

CNC Tooling

If you have a long part and you wish to support it with a tailstock then you need clearance for the point of the centre.

If you used a spot drill the point would touch before the sides.

CNC Tooling

If the part is going to be ground then it will most likely be held between two centres.

CNC Tooling

 

CNC Tooling

Now the big problem with centre drills is that in order to clear the point of your centre they have to have that little point (pilot) on the end.

And these little bastard break off. Oh and if your turret on your lathe is not aligned properly, you got no chance.

A BS1 centre drill has a pilot that’s just .64mm in diameter!!!!!

As soon as it makes contact you’ll see it wandering aimlessly around like a drunk teenager in Birmingham on a Saturday night.

Carry on now and it will snap off and if your having a shit day it will lodge itself in the part. You’ll need a neutron bomb to get it out.

So let’s move on and stop talking about these annoying little beasts.

Rule Number 1 only use them if you have to.

Rule Number 2 only use them if you really have to.

Rule Number 3 only use them if you really really have to.

CNC Tooling Spot Drills

Now these again come in various sizes a much bigger range from 2mm to 20mm and you get a 120 degree point or a 90 degree point.

B & Q are great for all kinds of DIY products (free add). But whatever you do don’t use the drills for serious engineering.

CNC Tooling

Shelves, building kitchen units, making the misses a Jewelry Box. They are fantastic, but not if you want to be a serious grown up engineer and play with the big boys.

So lets bin all the shitty cheap HSS drills and buy some decent stuff. Oh by the way don’t blame me if your boss says “dream on”

Why Am I Saying This

Well because modern drills are amazing.

They hold accurate size.

Don’t need a spot drill.

Really super fast.

Last longer.

Oh did I mention they are bloody expensive.

Centre Drill

Now with HSS drills you can buy thousands of em for a fiver and still have change to buy Robbie Williams concert tickets.

Authors Note

Please don’t read any of my articles if you like Robbie Williams, it means your a twat. Now Robin Williams, that’s totally different. Don’t you just love “Mrs Doubtfire” my favourite film.

Drills Drills More About Drills

But good quality modern drills are expensive. The good news is they easily pay for themselves. You need to treat them carefully because if they are carbide then they can chip and smash easily. You know in that James Bond movie where he is disarming a nuclear bomb? Well treat them like that and you’ll be just fine.

CNC Tooling

Anyway that’s not what this article is about.

CNC Tooling Centre Drill

A centre drill has a 60 degree point which is not good to start a drill. With a spot drill you can get a 120 degree point which is roughly the same as your drill point so it gives the drill a great start.

The drill won’t wander but if you heed my advice and use a super duper new drill then it will drill perfectly without any spot drill.

Spot Drill Last

I would always  use good quality CNC Tooling.

Use a good quality modern drill and then use a 90 degree point spot drill after to chamfer your holes.

This means you can rapid the spot drill right into the hole and then feed in just a tiny amount to create the chamfer.

Spot Drills The Good Bit

You can deburr with a spot drill. Just program it to go around your shape and put a nice clean chamfer around you part.

CNC Tooling Conclusion Spot Drill Centre Drill

Always use good quality CNC Tooling

Use a centre drill only if you have to.

Make sure your turret is aligned on a CNC Lathe.

Centre drills are for centre locations on long or ground parts.

Centre drills are for grinding between centres

Spot drill can be same angle as drill.

Spot drill after drilling.

Use spot drills to deburr parts.

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

Look no further Contact CNC Training Centre


The Best CNC Control what is it?

Category : Useful Stuff

If you are buying a new machine what is the best CNC control?

You might not have a choice of the control if it’s a Mazak or a Haas.

Given the choice what would you choose.

the best CNC control

Things to Consider (the best CNC control)

  1. Availability of Skill to use it.
  2. Batch size, one off or thousands of parts.
  3. Ease of editing.
  4. Do you want to program on the machine?
  5. Graphics.
  6. Program Restart.
  7. Compatibility with existing controls.
  8. Mobility of labour (who can use it?).
  9. Do you need bells and whistles?

Availability of Skill

Probably the most common CNC Control is Fanuc. Like it or love it, it’s the one we all know.

But is it the the best CNC control? Well, I’ll let you decide.

So when you are trying to get a setter operator or programmer.

If you have a Fanuc control you have plenty of fish in the sea. It’s more or less the industry standard.

So beware if you buy a new machine and the control uses bitcoin and nanotechnology you might be the only dude who knows how to program it.

Siemens controls are really creeping up in the background even Mazaks use them now. There is still a massive shortage of people with Siemens programming skills. Maybe you should talk to us.

How Many Parts Do You Make?

If you are in the business of making one offs or small batches of parts, then you may think it will be more profitable for you to program at the machine.

Mazatrol is excellent for this. When it comes to turning, from drawing to bubble wrap, it really takes some beating.

Hurco is also really good for one offs and small batches. Oh and both of these controls usually have an ISO option meaning you can run Fanuc type programs if you want to.

Oh and the new Hurcos are fully Fanuc compatible

Read the small print on your final machine spec and always check what options are on your machine control.

Fanuc controls are on thousands of machines and every one is different. Things like Manual Guide i are options and sometimes very expensive to install as an add on.

It’s like getting a car and finding you got the one that doesn’t do 0-60 in 5 seconds.

Don’t forget you can always get yourself a CAD CAM system for a very reasonable price these days. This will do everything these controls can do and an awful lot more.

the best CNC control

the best CNC control

Things like proper collision detection. It’s way cheaper and ethical than framing the apprentice and getting him another written warning.

You can get entry level CAD CAM systems for around £2500 pounds (that’s about $1000.000 since we decided to leave the EU). Oops, sorry.

Only joking.

Anyway when buying a new machine it’s not much money to sneak under the radar.

Editing

Do you need to do loads of editing? I have to say Haas controls are brilliant for editing (you even get an undo button along with loads of other clever shit).

The handwheel can wizz you through the program at breakneck speed unique to Haas I think.

Heidenhain has the ability to jump to sections of program really quickly. One of my favorite features Read this.

Yes and make sure your programs are easy to read. Loads of comments and spaced out. This makes them easier to navigate and edit. Read this.

Siemens controls are also very easy to edit COPY/ PASTE an absolute doddle and its really easy to move stuff around. (Siemens 840D Sinumerik)

On your Heidenhain control use this button maybe just to leave gaps and add the odd comment.the best CNC control

Use the colon (;)  to add a comment.

the best CNC control

New Fanuc controls are much better than the old ones for editing. You needed a PHD in calligraphy just to work out how to copy and paste.

Fanuc Tips

If you have Manual Guide then use it to edit. There’s loads more functionality. You even get an undo button.

Even if you don’t use it to program swap over to edit, please.

Check out PL. EDTthe best CNC control

This button lets you edit two or more pages at once so it’s real easy to copy n paste from one program to the other

the best CNC control

Don’t forget to pressthe best CNC control

when your done or you will be punished by being locked into that screen until home time.

Oh and don’t forget the calculator button on Fanuc too.

the best CNC control

Read this

Mazak Tip

When running ISO programs on a Mazak control there’s a real nifty edit function. You know that feeling when you think “oh shit I know I should have changed that tool number”.

Well you can stop the program alter it and just carry on. You can’t alter anything before your current position but you can alter anything after. Like that looming feedrate you know you meant to alter.

(WARNING ONLY WORKS IN ISO)

Programming On The Machine

Just one thing to say about this.

It’s expensive.

It’s great for bored operators, they love it. Yes “that’s what background edit is for, you dick” I hear you say. (You really should learn to be more articulate).

Mmm yes well that’s not without its problems as we all know.

This will obviously work for some organizations and not others. But, be sure to check carefully that production and quality are not adversely affected when you program at the machine.

Just saying.

Graphics

Well most machines have em. But usually they are a pile of shite.

Joking aside (and you know I love to joke) they are really useful for checking programs for errors but mostly not collisions.

So long as your not expecting to get the Jeremy Kyle Show with subtitles you’ll be just fine.

For typos and little coding errors they are brilliant and save loads of stress and panic when you decide to run your code for real.

Program Restart what’s the best CNC control?

Don’t get me started on this one. Well ok here goes.

Even the best CNC controls don’t always have good program restart.

Haas (Brilliant)

Fanuc mmmmmm (It’s an option) read this

Mazak not bad.

Heidenhain good.

Semens good on newer machines old controls with care.

Mixed Bag Usually Not That Good

Anyway it’s a bit of a mixed bag but on a machining centre where you almost definitely will need it. I suggest you check it out first.

Oh and if you already have it then learn to bloody use it.

Clones

 

You see it on LinkedIn all the time, such and such a company has just bought their 96th ????? machine.

Well there’s a reason for that, and I know our machine tool friends would like to think it’s loyalty to their amazing products but ……

Their are some very pragmatic reasons why you stick with the same boring old brand of machine tool.

If every machine has  a different control you won’t get much mobility of labor because every machinist will be scared of the dark evil beast next to him.

And when your trying to recruit… well the wish list will be like War and Peace

If you have bought loads of new machines from the same company when you call the service department you got way more clout (don’t tell anyone I said that).

Don’t forget you can run ISO programs on most Heidenhain controls with a few mods.

Haas, Fanuc, Mazak (ISO) and Yasnac are almost 100% compatible with one another.

So it’s worth looking at how compatible the new control is with your old stuff.

Bells and Whistles

Do you need all this crap?

Can it contact your misses and ask her to get the takeaway ordered and put some Vodka in the freezer?

Can it check your credit rating?

So if you are programming offline with a CAD CAM system what do you need?

I reckon you need good editing, good program restart, good graphics.

If you are programming everything using CAD CAM it’s more about hardware than software.

Don’t forget the hardware is the expensive bit (the metal) computers and software are cheap but if you want a machine that can drill and tap 500 holes in one side of a railway carriage then you need some big bucks.

Verdict So What’s the Best CNC Control?

Sorry there ain’t one. As usual it’s subjective.

The main points to consider if you want the best CNC control:

  • Do you need it to check your lottery numbers?
  • Batch quantities will it run for hours untouched?
  • Do you want to program on the machine and is it practical and cost effective to do so?
  • Can you find anyone to program set and operate it?
  • What skill sets do you already have? Maybe you need to stick with what you have?

Siemens 840D

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

Look no further Contact CNC Training Centre


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