Category Archives: Haas Mill

Haas Screenshot How to Make One

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Category : Haas Mill Haas Turn

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You might not know it but if you put your memory stick into your Haas control then press and hold SHIFT as you press F1 you get a Haas screenshot or a (Haas screen capture) on your memory stick.

Haas Screenshot

It is really useful if you need help because you can save a record of what is on the screen.

With this Haas Screen Capture. You could use it for set up sheets. It will also be useful if you want to create training literature.

If you want to enter a name for your screen capture just input it before doing the above.

I love the fact that Haas are constantly improving their products the machines are so well thought out. They were the first ones to incorporate a coolant hose to clean down the machine.

Extras

I notice now some things do come as extras but they still come well loaded. It’s not like when you buy a car and you find that all the things that really attracted you to it (don’t we just love the toys) are extras.

Haas Screenshot
Range rover with no wheels

Just having a memory stick on a machine is really good. I cant help but think that it seems to be taking so long for machine tool companies to really get to grips with technology.

Sometimes when I am training people who never worked a CNC before I feel embarrassed to say “oh the memory is like the size of a 1980’s calculator”

Haas Screenshot
1970’s Calculator

The editing on some controls (and I won’t name names, as I can’t retire yet) is poor to say the least. Students used to using a PC expect to be able to easily COPY and PASTE bits of programme.

Good luck with that one.

Fanuc Screen Capture

Yes you can do it.

Where’s The UNDO Button?

UNDO (don’t even go there) some do have it. But wouldn’t it be great if you could UNDO things like offset changes. These things are gradually coming in on new controls but I can’t believe how slow it’s all been.

And you thought this articcle was just about taking a Haas Screenshot

Anyway I’m rambling again (only doing it to get the word count up), I will be using this Haas Screen Capture all the time. Typical Haas practical, user friendly. Keep up the good work boys.

Fanuc Screen Shot

Yes Fanuc Does it Too

Go to a screen you would like to capture.

Press and hold the [SHIFT] button for 5 seconds.

The control appears to lock up for about 15 seconds.

Once it frees up an image will be on your memory stick or memory card.

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G82 Drilling Program Example

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Category : Fanuc Mill Haas Mill Mazak Mill

G82 Drilling Program Example

G82 Drilling Program Example, this simple part has four M12 holes drilled countersunk and tapped.

The datum is the centre of the part so the holes positions are.

X55. Y55.
X-55. Y55.
X-55. Y-55.
X55. Y-55.

G82 Drilling Program Example

Here is the CNC code

G82 Drilling Program Example

The machine first moves to X-55. Y-55. and rapids the Z axis to 3mm above the part.

It then rapids the Z axis down to 1mm above the part R1.

The G82 Cycle instructs it to drill a hole 6mm deep (Z-6.) at a feed of 200mm per minute (F200.)

When it gets to depth the P3000 tells it to dwell for 3000 milliseconds which is 3 seconds. No decimal point allowed. (Varies on controls)

When the hole is done it rapids back to the initial point (Z3.) This was in the line

This is because of the G98.

If it were G99 it would return to 1mm above the job (R1.)

See explanation of G98 and G99

Once the cycle is active each time it sees a position it repeats the drilling process.

When the G80 is programmed it no longer drills holes.

Now watch the video to see it all in action.

G82 Drilling Program Example

Haas G82 example

It’s been great fun writing this article for you but to be totally honest i think this cycle is a complete waste of time. Whenever I have put a dwell in a spot drilling cycle it always seems to chatter.

However if you do use this cycle please let me know if you have success with it.

Thanks

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

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G73 Peck Drilling Example (Canned Cycle)

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Category : Fanuc Mill Haas Mill Mazak Mill

G73 Peck Drilling Example

G73 is a peck drilling canned cycle.

This cycle drills holes and breaks up the chips as it goes. It does not fully retract from the hole.

It retracts just enough to break the chips up.

This simple part has four M12 holes drilled countersunk and tapped. The datum is the centre of the part so the holes positions are.

X55. Y55.
X-55. Y55.
X-55. Y-55.
X55. Y-55.

G73 Peck Drilling Example

Here is the CNC code (G73 Peck Drilling Example)

G73 Peck Drilling Example

The machine first moves to X-55. Y-55. and rapids the Z axis to 3mm above the part.

 

G73 Peck Drilling Program Example

It then rapids the Z axis down to 1mm above the part R1.

The G73 Cycle instructs it to drill a hole 17.5mm deep (Z-17.5) at a feed of 200mm per minute (F200.) 

The Q2. tells the machine to drill the hole in 2mm steps. After each step it retracts a small amount to break up the chips from the drilling.

As it drills the depth increases by 2mm each time.

When the hole is done it rapids back to the initial point (Z3.) This was in the line

G73 Peck Drilling Program Example

This is because of the G98.

If it were G99 it would return to 1mm above the job (R1.)

See explanation of G98 and G99

Once the cycle is active each time it sees a position it repeats the drilling process.

When the G80 is programmed it no longer drills holes.

Now watch the video to see it all in action (G73 Peck Drilling Example)

G73 Drilling Example

Haas G73 example

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

 

 

 

How G28 Works. Why two pushes of CYCLE START?

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Category : Fanuc Mill Fanuc Turn Haas Mill Haas Turn

How G28 Works

Every wondered why G28 takes two presses of the CYCLE START Button when you are in single block.

How G28 Works

Be amazed you are about to find out.

One of my pet hates, and at my age you have thousands, is when people say

“Oh I don’t know we’ve always done it”

I just think, well you are stood at this machine for eight hours a day why not find out what’s going on.

How G28 Works

How G28 Works

G28 tells the machine to return to its home position. This is usually a convenient point for a tool change.

The command on a machining centre looks a bit strange.

G28 G91 X0 Y0 Z0

Why G91?

Well G28 means return to your home position via an intermediate point.

So if you programmed G28 X0 Y0 Z0 then your machine would rapid down to the workpiece (probably crash) and then go to it’s home position.

What G28 G91 X0 Y0 Z0 tells the machine is this……

  • The reference point is incrementally zero from where you are.
  • So the machine does not move.
  • Then it goes to it’s home position.
  • Hence the two presses of cycle start.

On a CNC Lathe we use U and W for incremental. Read this post if you don’t know.

So if you programmed G28 U0 W0 your X and Z axis would return to their home position. This being because the reference point is incremental.

If you programmed G28 X0 Z0 you would probably get a collision like below.

Well at least it went home.

First move is to X0 Z0 which is the front of the part. (This is your reference point.)

The machine would then move back to zero return.

G28 is fine on a CNC Lathe but on a CNC Machining Centre you must remember to change back to G90 (Absolute).

My preference is to use G53 to get back to your home position.

Read this article if you never heard of G53.

Please note some older machines don’t have G53. Oh and it is classed as an option!

If you are affected by any of the issues raised in this post or need CNC Training then contact us.

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Letter O Head of Programme

Category : Beginners Fanuc Mill Fanuc Turn Haas Mill Haas Turn

Letter O Head of Programme

There is a quick way of doing most things on computers and CNC Machines

It’s just being bothered to first find out what they are but most importantly force yourself to keep using them until it becomes habit.

To get to the head of your Fanuc Programme type in letter O and press your upper cursor.

Letter O Head of Programme

It beats the shit out of pressing reset which can stop everything if you press it by accident.

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