08 – Let’s Try the IMPOSSIBLE (03:54)

The Fiber Laser Learning Lab Series with Russ Sadler

In this Series, Lotus Laser have lent Russ a MOPA 20 watt fiber laser to “play with”. Although Russ has a moderate understanding of laser technology (his words) and how constant power glass tube systems work, pulsing fiber laser marking machines are shrouded in a deeper mystery than the glass tube machines. In this session, Russ attempts the seemingly impossible task of fiber laser marking wood.

They have been designed for high speed marking and the technology has been well tried and proven. There are limited “tricks” that the pulsing laser technology can perform. You enter predefined parameters for each marking “trick” you wish the machine to deliver , then stand back in amazement. Most correspondents tell Russ that they have bought their machine direct from China and received a machine and EZCAD software, preloaded with a few default parameters. No other instructions beyond the EZCAD manual are forthcoming.

Russ states “I am neither a teacher or expert in this field so you join me in my learning adventure with the warning that I have a simple but inquisitive mind and will probably make mistakes on my way to discovering the truth. I WILL oversimplify and maybe distort the scientific detail in my quest to build a simple picture of why and how this technology works. I am not trying to reverse engineer anything, just to break through the seemingly impenetrable ‘techno cotton wool’ that surrounds this amazing piece of science.”

Contents

One of the common beliefs surrounding fiber laser marking, is that it does not interact / mark organic materials. In this video, Russ puts this theory to the test.

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Fiber Laser Marking Wood
Fiber Laser Marking Wood

External Resource Links

Lotus Laser

MOPA 20 watt fiber laser

EZCAD

Transcript for Let’s Try the IMPOSSIBLE – Fiber Laser Marking Wood

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0:00welcome to another fiber laser learning

0:02lab today we’re going to do something

0:07which well it might well turn me into

0:13one of those no I’m a very modest person

0:18but I keep telling myself I’m brilliant

0:22my wife tells me I’m delusionary but hey

0:26we have a difference of opinion today I

0:30want to try and prove it to you

0:31hey that are not delusionary although I

0:36am going to try and do something that

0:37I’m told is impossible I’m going to use

0:39the fiber laser to mark this piece of

0:41organic material would just ordinary

0:44light weight a popular plywood this is

0:47just a little diversion because it’s not

0:50as much fun as I was trying when as when

0:51I was trying to understand to reengineer

0:53the co2 laser so I need to keep my

0:55little gray cells active and I also need

0:58to keep them nourished as well so let’s

1:01start off by verifying what everybody

1:04tells me

1:05I just turn myself into a Hollywood star

1:08and I’ll press the button

1:16a very go it’s working nicely and it’s

1:18doing nothing

1:20Paul I know it’s going right through

1:21that piece of wood and burning the table

1:23underneath so let’s stop it

1:25let me just make a few modest adjustment

1:28to parameters

1:29[Applause]

1:31and we press the start button and go

1:33again

1:49[Applause]

Transcript for Let’s Try the IMPOSSIBLE – Fiber Laser Marking Wood (Cont…)

2:08[Applause]

2:20okay know that the extraction fan has

2:23died down yes I can I can hear the

2:26applause I’m actually taking a bow thank

2:29you very much indeed for my next

2:31demonstration of brilliance I’m going to

2:33use a piece of MDF so I’m now going to

2:37put in another set of modestly brilliant

2:39parameters

3:22now I’ll leave you to make up your own

3:26mind delusion Astellas unist

3:31genius or legend in my own lifetime

3:38Matic objects that not suffer well I

3:41will catch up with you in the next

3:42session where we will try and be a

3:43little bit more serious so thanks for

3:46your time and sorry this is quite a

3:48short one but then again you can do

3:52quite a lot with short ones

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