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I have now all the infos I need !

Hello !

Does anyone know how to get the Equilaser EPC-1 flash lamp characteristics and pumping chamber scheme ?

This laser is a part of a TMR 4000 Ho:YAG system from Eclipse Surgical...

... and so I wish you a great success with your project.

Just some more informations : you should perhaps have a special TTL input (on a TTL connector) on your power supply you can use to prevent...

I totally agree with you !

Your point of view is of course the right one.

But it is important to have the exact knowing (like yours) of the physical properties and limits of the "tools" used....

Hello !

I used to make some experiments on ceramic materials with my CO2 laser and I was amazed to see how quickly they can be damaged ! But well, it would be the same with a polycarbonate screen...

Disregard ...

Hello !

Be fully advised of laser safety rules before any use ! Your IR goggles DO NOT protect yourself against a direct beam shot or a too powerfull specular beam.

You MUST use a proper screen...

Hello !

I am using a 100W CO2 laser tube and the fluorescent light (due to nitrogen transitions) is very uniform across the tube even much below the lasing threshold (around 6 mA). No hot spot...

Hi !

The link works again !

So long !

Hello !

You are right, the link is not working ! Perhaps it is just a momentary failure ... I send them an e-mail ([email protected]) just to see what happens.

I keep you advised.

All...

Yes ! You can add http://www.jhlaser.com (Shanghaï) to your laser providers list. They are not providing CNC machines but medical lasers (Nd:YAG, CO2, He-Ne) ; And so they buid their own CO2 laser...

Many thanks for the informations.

I already tried a very simple system that (roughly) works, before to purchase any optical (and expensive !) device.

I used a copper tube that acts as a wave...

Hello !

I got the tubes and power supply directly in Shanghai by their factory so I do not know about the shipping. But they sale tubes and CO2 laser systems around the world so I suppose shipping...

Hello !

The question is : what use for my laser ? 24 h on duty / day or just some minutes from time to time.

That gives the price !

My own experience with Chineese products is very...

Hello !

I am putting in service a new 100 W CO2 laser for ceramic products experiments. The tube is new.

I performed the first tests last week. The power delivered is the one
rated ......

Hello !

For a CO2 laser beam (10.6 micro-m), does anyone know the optical density (OD) per milimeter of standard polycarbonate shield ?

Thank you for any answer !

Hello !

I wish to build my own xy laser cutting table. No problem with the laser and optical components.

The problem is with the table itself. I have two choices : to make my own drawings ......

New !

I cut a Depron 3 mm piece with a 6W RMS CO2 laser (+ lens) very easily (see attached file). Only few smoke.

It would be possible to build a static cutting table with a vertical CO2 beam...

Hello ! A power 808 nm laser pump diode for DPSS laser is perhaps OK ... I never tried that ... but to cut Depron, you need at least 100 w/mm² ... see data sheet and compute !

No, I really think...

In addition :

On the first diagram, the intensity seems to become negative. Of course not ! The automatic scale of the diagram software is the reason of that !

(Message copy)

See attach files

Hello !

I hope these diagrams may help you. My laser is a 10W max power, but I use it
at a lower power (6W RMS).

The laser is powered with a 14.4 kV...

I sent you a message on your e-mail ... I hope the diagrams are not to big ...

Tell me if you received them ...

Thanks !

Hello !

I made some mesurements on my own CO2 laser that answer your question. I need to send you two .bmp diagrams ...

Are you able to give me an e-mail ?

Regards.

Philippe

Hello !

No problem. You need a 16 mm wide plano-convex ZnSe lens with a focal length around 100 mm. Price around 50 USD in China.

For a CO2 laser :

Spot diam (mm) = 0.013xM²xf/D

DOF...

Hello !

If you intend to put such a machine in a classroom, be advised of your government regulations ! These machines are for industrial use (or private !), so there safety rules prohibit them...

I reply to myself !

The only way to drive the beam is with mirrors. And it's a simple way.

Philippe

Hello !

Laser safety is a very important topic ! I cannot give you all the rules in a little message, but you can see them on http://repairfaq.ece.drexel.edu/sam/lasercc2.htm#cc2saf.

You also...

Hello !

I intend to build a 2D CO2 laser cutting machine. I have already a 10W laser and I will buy another 100W tube. I know how to (safely !) use them and I have no problem with optical...