Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Gas Lasers



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 07-12-2010, 12:18 PM #17
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18095
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18095
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

Pretty cool project!

Just something i'm curious about: Why does this laser require the gas to be refreshed? As I understand most CO2 laser units are sealed, and only require water flow for cooling.


Benm is online now   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 07-12-2010, 12:18 PM #18
roddenberry's Avatar
Class 2 Laser
 
Join Date: Jun 2009
Location: Montreal
Posts: 365
Rep Power: 20
roddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud of
roddenberry roddenberry is offline
Class 2 Laser
roddenberry's Avatar
 
Join Date: Jun 2009
Location: Montreal
Posts: 365
Rep Power: 20
roddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud of
Default Re: Successful DIY CO2 laser, made from scratch!

Simply wonderful. This is true DYI, just like those awesome homemade nitrogen lasers... I'd love to have the time to work on one of these projects one day!

Robert
roddenberry is offline   Reply With Quote
Old 07-12-2010, 04:32 PM #19
Experimentonomen's Avatar
Class 1M Laser
 
Join Date: Dec 2009
Location: Sweden
Posts: 118
Rep Power: 12
Experimentonomen is just really niceExperimentonomen is just really niceExperimentonomen is just really niceExperimentonomen is just really niceExperimentonomen is just really nice
Send a message via ICQ to Experimentonomen Send a message via AIM to Experimentonomen Send a message via MSN to Experimentonomen Send a message via Skype™ to Experimentonomen
Experimentonomen Experimentonomen is offline
Class 1M Laser
Experimentonomen's Avatar
 
Join Date: Dec 2009
Location: Sweden
Posts: 118
Rep Power: 12
Experimentonomen is just really niceExperimentonomen is just really niceExperimentonomen is just really niceExperimentonomen is just really niceExperimentonomen is just really nice
Send a message via ICQ to Experimentonomen Send a message via AIM to Experimentonomen Send a message via MSN to Experimentonomen Send a message via Skype™ to Experimentonomen
Default Re: Successful DIY CO2 laser, made from scratch!

Coooool! I only know one other dude who made a co2 laser, sam g on the laserfaq.
__________________
My lasers:

Some red pointer/led flashlamp combo, unknown power, 635-650nm red.
A Spectra Physics model: 161B Argon Ion laser, around 15mW 488nm cyan.
Spectra Physics Model: 105-2 HeNe laser, rated 5mW at 632.8nm
Experimentonomen is offline   Reply With Quote
Old 07-12-2010, 05:28 PM #20
Gryphon's Avatar
Class 3R Laser
 
Join Date: May 2009
Location: Panama City, Florida
Posts: 1,838
Rep Power: 182
Gryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond repute
Gryphon Gryphon is offline
Class 3R Laser
Gryphon's Avatar
 
Join Date: May 2009
Location: Panama City, Florida
Posts: 1,838
Rep Power: 182
Gryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

Awesome, now thats a DIY laser!
__________________
I see................wait, what now?

(3x) 405nm
(6x) 445nm
(4x) 532nm
(1x) 543nm
(1x) 632.8nm
(1x) 635nm
(3x) 660nm
SSY-1 Laser
Gryphon is offline   Reply With Quote
Old 07-13-2010, 09:46 AM #21
millirad's Avatar
Class 3B Laser
 
Join Date: Apr 2009
Location: No. California
Posts: 2,576
Rep Power: 297
millirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond repute
millirad millirad is offline
Class 3B Laser
millirad's Avatar
 
Join Date: Apr 2009
Location: No. California
Posts: 2,576
Rep Power: 297
millirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

Enjoyed that CO2 laser very much! Last year I posted your youtube video showing the blue coumarin dye laser. Everyone really enjoyed that. .................................

YouTube - Homemade dye laser using Coumarin
__________________
Greenie - 100mw in diy aluminum host
650nm - 260mw in MXDL host with brass heatsink
650nm - 325mw in stainless Raygun host. The dot is so bright it's
PINK/ORANGE!
Thanks Jay! Thanks Drew! Thanks Larry! Thanks Glenn! Thanks Dave!

Pink - 500mW (white w/red , ok not till later)
Please don't dazzle aircraft! You wouldn't hit someone in the face normally would you?
Home of the stainless RAYGUN !
millirad is offline   Reply With Quote
Old 07-13-2010, 12:12 PM #22
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,727
Rep Power: 40861
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,727
Rep Power: 40861
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

I can see the time and tinkering involved with your
DIY CO2 Laser build...
Nicely done...
You have my attention...

Do You have shares in JB Weld...

Jerry
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner
lasersbee is offline   Reply With Quote
Old 07-13-2010, 12:23 PM #23
jarrod694's Avatar
Class 1 Laser
 
Join Date: Nov 2009
Posts: 70
Rep Power: 20
jarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud of
jarrod694 jarrod694 is offline
Class 1 Laser
jarrod694's Avatar
 
Join Date: Nov 2009
Posts: 70
Rep Power: 20
jarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud ofjarrod694 has much to be proud of
Default Re: Successful DIY CO2 laser, made from scratch!

Quote:
Originally Posted by Benm View Post
Pretty cool project!

Just something i'm curious about: Why does this laser require the gas to be refreshed? As I understand most CO2 laser units are sealed, and only require water flow for cooling.
In theory, it shouldn't. However, a homemade laser leaves much to be desired when compared to the 'real' thing. Gas mix is 'less than optimal'. Cooling is not good enough (notice that my cooling jacket doesn't even extend to the electrodes - for obvious reasons). And most important of all, no system I have made is totally leak free! So if I just sealed my tube off, it would probably be back up to air the very next day. It's seriously hard to make a perfect, leak-free system. 'Real' lasers don't use epoxy the way I am doing. I don't know what they do - I guess the glass is fused directly to the mirrors (Mike - any idea?).

Thanks -
Jarrod
jarrod694 is offline   Reply With Quote
Old 07-13-2010, 12:29 PM #24
Pontiacg5's Avatar
Class 3B Laser
 
Join Date: Dec 2007
Location: Ottawa, Kansas
Posts: 2,524
Rep Power: 121
Pontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond repute
Pontiacg5 Pontiacg5 is offline
Class 3B Laser
Pontiacg5's Avatar
 
Join Date: Dec 2007
Location: Ottawa, Kansas
Posts: 2,524
Rep Power: 121
Pontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond reputePontiacg5 has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

In a tube the glass is sealed everywhere. It goes around the mirrors, which need it the most, and through the arc tube in the middle.

You can sort of see how it works here, the big "bubble" never fills with water.

Pontiacg5 is offline   Reply With Quote
Old 07-13-2010, 05:38 PM #25
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

Quote:
Originally Posted by Benm View Post
Why does this laser require the gas to be refreshed?
It's mostly because of the CO that is created during the lasing process that poisons the lasing process. Sealed tubes have a catalyst in the mix, and the DC current circulates the gas enough so that the catalyst has a chance to work. That spiral tubing helps lengthen the time the catalyst can do it's thing.

I've illustrated the path the gas takes on that sealed tube. Mister Jarrod's tube has no such recirculation built in and probably no catalyst. I can't remember what the catalyst actually is though. The FAQ would know.

Attached Thumbnails
Successful DIY CO2 laser, made from scratch!-untitled.jpg  
__________________
A problem well stated is a problem half solved.

Last edited by Cyparagon; 07-13-2010 at 05:51 PM.
Cyparagon is online now   Reply With Quote
Old 07-13-2010, 08:35 PM #26
plexus's Avatar
Class 2 Laser
 
Join Date: Dec 2007
Location: toronto, ontario, canada
Posts: 442
Rep Power: 60
plexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond repute
plexus plexus is offline
Class 2 Laser
plexus's Avatar
 
Join Date: Dec 2007
Location: toronto, ontario, canada
Posts: 442
Rep Power: 60
plexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond reputeplexus has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

Quote:
Originally Posted by Cyparagon View Post
It's mostly because of the CO that is created during the lasing process that poisons the lasing process. Sealed tubes have a catalyst in the mix, and the DC current circulates the gas enough so that the catalyst has a chance to work. That spiral tubing helps lengthen the time the catalyst can do it's thing.

I've illustrated the path the gas takes on that sealed tube. Mister Jarrod's tube has no such recirculation built in and probably no catalyst. I can't remember what the catalyst actually is though. The FAQ would know.

The glasswork in a water cooled laser is really the key to a stable robust system. Getting proper seals and cooling. I've seen large CO2 lasers with platinum electrodes in them, not the main cathode/anode, but along the tube which i always assumed was part of the catalyst to keep the gas mixture fresh. Large CO2 lasers often have to be re-gassed anyway. Maybe more moderns designs have solved this problem?

Your DIY laser is awesome and very inspiring. I am amazed that you are using CO2 generated from sodium carbonate and acetic acid. The impurities in the gas mixture might account for power loss.

You can get good quality CO2, N and He from a welding supply store. With a well calibrated mixture and good quality gasses your laser should really perform! However you might find more weaknesses as the power is increased around cooling and the mirrors.

Very cool and thanks for sharing.
plexus is offline   Reply With Quote
Old 07-14-2010, 01:47 AM #27
Gryphon's Avatar
Class 3R Laser
 
Join Date: May 2009
Location: Panama City, Florida
Posts: 1,838
Rep Power: 182
Gryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond repute
Gryphon Gryphon is offline
Class 3R Laser
Gryphon's Avatar
 
Join Date: May 2009
Location: Panama City, Florida
Posts: 1,838
Rep Power: 182
Gryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond reputeGryphon has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

Interesting, i didn't know that as the laser operates the CO2 is broken down to CO,
keep your work area ventilated Jarrod, you don't want that in your blood stream
__________________
I see................wait, what now?

(3x) 405nm
(6x) 445nm
(4x) 532nm
(1x) 543nm
(1x) 632.8nm
(1x) 635nm
(3x) 660nm
SSY-1 Laser

Last edited by Gryphon; 07-14-2010 at 01:51 AM.
Gryphon is offline   Reply With Quote
Old 07-14-2010, 01:58 AM #28
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,184
Rep Power: 4058
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Hemlock_Mike Hemlock_Mike is online now
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,184
Rep Power: 4058
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

Jarrod --
Your copper electrodes also contribute to contamination so the flowing gas system makes it work. My tube had side mounted neon sign electrodes with gettering material. That kept the electron flow away from the mirrors and mounts.
If you want a 1" salt crystal, PM me an address.

HMike

That article by C.L. Strong was my bible for the CO2 35 years ago. That was when that SA magazine wasn't so PC.
__________________
It's a dog's life

Last edited by Hemlock_Mike; 07-14-2010 at 02:23 AM.
Hemlock_Mike is online now   Reply With Quote
Old 07-14-2010, 04:15 AM #29
Class 2M Laser
 
Join Date: Feb 2008
Posts: 731
Rep Power: 26
heruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud of
heruursciences heruursciences is offline
Class 2M Laser
 
Join Date: Feb 2008
Posts: 731
Rep Power: 26
heruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud of
Default Re: Successful DIY CO2 laser, made from scratch!

VERY NICE WORK!!!!! Wow this laser reminds me of the PVC piple laser i built years ago as part of a science fair project in high school. It had the alignment mechanism almost identical to the one you used. My laser used a tube from a quartz heating lamp instead of the neon tube though, and had a PVC pipe cooling jacket. It used an old freon compressor from a car and a grinder motor to make a nice <2 torr vacuum pump. 110V Fridge and AC compressors work but they tend to burn up since the freon is used to cool the motor too.

The gas source was co2 from dry ice, nitrogen from a welding bottle, and helium from a party balloon tank. The hardest parts to find IMHO were the needle valves and the mirrors.

The co2 tubes that are sealed have a small amount of water vapor, free oxygen and some xenon added, this is why their discharge is whitish compared to the purple pink of flowing tubes. Some expensive tubes such as Coherent's have in addition a gold based catalyst that is nano gold on a substrate of zicronium silver aluminum oxide. This same catalyst is applied to the inside of synrad laser tubes too.
heruursciences is offline   Reply With Quote
Old 07-14-2010, 10:59 AM #30
millirad's Avatar
Class 3B Laser
 
Join Date: Apr 2009
Location: No. California
Posts: 2,576
Rep Power: 297
millirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond repute
millirad millirad is offline
Class 3B Laser
millirad's Avatar
 
Join Date: Apr 2009
Location: No. California
Posts: 2,576
Rep Power: 297
millirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

^ Good source for needle valves are the surplus parts stores in the Silicon Valley area. They have a lot of bargain basement used semiconductor manufacturing equipment. I spent a lot of time at Intel corp. adjusting gas flows for various processing equipment. Some of it was what is commonly known as world war one nerve gas. We had the Telos gas monitoring stations that would set off an evacuation alarm if there was a gas leak. I "smelled" nerve gas once and the odor was like burned matches and dead fish. Phosphine and Phosporous oxy-chloride(POCL), as well as Arsine and even some Tungsten Hexafluoride(fluorine is nasty). Aaaah the smell of napalm in the morning. ;-) Later on OSHA started to enforce better scrubbers and then we rarely got a whiff. A fellow employee fell to the floor and his legs wouldn't work for half an hour when a stainless line containing Phosphine was severed by mistake. Good times! NOT
__________________
Greenie - 100mw in diy aluminum host
650nm - 260mw in MXDL host with brass heatsink
650nm - 325mw in stainless Raygun host. The dot is so bright it's
PINK/ORANGE!
Thanks Jay! Thanks Drew! Thanks Larry! Thanks Glenn! Thanks Dave!

Pink - 500mW (white w/red , ok not till later)
Please don't dazzle aircraft! You wouldn't hit someone in the face normally would you?
Home of the stainless RAYGUN !

Last edited by millirad; 07-14-2010 at 11:09 AM.
millirad is offline   Reply With Quote
Old 07-14-2010, 01:33 PM #31
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18095
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18095
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

Ah, that clarifies things

I have my doubts about the CO though... where does the other oxygen atom go? The only option would be the nitrogen, ending in nitrous oxide. If that actually happens a catalyst could convert them back to nitrogen and co2.

This process would be very similar to an automotive catalytic converter, the active materials being platinum, palladium and rhodium.... expensive stuff
It also needs to be on a substrate and all, making it near impossible to DIY.

Perhaps it would be possible to simply cut a piece from an auto cat and place it somewhere in the gas circulation, but it would need to be fairly hot to work.
Benm is online now   Reply With Quote
Old 07-14-2010, 01:54 PM #32
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Successful DIY CO2 laser, made from scratch!

From the FAQ

Quote:
Commercial sealed CO2 lasers have much in common with sealed HeNe lasers. However, you can't just take an axial flow CO2 design, seal it up, and expect the laser to work for more than a few minutes. The discharge process breaks down the CO2 to produce CO and O2 which quickly poison the lasing process. There ARE a number of solutions to this problem including the addition of other gases like H2 or H20 (water vapor) to the gas mix to react with the CO and O2 to regenerate CO2 or the use of a high temperature (300 C) cathode to act as a catalyst to stimulate recombination.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Reply

Tags
diy co2 laser





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


LinkBacks (?)
LinkBack to this Thread: http://laserpointerforums.com/f43/successful-diy-co2-laser-made-scratch-52801.html
Posted By For Type Date
??????????? ??2 ?????. ???????? - ????????????? ????? This thread Refback 02-02-2014 06:57 AM
?????? ???????? ? ???????? ???? - ??????????? ??2 ????? ? ?????????? ???????? This thread Refback 01-13-2013 09:33 PM
?????? ???????? &bull; ???????? ???? - ??????????? ??2 ????? ? ?????????? ???????? This thread Refback 10-26-2012 07:06 PM
??????????????????????? This thread Refback 10-14-2012 06:43 AM
/b/ ? ???? This thread Refback 06-11-2012 12:20 PM
co2???????Toymilitary&#39;s?????? This thread Refback 02-20-2012 11:55 AM
@[U[EX@S{ځ@ This thread Refback 01-08-2012 01:24 AM
?? ? ?? ?????! - ??????? ???????? This thread Refback 12-26-2011 03:59 PM
??????????????????????? - 2??????? This thread Refback 10-12-2011 02:01 AM
what would it take to make a co2 laser from scratch? This thread Refback 03-19-2011 01:48 PM










Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 12:36 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC