Old 03-02-2017, 03:13 PM #1
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Anousse Anousse is offline
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Default Laser as a heat source

Hi everyone,

first time poster here. I would like to use a laser as a heat source to start a chemical reaction (forming an alloy out of two metals). Having to heat it through quartz with a flame is not very efficient for large volume. The reaction is exothermic, so I just need to have it started somewhere and it will melt the whole thing almost instantly. I was asked to to find an optical solution to this and I went to a lab at a university to heat a thermocouple with a laser and see how well it would heat it. I used a 532 nm 10 W Verdi laser by Coherent (adjustable) and I could raise the temperature to 560 C with a 3.5 W output.

As you can see, I do not care about wavelength distribution width (or noise), the modes or anything, I just want energy, fast to avoid dissipation. What would you guys suggest to get? I looked at wicked laser's arctic 3.5 W and looked at aliexpress high power lasers. But looking at some threads here, wicked laser has bad reputation and aliexpress gives big numbers and the reality is "low" power output.

This is an R&D project so I want to be able to test it fast (fast shipping to Canada), be sure of what I get, and have something cheap (if it gives good reliable results, money will not be an issue).

Thank you!


Anousse is offline   Reply With Quote








Old 03-02-2017, 03:18 PM #2
Alaskan's Avatar
Class 4 Laser
 
Join Date: Jan 2014
Location: Southwest Asia
Posts: 5,913
Rep Power: 6834
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Class 4 Laser
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Southwest Asia
Posts: 5,913
Rep Power: 6834
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: Laser as a heat source

Although, more and more we have members coming here who can answer such questions. Diachi, Cyparagon, H2Oxide, CurtisOliver to name a few, I'm not going to keep listing names, this is a laser pointer forum, not a university

OK, can someone help him anyway? Even though I highly suspect this is our friendly HMT in a different incarnation.
__________________

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

Laser Safety: http://www.laserpointersafety.com/index.html

Sam's Laser FAQ: Sam's Laser FAQ: Welcome Page

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

To shorten my signature I have moved most of my laser related web links to this forum page, the second post in that thread shows most of my builds... Alaskan's Laser Links: http://laserpointerforums.com/f44/al...ml#post1449395


Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

Useless troll fighting.

Last edited by Alaskan; 03-02-2017 at 03:21 PM. Reason: Because I can....
Alaskan is offline   Reply With Quote
Old 03-02-2017, 03:24 PM #3
Razako's Avatar
Class 3B Laser
 
Join Date: Mar 2006
Location: Utah
Posts: 4,207
Rep Power: 4741
Razako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond repute
Razako Razako is online now
Class 3B Laser
Razako's Avatar
 
Join Date: Mar 2006
Location: Utah
Posts: 4,207
Rep Power: 4741
Razako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond reputeRazako has a reputation beyond repute
Default Re: Laser as a heat source

Try the Sanwu 5W spiker Perhaps. Better deal than anything from wicked lasers.
__________________

Razako is online now   Reply With Quote
Old 03-02-2017, 03:38 PM #4
Alaskan's Avatar
Class 4 Laser
 
Join Date: Jan 2014
Location: Southwest Asia
Posts: 5,913
Rep Power: 6834
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Class 4 Laser
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Southwest Asia
Posts: 5,913
Rep Power: 6834
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: Laser as a heat source

You come off as more advanced than most members here already Wicked Lasers, I agree, no.
__________________

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

Laser Safety: http://www.laserpointersafety.com/index.html

Sam's Laser FAQ: Sam's Laser FAQ: Welcome Page

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

To shorten my signature I have moved most of my laser related web links to this forum page, the second post in that thread shows most of my builds... Alaskan's Laser Links: http://laserpointerforums.com/f44/al...ml#post1449395


Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

Useless troll fighting.
Alaskan is offline   Reply With Quote
Old 03-02-2017, 03:38 PM #5
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Anousse Anousse is offline
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Default Re: Laser as a heat source

Hi Alaskan,

I'm not too sure I understand your answer, but I am not trolling or anything. I found this forum to be a good and reliable source of information on laser pointers, and this is exactly what I am looking for: a cheap, reliable, high power laser pointer! I've looked at the review thread, but most of them have too "low" power output for what I need. The "theory" part about absorption, diffusion, reflection, heat transfer, etc... I have it covered, don't worry!

Thanks Razako, I'll look it up.

Regards!
Anousse is offline   Reply With Quote
Old 03-02-2017, 03:43 PM #6
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,122
Rep Power: 7312
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,122
Rep Power: 7312
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: Laser as a heat source

Quote:
Originally Posted by Anousse View Post
Hi everyone,

first time poster here. I would like to use a laser as a heat source to start a chemical reaction (forming an alloy out of two metals). Having to heat it through quartz with a flame is not very efficient for large volume. The reaction is exothermic, so I just need to have it started somewhere and it will melt the whole thing almost instantly. I was asked to to find an optical solution to this and I went to a lab at a university to heat a thermocouple with a laser and see how well it would heat it. I used a 532 nm 10 W Verdi laser by Coherent (adjustable) and I could raise the temperature to 560 C with a 3.5 W output.

As you can see, I do not care about wavelength distribution width (or noise), the modes or anything, I just want energy, fast to avoid dissipation. What would you guys suggest to get? I looked at wicked laser's arctic 3.5 W and looked at aliexpress high power lasers. But looking at some threads here, wicked laser has bad reputation and aliexpress gives big numbers and the reality is "low" power output.

This is an R&D project so I want to be able to test it fast (fast shipping to Canada), be sure of what I get, and have something cheap (if it gives good reliable results, money will not be an issue).

Thank you!

How cheap is cheap? How much mass do you need to heat up? What metals? Your thermocouple and a chunk of metal are going to give you vastly different results, unless the mass of metal is rather small.

Seeing as you're using metals, have you considered induction heating? That removes the need for any laser safety.
__________________


445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | For Review Awaiting arrival
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD.850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW | In Transit
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2

Last edited by diachi; 03-02-2017 at 03:44 PM.
diachi is online now   Reply With Quote
Old 03-02-2017, 03:47 PM #7
Alaskan's Avatar
Class 4 Laser
 
Join Date: Jan 2014
Location: Southwest Asia
Posts: 5,913
Rep Power: 6834
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Class 4 Laser
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Southwest Asia
Posts: 5,913
Rep Power: 6834
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: Laser as a heat source

Quote:
Originally Posted by Anousse View Post
Hi Alaskan,
I think so, I also want a cheap, reliable, high power laser pointer.
I haven't found all of those in one pointer but so much of what you wrote is so sujective, what is cheap to you, what is high power to you? If you have access to all of those lasers coming here is scraping the bottom of the bucket my friend but happy we could help. HMT.

Regards![/QUOTE]
__________________

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

Laser Safety: http://www.laserpointersafety.com/index.html

Sam's Laser FAQ: Sam's Laser FAQ: Welcome Page

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

To shorten my signature I have moved most of my laser related web links to this forum page, the second post in that thread shows most of my builds... Alaskan's Laser Links: http://laserpointerforums.com/f44/al...ml#post1449395


Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

Useless troll fighting.
Alaskan is offline   Reply With Quote
Old 03-02-2017, 03:57 PM #8
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Anousse Anousse is offline
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Default Re: Laser as a heat source

Hi Diachi,

the equivalent of mass under the laser spot should be less than a gram. As I said, it is highly exothermic and as soon as a small amount melts, it reacts and the whole reaction is self driven. The material covering the thermocouple is stainless steel I believe (Nickel alloy inside). Stainless steel has a higher specific heat, but a lower thermal conductivity than the metal I want to melt. The absorption coefficient might be different, but should be high for both.

560 C is higher than what I need, so I guess that all those little variations can be tolerated in the experiment. At the moment, it looks like it will work, I just want to try it for real. This is why I want something cheap (less than 500$, but if I can get the test done for 100$, that's great)!

Thanks for your answer!
Anousse is offline   Reply With Quote
Old 03-02-2017, 04:02 PM #9
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Anousse Anousse is offline
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Default Re: Laser as a heat source

Hi Alaskan,

from my experiment, 3.5 W will be ok. I tried 2 W and I have reached 350 C, which might be ok, but considering I was heating a thermocouple and not the material of interest, I would like some room. Just answered it above, but less than 500$ would be ok. Of course, the lesser the best since this is a test.

Regards!
Anousse is offline   Reply With Quote
Old 03-02-2017, 04:37 PM #10
Alaskan's Avatar
Class 4 Laser
 
Join Date: Jan 2014
Location: Southwest Asia
Posts: 5,913
Rep Power: 6834
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Class 4 Laser
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Southwest Asia
Posts: 5,913
Rep Power: 6834
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: Laser as a heat source

450nm NUBM44.... I'm convinced now, HMT, have a nice one!
__________________

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

Laser Safety: http://www.laserpointersafety.com/index.html

Sam's Laser FAQ: Sam's Laser FAQ: Welcome Page

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

To shorten my signature I have moved most of my laser related web links to this forum page, the second post in that thread shows most of my builds... Alaskan's Laser Links: http://laserpointerforums.com/f44/al...ml#post1449395


Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

Useless troll fighting.

Last edited by Alaskan; 03-02-2017 at 04:44 PM.
Alaskan is offline   Reply With Quote
Old 03-02-2017, 04:43 PM #11
CurtisOliver's Avatar
Class 3R Laser
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 1,825
Rep Power: 5439
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
CurtisOliver CurtisOliver is online now
Class 3R Laser
CurtisOliver's Avatar
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 1,825
Rep Power: 5439
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
Default Re: Laser as a heat source

Quote:
Originally Posted by Alaskan View Post
Although, more and more we have members coming here who can answer such questions. Diachi, Cyparagon, H2Oxide, CurtisOliver to name a few, I'm not going to keep listing names, this is a laser pointer forum, not a university

OK, can someone help him anyway? Even though I highly suspect this is our friendly HMT in a different incarnation.
Alaskan, lol.

Anousse, does the laser have to be portable?

Edit: I was just about to recommend a NUBM44, but as a lab.
__________________
View my laser collection



Please make a post in our Member Collections Section. Where you can share your laser collection in one place for all of the forum to see.

Useful Links:
http://darekk.com/kalkulator/wavelength-to-rgb


Please help promote our forum by becoming a Forum Marketer. You can help by posting this on laser related media such as YouTube etc.

Quote:
Reaching out to find others who might be interested in the laser hobby, we have a community at laserpointerforums.com where we post our projects, share ideas or just ask for help.
~Alaskan

Last edited by CurtisOliver; 03-02-2017 at 04:46 PM.
CurtisOliver is online now   Reply With Quote
Old 03-02-2017, 04:51 PM #12
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Anousse Anousse is offline
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Default Re: Laser as a heat source

Thanks Alaskan,

I started to look at building one myself too, so I'll keep your suggestion in mind.

CurtisOliver,

preferably yes, it would be better to have it portable. Space is tight and there are many heat sources, so the less objects you have around, the better!

Regards!
Anousse is offline   Reply With Quote
Old 03-02-2017, 04:53 PM #13
Alaskan's Avatar
Class 4 Laser
 
Join Date: Jan 2014
Location: Southwest Asia
Posts: 5,913
Rep Power: 6834
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Class 4 Laser
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Southwest Asia
Posts: 5,913
Rep Power: 6834
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: Laser as a heat source

Optlasers sells one all ready to go in a CNC head package.
__________________

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

Laser Safety: http://www.laserpointersafety.com/index.html

Sam's Laser FAQ: Sam's Laser FAQ: Welcome Page

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

To shorten my signature I have moved most of my laser related web links to this forum page, the second post in that thread shows most of my builds... Alaskan's Laser Links: http://laserpointerforums.com/f44/al...ml#post1449395


Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

Useless troll fighting.
Alaskan is offline   Reply With Quote
Old 03-02-2017, 04:58 PM #14
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,122
Rep Power: 7312
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,122
Rep Power: 7312
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: Laser as a heat source

Quote:
Originally Posted by Anousse View Post
Hi Diachi,

the equivalent of mass under the laser spot should be less than a gram. As I said, it is highly exothermic and as soon as a small amount melts, it reacts and the whole reaction is self driven. The material covering the thermocouple is stainless steel I believe (Nickel alloy inside). Stainless steel has a higher specific heat, but a lower thermal conductivity than the metal I want to melt. The absorption coefficient might be different, but should be high for both.

560 C is higher than what I need, so I guess that all those little variations can be tolerated in the experiment. At the moment, it looks like it will work, I just want to try it for real. This is why I want something cheap (less than 500$, but if I can get the test done for 100$, that's great)!

Thanks for your answer!
Less than a gram? I think 2W would manage it just fine then. I'd personally go with a laser module rather than a handheld/pointer. Plenty of 2W (or higher) blue modules to be found online for fairly cheap, with heatsink/mounts/driver.

Be wise to take laser safety into consideration as well, keep that in mind.
__________________


445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | For Review Awaiting arrival
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD.850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW | In Transit
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2
diachi is online now   Reply With Quote
Old 03-02-2017, 05:02 PM #15
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Anousse Anousse is offline
Junior Member
 
Join Date: Mar 2017
Posts: 8
Rep Power: 0
Anousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond reputeAnousse has a reputation beyond repute
Default Re: Laser as a heat source

Thanks everyone for all the info. I just saw that you have a guide on how to make a laser, so I might just do that based on your recommendations!

You have all been very helpful.

Regards!
Anousse is offline   Reply With Quote
Old 03-02-2017, 05:11 PM #16
CurtisOliver's Avatar
Class 3R Laser
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 1,825
Rep Power: 5439
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
CurtisOliver CurtisOliver is online now
Class 3R Laser
CurtisOliver's Avatar
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 1,825
Rep Power: 5439
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
Default Re: Laser as a heat source

If 2W is adequate then you would want to use a M140 diode. I also recommend that you make a lab rather than a portable.
__________________
View my laser collection



Please make a post in our Member Collections Section. Where you can share your laser collection in one place for all of the forum to see.

Useful Links:
http://darekk.com/kalkulator/wavelength-to-rgb


Please help promote our forum by becoming a Forum Marketer. You can help by posting this on laser related media such as YouTube etc.

Quote:
Reaching out to find others who might be interested in the laser hobby, we have a community at laserpointerforums.com where we post our projects, share ideas or just ask for help.
~Alaskan
CurtisOliver is online now   Reply With Quote
Reply

Tags
heat source, high power 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











Loading








Top 50 Laser Pointer Companies - Green Lasers Top 50 Laser Pointer Companies - Blue Lasers Top 50 Laser Pointer Companies - Red Lasers
Top 50 Laser Pointer Companies - Yellow Lasers Top 50 Laser Pointer Companies - Purple Lasers Top 50 Laser Pointer Companies - Orange Lasers
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 04:46 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