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 > Tutorials, Help & Repairs



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



Reply
 
LinkBack Thread Tools Display Modes
Old 05-23-2013, 12:44 PM #1
jander6442's Avatar
Class 3B Laser
 
Join Date: Jan 2009
Location: Ft Myers Fl
Posts: 3,219
Rep Power: 884
jander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond repute
jander6442 jander6442 is offline
Class 3B Laser
jander6442's Avatar
 
Join Date: Jan 2009
Location: Ft Myers Fl
Posts: 3,219
Rep Power: 884
jander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond reputejander6442 has a reputation beyond repute
Default re-flowing using TEC

I had the idea to set my own LEDs or Cree emmiters myself, but without using a hotair gun or toaster oven/frying pan... brilliant this will work on those single side driver boards for sure.



This is not my video just one I found, but hey good on this unless it has been posted here before.


__________________
"http://laserpointerforums.com/f38/dual-411nm-1335mw-2d-mag-pbs-cube-newport-mounts-89822.html"

http://laserpointerforums.com/f65/titan-s-fist-active-tec-cooled-massive-mag-lite-pic-heavy-87489.html

http://laserpointerforums.com/f40/yellow-lantern-mag-lite-638-520nm-combo-87712.html

http://laserpointerforums.com/f45/520nm-hd-250ma-defiant-extended-copper-sink-86562.html


Got butthurt feelings during a post... IF you're new, read this.
jander6442 is offline   Reply With Quote







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







Old 05-23-2013, 12:59 PM #2
Class 4 Laser
 
Join Date: May 2007
Location: Queensland, AU
Posts: 7,549
Rep Power: 1100
Things has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond repute
Things Things is offline
Class 4 Laser
 
Join Date: May 2007
Location: Queensland, AU
Posts: 7,549
Rep Power: 1100
Things has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond repute
Default Re: re-flowing using TEC

One thing I'd be worried about is the solder in the TEC itself melting .. lol
Things is offline   Reply With Quote
Old 05-23-2013, 01:02 PM #3
csshih's Avatar
Class 2 Laser
 
Join Date: Sep 2010
Location: San Jose, CA
Posts: 431
Rep Power: 219
csshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond repute
csshih csshih is offline
Class 2 Laser
csshih's Avatar
 
Join Date: Sep 2010
Location: San Jose, CA
Posts: 431
Rep Power: 219
csshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond reputecsshih has a reputation beyond repute
Default Re: re-flowing using TEC

PilotPTK definitely knows what he's doing. cool video.
csshih is offline   Reply With Quote
Old 05-23-2013, 01:10 PM #4
norbyx's Avatar
Class 3R Laser
 
Join Date: Apr 2013
Location: Costa Rica
Posts: 1,200
Rep Power: 59
norbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond repute
Send a message via Skype™ to norbyx
norbyx norbyx is offline
Class 3R Laser
norbyx's Avatar
 
Join Date: Apr 2013
Location: Costa Rica
Posts: 1,200
Rep Power: 59
norbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond repute
Send a message via Skype™ to norbyx
Default Re: re-flowing using TEC

Very interesting video, thanks for sharing.
__________________
405nm 500mw--
Danefex minisabre 455nm 1.5W--

NLC Argon 458nm 30mW
Laser physics Argón 488nm 90mw

Ebay Pen Style 532nm 40-80mW
Rick Trent 638nm 1.2w--Blord 1 Watt 638nm EDC laser Shadow GF1 (review)--05-LHR-991 MELLES GRIOT HeNe 16mW--AEROTECH ELECTRO OPTICAL OEM5R 7mW

Laserbee II 3.2 LPM.
norbyx is offline   Reply With Quote
Old 05-24-2013, 12:01 AM #5
Meatball's Avatar
Class 3B Laser
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Meatball Meatball is offline
Class 3B Laser
Meatball's Avatar
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Default Re: re-flowing using TEC

So...

with solder paste - and this is very specific to the type of solder paste you're using, the manufacurer of the paste should include a datasheet with a "profile" to match the physical paste characteristics. High volume re-flow ovens have configurability to run the melting - cooling process to match the specific profile for the job. This ensures a much higher yield of quality joints being made.

Reflow soldering - Wikipedia, the free encyclopedia

I bring this up because I just saw how it was done in one of Vishay's re-flow labs. (We have wave soldering and re-flow in the test and reliability lab)

I think if the solder is left in the "reflow" state too long, there is a higher susceptibility to burning out the flux. If the cool down process is too slow, you risk higher chances of cold joints and damaging components.

My idea for here is that instead of simply turning the TEC off - I would argue that reversing polarity of the TEC will ensure a better cool down ramp - which would better match a typical paste "profile".

All the re-flow machines I see operate have active cooling for the boards once they emerge from the conveyor-belted oven. I'm sure with a stream controller, a DAC, and a bipolar constant current - voltage controlled supply, once could "upload" a profile to a microcontroller - which could stream the profile's data in time to a TEC current control on the TEC PSU.

It would be a great project!
__________________
FIAT LUX

(\__/)
(='.'=)
(")_(")

Last edited by Meatball; 05-24-2013 at 12:02 AM.
Meatball is offline   Reply With Quote
Reply





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








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 11:50 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