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 > 445nm Lasers



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



Reply
 
LinkBack Thread Tools Display Modes
Old 07-29-2015, 02:40 AM #353
Class 2 Laser
 
Join Date: Jun 2010
Location: New Hampshire
Posts: 286
Rep Power: 1167
planters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond repute
planters planters is offline
Class 2 Laser
 
Join Date: Jun 2010
Location: New Hampshire
Posts: 286
Rep Power: 1167
planters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond reputeplanters has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

CHP

I can't be sure if this is a clean window failing under intense light or a contaminated window failing where the clean one would not. The G-2 would probably not get splattered with window debris if the damage was a coating and some cracking. This sounds a little more like an organic contamination. The G-2 might have introduced some dirt when it was threaded in.

These really powerful lasers are going to introduce new problems with optics damage, thermal loading and beam correction.


planters is offline   Reply With Quote







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







Old 07-31-2015, 12:52 AM #354
Junior Member
 
Join Date: Feb 2014
Posts: 16
Rep Power: 0
JimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond repute
JimMc JimMc is offline
Junior Member
 
Join Date: Feb 2014
Posts: 16
Rep Power: 0
JimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond reputeJimMc has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

Can someone suggest a place to by a cylindrical lens pair to tame this laser? I've searched and the only source I can find is optlasers.com and their maximum correction is only 3x.

Here is the housing I made for mine. It still requires a fan to operate continuously. I've got it running at 4.5amps and my thermal camera says the body stays below 100F in steady state.


-Jim
Attached Thumbnails
NUBM44 6W+ 450nm Laser Diode-nubm44.jpg  

Last edited by JimMc; 07-31-2015 at 01:01 AM.
JimMc is offline   Reply With Quote
Old 08-01-2015, 11:57 AM #355
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: NUBM44 6W+ 450nm Laser Diode

Quote:
Originally Posted by JimMc View Post
my thermal camera says the body stays below 100F in steady state.
Thermal cameras cannot accurately read the temperature of shiny metals.

Add a piece of tape to the body, and read the temp of the tape instead.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 08-02-2015, 03:34 PM #356
Junior Member
 
Join Date: May 2015
Posts: 4
Rep Power: 0
jetburner is on a distinguished road
jetburner jetburner is offline
Junior Member
 
Join Date: May 2015
Posts: 4
Rep Power: 0
jetburner is on a distinguished road
Default

I wanted to give two thumbs up for DTR and his new NUBM44. This diode is absolutely what I have been searching for. He promptly responded to any questions I had. I told him what kind of host I was looking for and he put me in touch with Ehgemus. He built me a beast of a host and it looks damn good too. Peoples tell me it looks like a light Saber. It holds 2 x 26650s and has a custom focus ring. Thanks DTR and Ehgemus!!!

Last edited by jetburner; 08-02-2015 at 03:34 PM.
jetburner is offline   Reply With Quote
Old 08-04-2015, 06:43 AM #357
RedCowboy's Avatar
Class 3B Laser
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
RedCowboy RedCowboy is online now
Class 3B Laser
RedCowboy's Avatar
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

Quote:
Originally Posted by Cyparagon View Post
Thermal cameras cannot accurately read the temperature of shiny metals.

Add a piece of tape to the body, and read the temp of the tape instead.
I've been using a temp gun not a thermal camera that I use on other metal surfaces that seems to be accurate.
This HH I threw together with a 2nd NUBM44, my decanned NUBM44 is still running strong in a different test bed.

The extruded heat sinks I got from flebay 2 for 5 bucks, they just needed little drilling and tapping and the center hole opened up.

http://www.ebay.com/itm/2pcs-53x21mm...item25947886bd
After a 60 second run the highest reading I got was 98F and they only feel a little warm so I think it's fairly accurate, but I will try a piece of tape to be sure.
Attached Thumbnails
NUBM44 6W+ 450nm Laser Diode-hh44.jpg   NUBM44 6W+ 450nm Laser Diode-hh44a-1-.jpg   NUBM44 6W+ 450nm Laser Diode-hh44a-2-.jpg   NUBM44 6W+ 450nm Laser Diode-hh44a3.jpg   NUBM44 6W+ 450nm Laser Diode-hh44t.jpg  


Last edited by RedCowboy; 08-04-2015 at 06:58 AM. Reason: typo
RedCowboy is online now   Reply With Quote
Old 08-04-2015, 07:27 PM #358
Pman's Avatar
Class 3B Laser
 
Join Date: Nov 2012
Location: Rochester, NY
Posts: 4,373
Rep Power: 12127
Pman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond repute
Pman Pman is offline
Class 3B Laser
Pman's Avatar
 
Join Date: Nov 2012
Location: Rochester, NY
Posts: 4,373
Rep Power: 12127
Pman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

Whats the width of the holes on those heat-sinks?
__________________
I'm not strange, I'm limited edition!

*Jayrob Star Trek Phaser*
# of Lasers - ***
# of DTR/510 laser adapters *
# of eGo/510 mods **
# of Batteries - ***
Wavelengths - 405, 445, 447, 450, 455, 462, 464, 470, 473, 473+, <515, 515, 520, 532, 589, 635, 638, 650, 660, 685, 808, 830, 980
Projector - PD2
O-Like mini red/green to yellow module
Beam Expanders - Dragon Lasers 2x & 5x with universal adapters
LPM's - Modified AW TEC, Custom 6.8W+ Ophir
Datalogger - ARG
Chargers - Ultrafire WF139, (2) Xtar WP2, Nitecore i2, UM20, (3) i4, (2) D4 , Opus BTC-3400 V2.2
Phlatlights - Jayrob PT-54 green 1000lm maglight, PT-54 red project box build, (3) PT-54 red, (2) PT-54 orange (3) PT-121 red, (2) PT-121 blue, (1) PT-121 green project work in progress 5000lm (1) PT-121 green

Links:

**"Pen Laser Thread"**
"Post your pics of unique builds no-one else has"
"Make your way overspec $5 pen focusable"
"Share your inexpensive builds thread"
"Pman special"
Pman is offline   Reply With Quote
Old 08-04-2015, 07:46 PM #359
micheal rosen's Avatar
Class 2M Laser
 
Join Date: Mar 2015
Location: Minneapolis, Minnesota, USA
Posts: 572
Rep Power: 3342
micheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond repute
micheal rosen micheal rosen is offline
Class 2M Laser
micheal rosen's Avatar
 
Join Date: Mar 2015
Location: Minneapolis, Minnesota, USA
Posts: 572
Rep Power: 3342
micheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

so do we know what this diode can do in terms of power now? its been more than a month, we have to have new data.
__________________
No, im not ACTUALLY michael rosen, thats why i spelled it micheal... not cause i'm stupid...

638nm HL63193MG @1.2A, S1 lens, 501B, 860mW
532nm 60-160mW HL from laserbtb
515nm 29mw HL-515 laserbtb
488nm JSDU 2214-20SLMD 20mW Argon-Ion
445nm 1300mw
405nm BDR-209 16x @ 0.6A, S1 lens, 501B LED'ed

Laserbee A 2W LPM 1mw resolution.

I have a good basic understanding of DPSS and gas lasers, so if you have questions, feel free to PM me! I don't know anything about electronics though.
micheal rosen is offline   Reply With Quote
Old 08-04-2015, 08:18 PM #360
DTR's Avatar
DTR DTR is online now
Class 4 Laser
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
DTR DTR is online now
Class 4 Laser
DTR's Avatar
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

Quote:
Originally Posted by micheal rosen View Post
so do we know what this diode can do in terms of power now? its been more than a month, we have to have new data.
Yea keeping in mind heatsinking is very important for this diode. I suggest if portable get a beefy custom host like an Ehgemus or one of the other custom hosts using the copper module with full copper back half to pull heat from the base of the diode or use a unit like the 2X26650 XML with the two part heatsink Budget beams has in stock. If a non portable see these full units which plantes was able to do more than a 30 minute run in by itself holding around 6.5W.
https://sites.google.com/site/dtrlpf...-mount-modules



For power output with 4A you will get 6W-7W and with 4.5A 6.5W-7.5W.
DTR is online now   Reply With Quote
Old 08-04-2015, 08:21 PM #361
micheal rosen's Avatar
Class 2M Laser
 
Join Date: Mar 2015
Location: Minneapolis, Minnesota, USA
Posts: 572
Rep Power: 3342
micheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond repute
micheal rosen micheal rosen is offline
Class 2M Laser
micheal rosen's Avatar
 
Join Date: Mar 2015
Location: Minneapolis, Minnesota, USA
Posts: 572
Rep Power: 3342
micheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond reputemicheal rosen has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

Quote:
Originally Posted by DTR View Post
Yea keeping in mind heatsinking is very important for this diode. I suggest if portable get a beefy custom host like an Ehgemus or one of the other custom hosts using the copper module with full copper back half to pull heat from the base of the diode or use a unit like the 2X26650 XML with the two part heatsink Budget beams has in stock. If a non portable see these full units which plantes was able to do more than a 30 minute run in by itself holding around 6.5W.
https://sites.google.com/site/dtrlpf...-mount-modules



For power output with 4A you will get 6W-7W and with 4.5A 6.5W-7.5W.
i guess that answers my question, but i mean what is the highest output someone has measured from one of these diodes? 7.5, 8W i imagine?
__________________
No, im not ACTUALLY michael rosen, thats why i spelled it micheal... not cause i'm stupid...

638nm HL63193MG @1.2A, S1 lens, 501B, 860mW
532nm 60-160mW HL from laserbtb
515nm 29mw HL-515 laserbtb
488nm JSDU 2214-20SLMD 20mW Argon-Ion
445nm 1300mw
405nm BDR-209 16x @ 0.6A, S1 lens, 501B LED'ed

Laserbee A 2W LPM 1mw resolution.

I have a good basic understanding of DPSS and gas lasers, so if you have questions, feel free to PM me! I don't know anything about electronics though.
micheal rosen is offline   Reply With Quote
Old 08-04-2015, 11:38 PM #362
RedCowboy's Avatar
Class 3B Laser
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
RedCowboy RedCowboy is online now
Class 3B Laser
RedCowboy's Avatar
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

Quote:
Originally Posted by Pman View Post
Whats the width of the holes on those heat-sinks?
The center hole is 11mm, I used to use an 31/64th drill with the old axis chrome modules but they were slightly under 12mm, DTR's excellent copper 12mm modules are a true 12mm, well a half a hair under 12mm so they fit a 12mm hole nicely. If you need a 12mm drill that oddly enough home depot has none. I ordered some here that arrived in about 4 business days.
12mm 2 Pieces Twist Drill Bits Metric High Speed HSS HS 12 mm 3 8 REDUCED Shank | eBay
p.s. I'm sure you have tools I just included the link for anyone who wanted it, there is plenty room for the 12mm.

Last edited by RedCowboy; 08-04-2015 at 11:55 PM. Reason: I'm the king of typo's :(
RedCowboy is online now   Reply With Quote
Old 08-05-2015, 01:26 AM #363
RedCowboy's Avatar
Class 3B Laser
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
RedCowboy RedCowboy is online now
Class 3B Laser
RedCowboy's Avatar
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

Quote:
Originally Posted by DTR View Post
Yea keeping in mind heatsinking is very important for this diode. I suggest if portable get a beefy custom host like an Ehgemus or one of the other custom hosts using the copper module with full copper back half to pull heat from the base of the diode or use a unit like the 2X26650 XML with the two part heatsink Budget beams has in stock. If a non portable see these full units which plantes was able to do more than a 30 minute run in by itself holding around 6.5W.
https://sites.google.com/site/dtrlpf...-mount-modules



For power output with 4A you will get 6W-7W and with 4.5A 6.5W-7.5W.
Yes I know this little finned job is only good for a minute on minute off but it cools down fast.
The ugly old unit in the pic has the 1st 7875 I ever bought in it and it will run for 5 minutes no problem.
Sure we can have 100% duty cycle with active cooling especially in table tops, but how to make it HH and sleek?
I like the laserglow approach with the long copper core aluminum finned unit enclosed in a maglight style tube with a fan at the back. But as many of us are on a budget I see the value in adding more material for a bit longer duty cycle, but it will also have a longer cooling cycle.
I'm not trying to tell you anything that you don't already know, I'm just fishing for new ideas.
Attached Thumbnails
NUBM44 6W+ 450nm Laser Diode-sany0180.jpg  

Last edited by RedCowboy; 08-05-2015 at 01:28 AM. Reason: typo again
RedCowboy is online now   Reply With Quote
Old 08-05-2015, 01:56 AM #364
DTR's Avatar
DTR DTR is online now
Class 4 Laser
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
DTR DTR is online now
Class 4 Laser
DTR's Avatar
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

Quote:
Originally Posted by RedCowboy View Post
Yes I know this little finned job is only good for a minute on minute off but it cools down fast.
The ugly old unit in the pic has the 1st 7875 I ever bought in it and it will run for 5 minutes no problem.
Sure we can have 100% duty cycle with active cooling especially in table tops, but how to make it HH and sleek?
I like the laserglow approach with the long copper core aluminum finned unit enclosed in a maglight style tube with a fan at the back. But as many of us are on a budget I see the value in adding more material for a bit longer duty cycle, but it will also have a longer cooling cycle.
I'm not trying to tell you anything that you don't already know, I'm just fishing for new ideas.
If you want 100% duty cycle that is what these are for.
https://sites.google.com/site/dtrlpf...-mount-modules
DTR is online now   Reply With Quote
Old 08-06-2015, 09:47 PM #365
DutchLaser's Avatar
Junior Member
 
Join Date: Jun 2015
Location: Nederland
Posts: 29
Rep Power: 0
DutchLaser has a spectacular aura aboutDutchLaser has a spectacular aura about
DutchLaser DutchLaser is offline
Junior Member
DutchLaser's Avatar
 
Join Date: Jun 2015
Location: Nederland
Posts: 29
Rep Power: 0
DutchLaser has a spectacular aura aboutDutchLaser has a spectacular aura about
Default Re: NUBM44 6W+ 450nm Laser Diode

Here is mine

That's what it does @ 4.5A except mine is blue

The copper module is 'press-fit' in to +400 grams aluminium



The heatsink is going to be pressed inside a Trustfire TR-1200 host.



I milled some kind of chamber or 'slot' (is that how you call it in English?) for the driver if I ever want to push the heatsink out from the flashlight without crushing the driver.
If one knows the layout of this driver, one can see that the inductor is not 'heat sinked' very well and yes, it is getting hot fast. is that a problem?
I used Artic Silver 5 thermal compound on the 8-pin chip and bolts are tightened gently but tight.
Maybe inductors are allowed to get hot, I don't know, its just some sort of iron with enameled copper wrapped around right?



This entire thing warms up pretty quick even though its weight is 445 gram.

I bought diode and driver from DTR.
Definitely recommend this guy if you are looking for laser stuff.
__________________
445nm NUBM44 Trustfire TR-1200 Host
445nm M140 WF-503b Host
450nm PLTB450B 301 laser Host
532nm 300mw Module
650nm LPC-836 MXDL Host
660nm ML101U29 MXDL Host

Last edited by DutchLaser; 08-06-2015 at 11:12 PM.
DutchLaser is offline   Reply With Quote
Old 08-07-2015, 12:21 AM #366
TaterMay's Avatar
Class 2 Laser
 
Join Date: May 2015
Location: Birmingham, AL
Posts: 350
Rep Power: 93
TaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond repute
TaterMay TaterMay is offline
Class 2 Laser
TaterMay's Avatar
 
Join Date: May 2015
Location: Birmingham, AL
Posts: 350
Rep Power: 93
TaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond reputeTaterMay has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

Quote:
Originally Posted by DutchLaser View Post
Here is mine

That's what it does @ 4.5A except mine is blue

The copper module is 'press-fit' in to +400 grams aluminium



The heatsink is going to be pressed inside a Trustfire TR-1200 host.



I milled some kind of chamber or 'slot' (is that how you call it in English?) for the driver if I ever want to push the heatsink out from the flashlight without crushing the driver.
If one knows the layout of this driver, one can see that the inductor is not 'heat sinked' very well and yes, it is getting hot fast. is that a problem?
I used Artic Silver 5 thermal compound on the 8-pin chip and bolts are tightened gently but tight.
Maybe inductors are allowed to get hot, I don't know, its just some sort of iron with enameled copper wrapped around right?



This entire thing warms up pretty quick even though its weight is 445 gram.

I bought diode and driver from DTR.
Definitely recommend this guy if you are looking for laser stuff.
Have you measured power output?
TaterMay is offline   Reply With Quote
Old 08-07-2015, 01:11 AM #367
DutchLaser's Avatar
Junior Member
 
Join Date: Jun 2015
Location: Nederland
Posts: 29
Rep Power: 0
DutchLaser has a spectacular aura aboutDutchLaser has a spectacular aura about
DutchLaser DutchLaser is offline
Junior Member
DutchLaser's Avatar
 
Join Date: Jun 2015
Location: Nederland
Posts: 29
Rep Power: 0
DutchLaser has a spectacular aura aboutDutchLaser has a spectacular aura about
Default Re: NUBM44 6W+ 450nm Laser Diode

Nope, don't have a LPM.

I want to swap my 'Chinese Ebay G2 lens' with a 'G9' lens for even better output. I'll just have to believe it...
...too bad that I have no way to test it.
__________________
445nm NUBM44 Trustfire TR-1200 Host
445nm M140 WF-503b Host
450nm PLTB450B 301 laser Host
532nm 300mw Module
650nm LPC-836 MXDL Host
660nm ML101U29 MXDL Host
DutchLaser is offline   Reply With Quote
Old 08-07-2015, 12:49 PM #368
Class 2 Laser
 
Join Date: Jan 2011
Posts: 358
Rep Power: 1116
lazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond repute
lazeristasUVISIR lazeristasUVISIR is offline
Class 2 Laser
 
Join Date: Jan 2011
Posts: 358
Rep Power: 1116
lazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond repute
Default Re: NUBM44 6W+ 450nm Laser Diode

Quote:
Originally Posted by DutchLaser View Post
I milled some kind of chamber or 'slot' (is that how you call it in English?)
I would call it a pocket. A slot is a narrow, shallow, and long feature

What is a diameter of your Al block? Looks like ~30-40 mm.
__________________
L is for Lasers, and they are good for me.
lazeristasUVISIR 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


LinkBacks (?)
LinkBack to this Thread: http://laserpointerforums.com/f65/nubm44-6w-450nm-laser-diode-94119.html
Posted By For Type Date
CNC Control - que lente buena para el laser? This thread Refback 08-10-2017 03:00 PM
???????? ?????? ?? ?????????? ? ?????? ? ??? ?? ?????? cnc-club.ru This thread Refback 02-14-2017 09:06 AM
?????-???????? : ???? NUBM44 This thread Refback 01-04-2017 09:06 AM
?????? This thread Refback 12-16-2016 09:46 AM
CNC build and use notes | Cavalcade of Mammals This thread Refback 05-06-2016 11:55 PM
nubm44 nichia - ??????? This thread Refback 02-10-2016 05:52 AM
nubm44- nichia - ??????? This thread Refback 02-09-2016 12:03 AM
Fingers elektrische Welt ? Thema anzeigen - Interessante und kuriose technische Bilder This thread Refback 12-21-2015 06:49 PM
New Diode This thread Refback 06-22-2015 10:22 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 08:24 PM.


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