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 > Experiments & Modifications



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



Reply
 
LinkBack Thread Tools Display Modes
Old 06-08-2014, 08:56 AM #1
Photonz's Avatar
Class 2M Laser
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Photonz Photonz is offline
Class 2M Laser
Photonz's Avatar
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Exclamation 1.85A LM317 DDL Driver w/ M140 diode

I just built (on my bredboard - not recommended) an LM317/DDL Driver to run a m140 diode at 1.85A and it works! I had seen a few threads with people asking about using this driver for an M140 diode and I saw some skepticism. Well now here it is, a working 1.85A driver! Homemade too for very cheap



Details:
4x 2.7 ohm resistors in parallel
1x 1.5A LM317 Transistor
1x 25V 10uF Capacitor
2x 16340 Li-ion Batts
1x M140 Diode


__________________
5mW 650nm pen
250mW 650nm handheld

20mW 532nm pen
50mW 532nm pen

50mW 520nm Laserbtb handheld
1W 445nm Lazerer handheld
~150mW Single Mode 450nm C6

>1W 445nm DDL/LM317 Complete Homemade Build
3.1W Mag Machine


Wer fremde Sprachen nicht kennt, weiß nichts von seiner eigenen
Photonz is offline   Reply With Quote







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







Old 06-08-2014, 09:06 AM #2
Zeebit's Avatar
Class 3R Laser
 
Join Date: Aug 2012
Location: PH
Posts: 1,125
Rep Power: 114
Zeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond repute
Zeebit Zeebit is offline
Class 3R Laser
Zeebit's Avatar
 
Join Date: Aug 2012
Location: PH
Posts: 1,125
Rep Power: 114
Zeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond repute
Default Re: 1.85A LM317 DDL Driver w/ M140 diode

LM317 is limited to 1.5A with proper heatsinking. I don't see any in your setup. Did you test if it actually puts out 1.85A?
Zeebit is offline   Reply With Quote
Old 06-08-2014, 09:16 AM #3
Photonz's Avatar
Class 2M Laser
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Photonz Photonz is offline
Class 2M Laser
Photonz's Avatar
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Default Re: 1.85A LM317 DDL Driver w/ M140 diode

Not yet, so it may be 1.5A then. I don't have a test load, or the diodes needed to make one.

Edit: So far it reached 1W with an acrylic lens. Stopped it there so the driver doesn't overheat. Will try to go further with a glass lens and a fan to cool.
__________________
5mW 650nm pen
250mW 650nm handheld

20mW 532nm pen
50mW 532nm pen

50mW 520nm Laserbtb handheld
1W 445nm Lazerer handheld
~150mW Single Mode 450nm C6

>1W 445nm DDL/LM317 Complete Homemade Build
3.1W Mag Machine


Wer fremde Sprachen nicht kennt, weiß nichts von seiner eigenen

Last edited by Photonz; 06-08-2014 at 09:47 AM. Reason: add update
Photonz is offline   Reply With Quote
Old 06-09-2014, 02:21 AM #4
Photonz's Avatar
Class 2M Laser
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Photonz Photonz is offline
Class 2M Laser
Photonz's Avatar
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Default Re: 1.85A LM317 DDL Driver w/ M140 diode

So I transferred the build to an actual board and finished the circuit today. This one uses four 3 ohm resistors in parallel to keep the current at 1.5A which is the LM317 transistor's current limit. Here are some pics


Back side


Nice Lasing
__________________
5mW 650nm pen
250mW 650nm handheld

20mW 532nm pen
50mW 532nm pen

50mW 520nm Laserbtb handheld
1W 445nm Lazerer handheld
~150mW Single Mode 450nm C6

>1W 445nm DDL/LM317 Complete Homemade Build
3.1W Mag Machine


Wer fremde Sprachen nicht kennt, weiß nichts von seiner eigenen

Last edited by Photonz; 06-09-2014 at 02:22 AM.
Photonz is offline   Reply With Quote
Old 06-09-2014, 02:31 AM #5
IsaacT's Avatar
Class 4 Laser
 
Join Date: Aug 2010
Location: Austin, TX
Posts: 5,904
Rep Power: 932
IsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond repute
IsaacT IsaacT is offline
Class 4 Laser
IsaacT's Avatar
 
Join Date: Aug 2010
Location: Austin, TX
Posts: 5,904
Rep Power: 932
IsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond reputeIsaacT has a reputation beyond repute
Default Re: 1.85A LM317 DDL Driver w/ M140 diode

LPM shot of current setup?
__________________
ALL MY BUILDS/REVIEWS HERE *CLICK!*
MY BEST BUILDS: Adegan Relic | Aquarius | Frost | Ivy

Been bitten by the shutterbug hard.

IsaacT is offline   Reply With Quote
Old 06-09-2014, 02:42 AM #6
Photonz's Avatar
Class 2M Laser
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Photonz Photonz is offline
Class 2M Laser
Photonz's Avatar
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Default Re: 1.85A LM317 DDL Driver w/ M140 diode

So far it's hit 950mW.. recharging the batts and going to try again
__________________
5mW 650nm pen
250mW 650nm handheld

20mW 532nm pen
50mW 532nm pen

50mW 520nm Laserbtb handheld
1W 445nm Lazerer handheld
~150mW Single Mode 450nm C6

>1W 445nm DDL/LM317 Complete Homemade Build
3.1W Mag Machine


Wer fremde Sprachen nicht kennt, weiß nichts von seiner eigenen

Last edited by Photonz; 06-09-2014 at 02:54 AM.
Photonz is offline   Reply With Quote
Old 06-09-2014, 03:07 AM #7
Photonz's Avatar
Class 2M Laser
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Photonz Photonz is offline
Class 2M Laser
Photonz's Avatar
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Default Re: 1.85A LM317 DDL Driver w/ M140 diode

Batteries recharged... 1045mW!

1W peak running off two ****fires and using an acrylic lens isn't half bad
__________________
5mW 650nm pen
250mW 650nm handheld

20mW 532nm pen
50mW 532nm pen

50mW 520nm Laserbtb handheld
1W 445nm Lazerer handheld
~150mW Single Mode 450nm C6

>1W 445nm DDL/LM317 Complete Homemade Build
3.1W Mag Machine


Wer fremde Sprachen nicht kennt, weiß nichts von seiner eigenen

Last edited by Photonz; 06-09-2014 at 03:07 AM.
Photonz is offline   Reply With Quote
Old 06-09-2014, 03:11 AM #8
Zeebit's Avatar
Class 3R Laser
 
Join Date: Aug 2012
Location: PH
Posts: 1,125
Rep Power: 114
Zeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond repute
Zeebit Zeebit is offline
Class 3R Laser
Zeebit's Avatar
 
Join Date: Aug 2012
Location: PH
Posts: 1,125
Rep Power: 114
Zeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond reputeZeebit has a reputation beyond repute
Default Re: 1.85A LM317 DDL Driver w/ M140 diode

Not bad. Stick a larger heatsink on the 317 for longer runtime. Are you using a plastic lens barrel? Has it not melted yet?
Zeebit is offline   Reply With Quote
Old 06-09-2014, 03:17 AM #9
Photonz's Avatar
Class 2M Laser
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Photonz Photonz is offline
Class 2M Laser
Photonz's Avatar
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Default Re: 1.85A LM317 DDL Driver w/ M140 diode

I'll look for a larger heatsink online and the lens hasn't melted
__________________
5mW 650nm pen
250mW 650nm handheld

20mW 532nm pen
50mW 532nm pen

50mW 520nm Laserbtb handheld
1W 445nm Lazerer handheld
~150mW Single Mode 450nm C6

>1W 445nm DDL/LM317 Complete Homemade Build
3.1W Mag Machine


Wer fremde Sprachen nicht kennt, weiß nichts von seiner eigenen

Last edited by Photonz; 06-09-2014 at 03:17 AM.
Photonz is offline   Reply With Quote
Old 06-09-2014, 04:50 PM #10
bdgreenb's Avatar
Class 2M Laser
 
Join Date: Jul 2011
Location: Los Angeles, CA
Posts: 716
Rep Power: 1721
bdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond repute
bdgreenb bdgreenb is online now
Class 2M Laser
bdgreenb's Avatar
 
Join Date: Jul 2011
Location: Los Angeles, CA
Posts: 716
Rep Power: 1721
bdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond reputebdgreenb has a reputation beyond repute
Default Re: 1.85A LM317 DDL Driver w/ M140 diode

Definitely go with a glass lens, the acrylic works. Until it doesn't! And when it melts the fumes will mess up your diode window, which even after rigorous cleaning will never really be the same.
__________________
Too many PHR-805T Builds
700mw 12x in Daguin build! Link
a140 1.5W Mini Led Host
a140 1.5W Pen Build
1.7W custom c8 MrCrouse HS for sale
Johnny #5 5-Mode 445Link!
Decanned 9mm 2W>1W>.2W
O$ram450 MSV4-LTE 230mw
462nm+ 9mm in v5 Cu Head 1.7W@ 2.4A
462nm+ resurrected!
Custom Hammond box "480nm" diode build
48mw Argon ion 7-Lines!!!
Alibaba 511nm ~25mw
Home made 3 10440 w/ lm317 Homebrew driver ~100mw PL520
520nm 200mw Cypreus EDCLink!
firedragon-III ~400mw 532
543nm HeNe Done!Link!
CNI-GLP 589
200mw sm 635 Funkenstein
510mw 638 Cypreus II(400mw with 3-element)
1W 638nm Gold leadlight
MANY LOC Builds 300mw+
660nm JayrobPen Build 300mwLink
1.1 Watt 660nm!
1W+ 808nm firedragon
REKE-500
Lumia!
Radiant X4 3.7W LPM
bdgreenb is online now   Reply With Quote
Old 06-09-2014, 09:47 PM #11
Photonz's Avatar
Class 2M Laser
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Photonz Photonz is offline
Class 2M Laser
Photonz's Avatar
 
Join Date: Jun 2013
Location: United States
Posts: 542
Rep Power: 215
Photonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond reputePhotonz has a reputation beyond repute
Default Re: 1.85A LM317 DDL Driver w/ M140 diode

Ill pop a 3 element glass lens in there
__________________
5mW 650nm pen
250mW 650nm handheld

20mW 532nm pen
50mW 532nm pen

50mW 520nm Laserbtb handheld
1W 445nm Lazerer handheld
~150mW Single Mode 450nm C6

>1W 445nm DDL/LM317 Complete Homemade Build
3.1W Mag Machine


Wer fremde Sprachen nicht kennt, weiß nichts von seiner eigenen
Photonz is offline   Reply With Quote
Reply

Tags
ddl driver, lm317, m140 blue laser diode





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 09:52 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