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 07-22-2013, 10:43 PM #1
Junior Member
 
Join Date: Jun 2013
Posts: 5
Rep Power: 0
scuba4u is a jewel in the roughscuba4u is a jewel in the roughscuba4u is a jewel in the roughscuba4u is a jewel in the rough
scuba4u scuba4u is offline
Junior Member
 
Join Date: Jun 2013
Posts: 5
Rep Power: 0
scuba4u is a jewel in the roughscuba4u is a jewel in the roughscuba4u is a jewel in the roughscuba4u is a jewel in the rough
Post 9mm 445nm heatsinking question

So I recently bought a 9mm module from DTR, with a 405-G-2 lens and 2.2A flexdrive attached. I love his modules and how easy he makes things. I'll run through my build quickly before getting to the problem.

Here is the host provided by Survival Laser, it's beautiful and has a nice weight to it.


I also ordered a blank driver board to use as a battery contact.


It took me connecting the wires and mounting it before I noticed that the wires were not connected to the positive and negative contacts on the other side. Additionally I realized I had no springs laying around so I fashioned one out of an earring I found laying around.






Here comes the problematic part...


I also bought a stainless steel host from survival laser with the NON tapered heatsink. I didn't like the way the tapered one looks with the focus ring basically sticking off the end of the laser. I thought the non extended one would look much nicer. This came back to haunt me. With the driver module attached to the diode directly I discovered that I couldn't fit the heatsink inside the host properly. So I decided to remove the aluminum part of the diode module which protects the driver circuit. With the extra 1/4 inch and a little gentle bending of the driver board it fit.



I put it all together and it works fine, here's one of the "finished" product.


The thing I don't like is having that aluminum part of the diode module essentially wasted (as well as exposed). Additionally, the duty cycle for this is pretty atrocious (30 sec on 2-5 minutes off). I didn't realize just how poor stainless steel is at conducting heat compared to aluminum or copper.

All that to say, I have an extra aluminum heatsink laying around. By attaching the aluminum part of the diode module over the driver, it causes the actual diode part of the aixiz module to not be in contact with the copper host heatsink. My question is whether I would gain any advantage by attaching this extra heatsink over the part of the diode module that hangs out the front like so:


My hesitation is due to the fact that the actual diode would then have just the copper aixiz module around it and the aluminum heatsink on top of that. The copper host heatsink would be in contact with the aluminum part of the diode module rather than directly on the diode. Between the two of these, will I have adequate heatsinking? Is this dangerous since I'm using such a powerful diode? Please let me know any thoughts or suggestions!


scuba4u is offline   Reply With Quote







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







Old 07-23-2013, 02:46 PM #2
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: 9mm 445nm heatsinking question

Hey looking good for a 1st build. Nice and clean. Good idea on the spring... that is a microboost driver however other than that +rep.
__________________
"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
Old 07-23-2013, 04:09 PM #3
scumbagatheist's Avatar
Renaissance Man
 
Join Date: Feb 2013
Location: Fort Worth, Texas
Posts: 2,124
Rep Power: 188
scumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond repute
scumbagatheist scumbagatheist is offline
Renaissance Man
scumbagatheist's Avatar
 
Join Date: Feb 2013
Location: Fort Worth, Texas
Posts: 2,124
Rep Power: 188
scumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond repute
Default Re: 9mm 445nm heatsinking question

I cannot see any advantage, whatsoever, in your proposed fix. You need as much sinking around that module as possible. Why don't you remove the driver and put it in the pill, where it belongs? That way, you can fit the module into the heatsink properly.
__________________
Sticky: List of LPF Members With LPMs and Locations
Made In LPF - All Your Lasers Needs Right Here
SBA's Before You Touch That Diode Thread
My Multimedia Thread
LivinLoud's Sicky: Guide to Owning Lasers

405nm S06J, 675mW Krtyton Groove-Polished
The Bastard:445nm, 2W M-140 UF KF-T60
445nm, 9mm, 3.2W Kryton Groove-Polished
450nm Osram PL450B, 130mW, Kryton Groove-Polished
La Spada Verdi: 1st Ever PL520 MS-SSW 115mW
532nm, 100mW, Taped to Sanyo 18650/3100mAh
638nm Opnext, 160mW, Kryton Groove-Polished
650nm LPC-826, 360mW, MXDL Host Kit by Mrcrouse
650nm <5mW Laser Pointer/UV LED/LED flashlight NEBO 5063


5W Ophir 20C-A-1Y LPM
scumbagatheist is offline   Reply With Quote
Old 07-23-2013, 08:06 PM #4
Junior Member
 
Join Date: Jun 2013
Posts: 5
Rep Power: 0
scuba4u is a jewel in the roughscuba4u is a jewel in the roughscuba4u is a jewel in the roughscuba4u is a jewel in the rough
scuba4u scuba4u is offline
Junior Member
 
Join Date: Jun 2013
Posts: 5
Rep Power: 0
scuba4u is a jewel in the roughscuba4u is a jewel in the roughscuba4u is a jewel in the roughscuba4u is a jewel in the rough
Default Re: 9mm 445nm heatsinking question

Quote:
Originally Posted by jander6442 View Post
Hey looking good for a 1st build. Nice and clean. Good idea on the spring... that is a microboost driver however other than that +rep.
Actually it's an X-drive since I am using two 18650 batteries with it.

Anyway, new update is I have mounted the additional heatsink on the module.



This has upped the duty cycle from 30 seconds on, 5 min off to about 60 seconds on and 2 minutes off. I attribute it to the fact that part of the heatsinking is now done by the large copper module in the host, and the excess is done through the aluminum fins. They really help cool the whole thing off much more quickly now.

I measured the power with a Thor labs thermopile and came up with an average power between 2.6-2.7 Watts. Not the 3+ W I was hoping for, but you all know how it goes.



Here is the thermopile (sorry couldn't get the thermopile and gauge in the same picture due to the table setup)





Anyway. I call this a successful build. It's a bit of a frankenstein's monster with the extra heat sink on top, but I really like it. I've gotten a few lightsaber comments from people as well.

Thanks for reading, and special thanks to DTR and Survival Laser who both shipped me parts within 20 hours of ordering. Spectacular service!
scuba4u is offline   Reply With Quote
Reply

Tags
445nm, 9mm, heatsink, stainless steel, survival 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








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 06:09 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