gcdante

Member

Total Posts: 26

Member Since:
April 2010

August 25, 2010, 11:03 PM

So I’m still having problem with dying laser diodes.  Every time I cut one or two out, another one or two go bad within a session.  I’m down to about 38 of my original 50 laser diodes and am considering buliding a new setup with new diodes.  I need to know a few things:

  1.  Could the fact that I’m using solid, copper wire from the power supply leads be creating a problem?  I can buy the braided stuff if need be.

  2.  I’ve never liked wire nuts because I don’t think they make a solid connection for smaller wires.  Should I just be soldering or using a breadboard since that’s what I’m used to?

  3.  Is there some sort of short or something else weird that could be causing this?  I don’t think running the lasers at 5V causes this.  I really think it’s a wiring issue or mistake.

WinterHeart

Member

Total Posts: 69

Member Since:
June 2010

[ # 1 ]

August 25, 2010, 11:52 PM

I had the same problem a while ago and I made this thread:

http://www.worldhairloss.org/index.php/forums/viewthread/295/

Luckily for me, I only ended up losing 6 diodes in total. The problem seems to have been cause by how the power supply was connected to a power bar like this:

In Japan, the walls sockets don’t have 3 holes, so it was the only thing I could do at the time. But then OMG gave me a small adapter that I’m now using. It’s just a small cube with 3 holes on one end and 2 metal pins on the other. So then, I was able to plug it directly into the wall socket without the need for a bar, and the problem completely disappeared.

Not sure how you connect yours, but if you’re using a bar of some sort, that might be what’s causing it.

OverMachoGrande

Editor

Total Posts: 811

Member Since:
January 2010

[ # 2 ]

August 26, 2010, 05:04 PM

Hey, gcdante!

In my experience *so far* -except for a couple of isolated incidences like WinterHeart’s situation- it’s mostly been the fault of the diodes.  It doesn’t really matter what wire you use or how you connect them, the fault usually lies with the diodes themselves.  I actually used solid wire for the black on my original helmet.

What sort of power supply are you using, though?  ...And, by the way, I’ve heard a couple of seperate stories now about surge protectors causing extra heat for the diodes.  This is only a three or so out of HUNDREDS so it’s not any sort of high occurance, but it seems to happen with some.

-O.M.G.

Build your own Laser Helmet | Laser Brush | Laser Device at OverMachoGrande.com!  The internet’s first, best, and biggest consumer advocate site on laser therapy for hair loss!  It’s time to educate yourself about one of the greatest treatments in FORUM HISTORY…

gcdante

Member

Total Posts: 26

Member Since:
April 2010

[ # 3 ]

September 05, 2010, 09:42 PM

Hey!

  So basically here’s what I’m using:

  1.  A 3.3V Mean-well 7A power supply… it’s the same one that you have up on OverMachoGrande, actually.

  2.  No surge protector.. it’s right into the wall.

  3.  The lasers are in 6mm foam… should I try using 3mm to reduce the amount of heating?

  Also… do you ever get people who sell off their helmets?  I wouldn’t mind buying one and seeing how it works.  I may have to have you make one for me if nobody wants to part with one.

—G

fullyloaded

Member

Total Posts: 35

Member Since:
May 2010

[ # 4 ]

September 11, 2010, 06:53 AM

my laser helmet has been heating up lately and what i do to drop the heat is sit in front of a fan when im using the helmet and it works great very little heat to the touch hope this helps hey O.M.G maybe you should make the helmets with a small computer fan in it lol…