A really tough 445nm! Burned and fixed!

[jcranmer]

I"m not sure if I'm more impressed by the repair job or the photos! Both are amazing.

I've been using a soldering iron for more years than I can count, and there is no way I could do work that precise. And even if I could, I'd never be able to get a clear photo of it! Congrats on both.

 

[DTR]

Very nice. Great to see some innovation from a new member.:gj:

 

[chipdouglas]

what if you cut all the wires and replaced them with 1 bigger wire on each. do you think the diode would be able to take 3000ma? i don't have the skills to try that or the tools.


ps.... great job and great pix!!! good new member!!
michael.

 

[jnhowett]

what if you cut all the wires and replaced them with 1 bigger wire on each. do you think the diode would be able to take 3000ma?

Thats what I was just wondering. This tiny wires melting is probably what causes the diodes to fail when pushed much further than 1.8A. If so we could see handheld 445s going up to 3 to 4 watts! Although only a select few would risk a diode with their soldering skills. Maybe we would only have to cut off the can.

If the diode still works after all the wires are soldered together why are there three and not one big one already?

 

[chipdouglas]

probably to stop people from going to a crazy high mw. maybe but to be honest i have no idea?...

michael.

 

[jnhowett]

But a crazy high mW would be awesome!:drool:

 

[Tech_Junkie]

Thats what I was just wondering. This tiny wires melting is probably what causes the diodes to fail when pushed much further than 1.8A. If so we could see handheld 445s going up to 3 to 4 watts! Although only a select few would risk a diode with their soldering skills. Maybe we would only have to cut off the can.

If the diode still works after all the wires are soldered together why are there three and not one big one already?

Diode dont just die from the wires melting. Often its COD.

 

[jcranmer]

probably to stop people from going to a crazy high mw. maybe but to be honest i have no idea?...

michael.

Kinda like a built in fuse. Interesting idea. I'd think there would have to be more to it then that, but who knows.

 

[Meatball]

Welcome to the forum Sammo! Impressive work! You have much more patience than I have!

I like the macros as well!

-TT

 

[BennyF]

so who is gonna be the first to try it?

 

[DrSid]

Thicker wires would not work .. many diodes stop lasing at higher currents, without any damage, to the chip, or the wires. Some die with wires intact (though I doubt many people check that out). I guess this guy indeed was lucky.

Btw. anyone has any idea why diode stops lasing at higher current without damage ?

 

[sammo]

I agree that I was lucky not to blow the laser chip.
Really interesting would be to know if the damage to the diodes that failed at higher continious currents was the damage to the laser chip or to the wiring. Has anyone opened a such dead 445nm diode?

 

[Eudaimonium]

I agree that I was lucky not to blow the laser chip.
Really interesting would be to know if the damage to the diodes that failed at higher continious currents was the damage to the laser chip or to the wiring. Has anyone opened a such dead 445nm diode?

http://laserpointerforums.com/f48/445nm-de-canning-macro-shooting-target-practise-52608.html


On-topic, I hefta say, soldering was pretty darn good, but those photos rocked my world, man.

Those macros are holy-sh*t-level of epicness. Not just the zoom and detail level, but color nad balance even when passing current through that.

Incredible.

This forum needs more people like you.

 

[blrock]

wow!!
I've got two dead 445's after incorrectly modulation. Maybe I should send them to you for repair

 

[chipdouglas]

^^^^ yours could be cod failure. it might be cheaper to buy new diodes than all that back and forth shipping.

 

[LORDJET]

Epic pics, and repair Sammo! It's really cool to see the guts of one of these diodes. Your skill level is clearly beyond mine as well, +1 for you as well:beer: