405 father and son

[GooeyGus]

Well Mike, i'll join the 'scared' club with ya. I just changed mine to run at 150mA. Its now getting 135+mW after a (very dirty I may add) aixiz acrylic!

 

[rog8811]

The diode draws more current as it warms up

I am glad I am not the only one who has had this..... I thought my CC drive circuit must have a problem when I saw the ma rising...that is assuming, from comment in your first post, you are using cc mike?

Regards rog8811

 

[Hemlock_Mike]

Rog --
I'm using a "junkbox" driver  ---  parts I have around.  5 Volt LDO a cap a resistor and a pot --- Simple and effective. I uses what I have in my junk box ;D   CV driver into a 10 ohm pot.

Mike

PS -- You guys pushing limits here -- Start posting data and graphs.

 

[Hemlock_Mike]

Gus --

You're a smokin dude  ;D  Check that lens --  150 mA should give almost 150 mW but your diode may be different.  Watch the heat and go in small steps.  Don't try to be a hero here -- it costs too much.

Mike

I just ordered another 6x -- I'm ready to gamble on power. 10 mA at a step.
The only prize is data on a graph.

 

[GooeyGus]

Gus --

You're a smokin dude  ;D  Check that lens --  150 mA should give almost 150 mW but your diode may be different.  Watch the heat and go in small steps.  Don't try to be a hero here -- it costs too much.

Mike

I just ordered another 6x -- I'm ready to gamble on power.  10 mA at a step.
The only prize is data on a graph.

It peaks a bit above 140mW, but I'm sure I'm losing at least 10mW from this lens. It has like a hair or something in the lens itself. I've tried everything and even after extensive cleaning the pattern still looks like a crater when its expanded. I should be getting a few new lenses in the mail shortly so I'll let ya know what happens

 

[Timbojames]

Have any of you blown any diodes? if yes, at what current?
these things seem to be indestructable

 

[GooeyGus]

Have any of you blown any diodes? if yes, at what current?
these things seem to be indestructable

I blew one at ~280mA  ;D

I should also add that it was a mistake, and I didn't 'build up' to 280. The driver had something wrong with it and the diode failed, so I checked the current and it was about 280mA

 

[TheGr8Revealing]

What would you say the difference in difficulty of making a kryton tube laser vs. a small tube laser pointer is? (battery config, driver installation, housing modules required?, lost of custom work involved?)

On a scale of 1-10.

+ and explanation of what is probably the hardest part of just such a build.


Thanks.

 

[GooeyGus]

Building a laser with the kryton is cake. It comes with everything you need, sans a diode. (includes a driver, lens, etc etc... all the basics)

Plus there is a lot of room inside the kryton barrel for a number of different configurations. The tail clicky makes powering it on very simple, instead of having to wire in a switch on your driver.

I would say the hardest part of the kryton would be pressing the diode into the head. Its a very tight squeeze, but the head provides EXCELLENT heat sinking.

With a pen style, you will need to do some modification to the body to make everything fit and work right, but with the kryton there is absolutely no custom work to be done. Just solder it up and you're done.