1.6W Peak 445nm SS 18650 Jayrob host W/'custom 'Hot' option' heatsink on driver

[jayrob]

Actually yes, the Micro BoostDrive can be set to about 1200mA's, but I would recommend just staying with the two jumpers shown in the documentation...

There will be less heat issues with the 540-1000 range setting using the two jumpers.

In that range, it will adjust higher than 1 Amp. It will be maxed at about 1090mA's, give or take 40mA's...

 

[dereileak]

Actually yes, the Micro BoostDrive can be set to about 1200mA's, but I would recommend just staying with the two jumpers shown in the documentation...

There will be less heat issues with the 540-1000 range setting using the two jumpers.

In that range, it will adjust higher than 1 Amp. It will be maxed at about 1090mA's, give or take 40mA's...

If I have the microboost set at about 1000ma, what can I expect for output with the laser after the 445 lens? I kinda see its about 1100mw, but I want your opinion, I want a good amount of power, yet I don't want the unit to die 3 days after I use it, lol

Also from my understanding it would be 1000ma * ~4.2 volts = 4200 mw's going to the diode, in which 75% is disapated into heat, leaving me with about ~1050mw in light power?

 

[jayrob]

If I have the microboost set at about 1000ma, what can I expect for output with the laser after the 445 lens? I kinda see its about 1100mw, but I want your opinion, I want a good amount of power, yet I don't want the unit to die 3 days after I use it, lol

Also from my understanding it would be 1000ma * ~4.2 volts = 4200 mw's going to the diode, in which 75% is disapated into heat, leaving me with about ~1050mw in light power?

At 1 Amp, using an AixiZ 445 lens, it should be around 875mW's with a normal efficiency diode... (or right around 1 Watt with 405-G-1)

 

[dereileak]

It should be around 875mW's with a normal efficiency diode... (or right around 1 Watt with 405-G-1)

That is pretty good, I was reading through all the documentation that DTR put up and I can't figure out how he managed to get the diode to push 1.6 watts out peak, and even stable around 1400mw, what did he do differently?

 

[jayrob]

That is pretty good, I was reading through all the documentation that DTR put up and I can't figure out how he managed to get the diode to push 1.6 watts out peak, and even stable around 1400mw, what did he do differently?

He got a maxed out FlexDrive with driver heatsink by special request and used a 405-G-1 glass lens... That's the difference. He's running about 1460mA's with 405-G-1...

Nobody really knows how the longevity will be with these diodes at this kind of current. We know they are very tough. But if your pushing this kind of current, you must be willing to accept the probability that it could die soon...

 

[dereileak]

He got a maxed out FlexDrive with driver heatsink by special request and used a 405-G-1 glass lens... That's the difference. He's running about 1460mA's with 405-G-1...

Nobody really knows how the longevity will be with these diodes at this kind of current. We know they are very tough. But if your pushing this kind of current, you must be willing to accept the probability that it could die soon...

Ah ha, thats why, how much extra is it to go with the flexdrive option?

 

[DTR]

My average is probably closer to 1450mW. That is why I call it peak. This test is done with a fresh off the charger battery. As the test is run you can see the power drops quickly as the diode and driver heat up bottoming out around 1300mW.

On a side note. I got my dual driver unit put together but I don't have a fresh battery here at work. It gets really bright for about 1 second and starts flickering right away. Hopefully a fully charged battery will help. It should be around 1.7A. I ordered the drivers preset from drlava at 850mA each.

 

[dereileak]

My average is probably closer to 1450mW. That is why I call it peak. This test is done with a fresh off the charger battery. As the test is run you can see the power drops quickly as the diode and driver heat up bottoming out around 1300mW.

On a side note. I got my dual driver unit put together but I don't have a fresh battery. It gets really bright for about 1 second and starts flickering right away. Hopefully a fully charged battery will help.

I would almost like to just do the same setup you did, but lowering the current a little bit to help with heat and diode life, what did it cost shipped to get the setup you did, besides the diode and batteries, just the jayrob kit

 

[DTR]

All the pricing is here on Jay's SS 18650 sales thread including shipping costs.
http://laserpointerforums.com/f64/f...-polished-perfect-445-a-52159.html#post725695

Then just shoot him a pm when you are ready and let him know how you want it set up.:beer:

 

[waffles]

I might have to copy this build provided jayrob will build me a driver heatsink.

 

[jayrob]

I've got a few of the V5 FlexDrives on hand, so it will be 'while the supply lasts'...

Some of them are spoken for. (back log of orders)

Also, I will set it up like this at your request, but also at your risk since it is not in the documentation that they are meant for this setting with a 4+ volt diode...

That said, a few of us are running them this way and they seem stable...

Edit: drlava initiated an new batch order of the V5 FlexDrives on 9/1. He says it should be about a month before they are ready...

 

[waffles]

You should take a time exposure beam shot with some smoke to get a death ray effect.

 

[dereileak]

I really want to build this, but by the time I get the diode, and the kit, plus goggles, I am looking close to around 250-300 USD which I don't know if that is worth it, would be sweet, but idk, I can buy a lot of cool stuff with that

 

[DTR]

I really want to build this, but by the time I get the diode, and the kit, plus goggles, I am looking close to around 250-300 USD which I don't know if that is worth it, would be sweet, but idk, I can buy a lot of cool stuff with that

You could always save some money by setting it to 1A(which does not require the driver to be sinked) and forgoing the copper module/heatsink. You could also just get the host kit and a microboost driver from drlava. That would save you some $$$ as well.

 

[paulzimm]

So what did you finally wind up setting the MicroFlex driver at to achieve 1.6 watts of light output? That's crazy insane

Also, do you know if your 445nm laser diode is from a Casio XJ-A130 or XJ-A140 projector? I heard the 140's are slightly more stable. I am unsure if the 130's put out that much output, just curious what you are using... Many thanks!

 

[DTR]

So what did you finally wind up setting the MicroFlex driver at to achieve 1.6 watts of light output? That's crazy insane

Also, do you know if your 445nm laser diode is from a Casio XJ-A130 or XJ-A140 projector? I heard the 140's are slightly more stable. I am unsure if the 130's put out that much output, just curious what you are using... Many thanks!

Driver is set to 1460mA and the diode is a A140.