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Post your mA and mW

Flaminpyro

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Just finished Big Blue this guy has two 18650 cells and a custom PYRO linear driver that has two speeds, balls to the wall and pretty. the diode is being feed a steady 630ma on balls to the wall Speed and with a Aixiz glass 405 lens he's putting out 486mW, with a LarryDFW lens that jumps to 547mW WOW !
On pretty speed the diode only gets 220ma and with the Aixiz glass 405 it put's out 40mW and with the LarryDFW lens it's 47mW.
Here's a beam shot and in the room I'm shining it into there are no other lights on and no smoke in the room :D
this pic with the Aixiz lens @ 630ma.

Ripping apart Big Red to make Big Blue ;)

Making a new driver for Big Blue.

Big Blue finished :)

With a DFW lens.
 
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ReNNo

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Wow, that beast is very big and heavy :D
But there is lot of space for heat dissipation.

Good build...

reno i am giving it 12v
looks like i need more parts the only 1ohm resistor is my 10w ones...
How about this resistor?
Digi-Key - P1.0W-2BK-ND (Manufacturer - ERX-2SJ1R0)
Is there any way to give it less than 12V?
On 12V there is lot, lot, lot of heat generated of LM317. I can't even imagine that heat.

You can use 10W resistor, bigger resistor is better, and minimum power for 1ohm resistor is about 1.6W (I recommend 2W)

This resistor you mentioned above would be great.
 

Morgan

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@ Flaminpyro - I'm guessing but the beam shot has GOT to be, "Balls to the Wall", setting, right? Careful you don't put scorch marks up there! ;)

Have you done anything fancy to the exit aperture? It looks to have a narrower opening and the beam looks a bit tidier but that could just be the massive glare.

M
:)
 

Flaminpyro

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Yes the beam shot is at 630ma with the stock Aixiz glass 405 lens.
the narrower opening look is because it is a lens with threads only half it's length. you can't put on a stock focus ring.

@ Flaminpyro - I'm guessing but the beam shot has GOT to be, "Balls to the Wall", setting, right? Careful you don't put scorch marks up there! ;)

Have you done anything fancy to the exit aperture? It looks to have a narrower opening and the beam looks a bit tidier but that could just be the massive glare.

M
:)
 

Morgan

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Yes the beam shot is at 630ma with the stock Aixiz glass 405 lens.
the narrower opening look is because it is a lens with threads only half it's length. you can't put on a stock focus ring.
Ah, okay I see that now. With a bit of PTFE. The host was a slightly different scale in my mind until you said that...

Here's my raw data on diode 1 from the early GB with EF.
This is mounted in an Aixiz housing, Jayrob 405-G1 lens, variable V/I power supply and Scientech 365 meter. The housing gets very warm above 500 mA so be careful.

200 ma -- 23 mW -- 3.7 Vld
300 ma -- 125 mW -- 3.8 "
400 ma -- 244 mW -- 3.9 "
500 ma -- 340 mW -- 4.0 "
600 ma -- 450 mW -- 4.1 "
700 ma -- 550 mW -- 4.1 "
800 ma -- 633 mW -- 4.15 "
900 ma -- 720 mW -- 4.2 "
1000 ma -- 820 mW -- 4.25 "
1210 ma -- 1000 mW -- 4.3 "

I keep tests short because of heating and I have not mounted the Aixiz housing in the large aluminum housing mount. I may rebuild this mount to add mass.

HMike
Hi Mike,

I notice the same thing regards powers being all over the graph, (mentioned in another post). For instance, with the same lens setup at 513mA I'm getting just over 500mW compared to 340mW in the list quoted. That is quite a difference. I know this could just be down to natural variances but do you think it is also worth keeping a note of which model projector diodes come from? Which one did your diode come from that gave these results? Mine came from a A140. They might be the same diodes but batched differently?

Perhaps we'll start to see a pattern if we can group them this way too.

Thoughts?

M
:)
 

LarryDFW

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Just finished Big Blue this guy has two 18650 cells and a custom PYRO linear driver that has two speeds, balls to the wall and pretty. the diode is being feed a steady 630ma on balls to the wall Speed and with a Aixiz glass 405 lens he's putting out 486mW, with a LarryDFW lens that jumps to 547mW WOW !
Flaminpyro;

I like your ample finned heatsink !

My lens is adding ~13% over the 405 glass lens.

That seems like a nice power boost.

LarryDFW
 

Glutton

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data from diode 2

980mA was the highest reading i got when setting my micro boost w/18650 before the mA began to drop off.
?1050mW? maxed out my laserbee LPM
405-g-1 lens
after powering it for about ten seconds to test the mW it began to flash on and off so i think the microboost cant handle it at 980mA. gonna set it back down to 6-700mA soon.

At least I can say I broke the 1W barrier!
 

jayrob

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What battery? More than likely it's the battery not handling the current...

I had a cheap 18650 drop out on me at only about 700mA's.

Then I put one of my AW brand 18650's in there and it held steady for a higher adjustment.
 

SpyderFire

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What battery? More than likely it's the battery not handling the current...

I had a cheap 18650 drop out on me at only about 700mA's.

Then I put one of my AW brand 18650's in there and it held steady for a higher adjustment.
I agree , that sounds like the battery is at fault.

Also , a bit off topic, i thought i saw someone make a 445nm pen style pointer, but i cant find the post. has anyone seen it? I'd like to see what batteries they used and what current they were running etc...
 

Hemlock_Mike

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Morgan --

Mine is the first diode tested from EF's first of second GB group.


HMike
 

jayrob

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That's about the same efficiency as my small 445 build in the SS CR2 host...

I got 262mW's @ 448mA's with a 'small aperture sleeved' 405-G-1. But I checked it again last night after maybe 20 minutes of use, and it gave 280mW's with a battery that only had 3.85 volts??

It's like it got better with a 'burn in' period... :)

Edit: Scratch that... Man I've been staying up too late! I remember that I took out the 'small aperture sleeve' to send it to Dave... :crackup:

That's why it gave more power...
 
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