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FrozenGate by Avery

Dual LOC project w/PBS cube

but, I want them to fire at the same time.

the ground is the very same, and on the positive line each laser diode has its own resistor, so if you have to combine 2 lasers of different power and different kind, all you have to do is change resistor.
The regulator IC outputs 5V, has TTL modulation, and is good all the way up to 2A.
 





to Larry:

I don't know if I have enogh adjustment room, the modules can move closer and further from the cube about 4mm, and can be rotated, and the focus adjusted. I will have to move the cube around a bit I am guessing.
But it will be a fun experience and if it does not work, then, I will design a better mounting plate, with more room for adjustments etc.
 
Success!

it took me nearly 2 hours to align the sucker!

I resolved the problem of the cube, by drilling a hole and tapping it.
I inserted a 2mm screw and glued the cube on top of the screw so I could adjust it from the bottom.

The total current going in is 720ma, so I am not pushing the diodes, since they are at 360ma each, and don't know the output power in mw, gotta buy a lpm.

I did compare it with a 420ma loc in aixiz w/acrylic, and the single diode has less haze around the dot. The double has a bit of haze, but it could be due to a dirty cube. The burning test at infinity was considerably better then the 420ma LOC set to infinity.

The sigle LOC diode could slowly dent black tape set at infinity in about 10 seconds, and the double LOC was able to punch through but it took like 10 seconds.

Obviously there are some losses, and I bet the power increase over the pushed LOC is only like 30%, but still the modules are staying cool, even after 30 minutes of on time, while the 420ma loc is getting quite hot after 2 minutes.

I will post some pictures of the beam tonight (BTW it is slightly visible during the day too).

I am sure that to reap the benefits one would have to use 2 meredith lenses, keep the cube clean ,and push both of them at 420ma.
 
Thanks for the offer Tech-Junkie, but I live overseas in Italy, so I don't believe it's possible. I'll have to get a LPM by Christmas.
Here are a few shots I did out of my window. The pictures are poor quality, since the exposure time is 2 seconds and my hand is not totally still.
The dot is actually visible on the side of the mountain about 5 miles away.
 
forgot to add pictures , here they come:
 

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LuxIgnis said:
Thanks for the offer Tech-Junkie, but I live overseas in Italy, so I don't believe it's possible. I'll have to get a LPM by Christmas.
Here are a few shots I did out of my window. The pictures are poor quality, since the exposure time is 2 seconds and my hand is not totally still.
The dot is actually visible on the side of the mountain about 5 miles away.
Click to expand...

I was not offering. The reason I asked is that there may be someone in your area to help you.
 
The nearby town can be seen on top of the mountain, and it's about 7.5 miles away, I try not to shoot it that way, cause I am sure that it would get there quite focused still, and be dangerous for car drivers and bystanders.
 
Pretty impressive!!! So what would happen if you changed out one of the reds for 405nm laser? Would the two combine to create a different color?
 
LuxIgnis, if you can design mounting plates then I'm pretty sure you can design a heatsink where you can directly press the diodes in.
You'd end up with two diodes, case common. Thus you'd also be able to machine a threaded nut if you want to focus them, take out the metallic part (grip) of an aixiz lens and just use the nut+lens (or get a bare lens+nut from LarryFDW), then you can mount the pbs cube someway (could use a higher plate over the lenses, or if the lenses sit at heatsink level you can just use the PBS over one of them, the other will need a front surface mirror). And there you go, not-too-fat portable 500mW red LOC + PBS.
 
that sounds like a good idea...

i'd need another cube though, this one is slightly chipped in one corner (not that it makes much of a difference), or maybe I could make it work with a 3mm one, but it's even harder that way.

Which sled does the 5mm cube come with? is it the phr sled?
I got a phr, but never took apart its sled.
I got my 5mm out of an older samsung dvd burner..
 
LuxIgnis said:
that sounds like a good idea...

i'd need another cube though, this one is slightly chipped in one corner (not that it makes much of a difference), or maybe I could make it work with a 3mm one, but it's even harder that way.

Which sled does the 5mm cube come with? is it the phr sled?
I got a phr, but never took apart its sled.
I got my 5mm out of an older samsung dvd burner..
Click to expand...

I'm pretty sure the PHR sled has a 5mm PBS cube, but you should ask sellers which have more experience on cubes than me.

If the idea above is somewhat confusing let me know and I'll make a quick drawing in mspaint to make my point understandable.
 
are you sure? maybe that's the case, because now that I think of it, in a dvd burner, the 780nm laser and the 650 one, only work one at a time......you can't be burning a cd and a dvd at the same time... :) .
 
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