This will be my review of the Flaminpyro SS-032. This started out as a single flexdrive at 1.5A however in the push for more I decided to go for a dual flexdrive setup. Both flexdrives are set for 900mA a piece. At this level I found zero heating problems and no need for heatsinks on the drivers. It would have been extremely difficult to heatsink them both in this host anyway. A single flexdrive would burn your finger quickly at 1.5A and at 900mA I barely noticed warmth. Testing was done with a 405G1 lense but normally I use an Aixiz glass.









Here I am setting the drivers up at 900mA each, and testing together at 1.8A


Preparing for installation


The end result 2.147W


I have now found the need for premium 18650's. The Trustfire's being good for the money for most things are taking a beating at this current draw.

Beamshots




Thanks for viewing,
Chad

You may have overflowed an integer depending on how many nW it outputs...

Looks great! I still need a handheld 445nm.

-Trevor

Great build ! Dual Flexdrive setup really rocks !

You must be holding the record for most powerful handheld laser.

I like this host design. It reminds me of SU25's rocket pods.

Hmmm I wonder who dose really hold the bragging rights to the most powerful hand held laser...


Either way, Sick build!! what's the duty cycle on this beast?

What are you waiting for?

At that power, not for long.

Very short I'm sure. I use the same host (SS18650 build by jayrob) and running it at only 900mA it still heats up relatively quickly (ie 30-60seconds or so). So at double that power... it would heat up pretty darn fast. But in all fairness I rarely have need to actually run my laser very long at a time, and given it is pushing out over double the power would mean it would be burning stuff even faster thus reducing your need to power it for long. I expect at those powers realistically he's probably a 15-30second duty cycle, I'm sure you could push it more than that but you probably wouldn't want to push it too far.

Very nice.

Can you make a video showing the power drop in that host in a few minute run? I would be interested to see.

Anyway great job. It is good to see others pushing their way up.

If he pushed it anymore it would just shut off. We had a member push it well over 2W w/o the 406g1 lens, and it shut down. Then it came back to life after he turned it down. But then it degraded very fast, and zombied IIRC.

@DTR Good point.

That would have been 2047 or 2048, not 2147 - provided that its a problem at all.

No no, that comment was in reference to pushing the duty cycle, not increasing the power . I generally play it pretty safe on overheating so there is most certainly room above the numbers I stated, but I would expect a normal duty cycle to follow somewhere around those numbers in this host.

Oops. I'm slow sometimes. I've been up since 9AM yesterday morning.

The FP heatsink does have more mass than Jayrob's design. Obviously this isn't a huge host with a huge heatsink however at 1 minute runtime it is quite warm. At 2 minutes I would consider it hot. Ive really had no need to run it more than 1 minute at a time. I currently have around 30 minutes runtime so far with zero degradation.

Maximum value for a signed integer is 2,147,483,647 - also known as (2^31)-1.

-Trevor

I just had the meter to above 2.4W by adding my red at the same time.

Great Job a very powerfull build.

I think DTR's remark is right : They won't be balanced, so adding HS to the driver is a good idea.

VERY NICE! Man I am so jealous of the few of you guys who have got past 2 WATTS. That's a sick looking focus ring.

That totally depends on the processor you are working with. If you are working with a uC that has 12 bit singed integers, 2047 would actually be the upper limit of the signed integer value. Obviously it would be likely to overflow from +2047 to -2047 and keep on counting from there.

With x86 hardware integers are usually 16 bit, with small and big integers as 8 and 32 bit values. On uCs its more hardware dependant though, and some architectures offer 12 or 14 bit 'integers' by default.

Just want to give an update to my previous post about dual drivers with one running at max and the other filling in the rest. I got a PM back from drlava and he said that is only the case with the microboost's when run in parallel. He said with the way the flexdrive is made they will both be putting out the current they are set to. So heatsinking the drivers may be a non issue with this build.

I really Like this build!

Only if you have them set that way. If you have them both set to 0.9A, they'll both output 0.9A.

Yes, hundreds of millions of nanowatts might cause overflow

Hey Captain Obvious. He already corrected his statement 2 posts above yours.

Just remember that the microboost does not work that way. It will run one @ max and the other filling in the rest.

2W from Aurora ? Sweet !

It looks like these diodes are quite hard to push, keep updates on the degradation - cool build