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Sanwu 7W silver

Nordhavn

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Anyone here have one of these?
I just ordered along with the beam expander and G7 lens.
 

BobMc

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Don't have a 7watt Sanwu Silver, but I do have a 7watt Sanwu Spiker with a g7 so I know your getting a whole bunch of blue photons to play with. Enjoy and be safe. :)

If you would put your location (roughly) in your signature. :thanks:

Also their BE's are just too much fun!
 
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Nordhavn

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Thanks...

How's the divergence? I'm assuming it's similar to most MM 445 diodes. I have one of the original Arctics and a custom 1W casio diode one to compare to. I wanted to step up a bit in power. If I like this one will probably go with a 1W 520 as that will be a good replacement for my RPL 450 that took a sill off an amp rack and no longer lases. It's definitely fixable though.
 

BobMc

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They use the nubm44 diode which divergence is pretty bad. But with the BE it cleans it up fairly acceptable. With 7watts being pushed out the top it's just a sight to see. Your definitely going to be getting a crowd pleaser. If you can make a post and tell us your thoughts after you receive it, it's always nice to read what other people think. And beam shots. :)
 
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Nordhavn

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Yes I will definitely post up a review of sorts including some burning and other things. After all, that's what class four is all about! ;)

I will be interested to see if I can desolder parts with it! :crackup:
 

paul1598419

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Be careful of reflections while trying to melt solder on a PC board. To do that you will have to be quite close to it and it only takes one mistake to lose vision in an eye. Even with goggles, you wouldn't want a reflected beam hitting you in the eye.
 

Nordhavn

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On close ups I will be viewing via a Nikon 810D with a 16 stop ND with OD2+ (~450nm) in front of the sensor.
My eyes will be watching everything on a UP3218K high resolution display. :)
I need to borrow a Phantom 2512 to capture some ablation at super high (100K+) frame rates!
 

paul1598419

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You know where to get your hands on a camera that can take more than 100,000 frames/sec.? Not a cheap piece of equipment.
 

BobMc

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Nordhavn; like your "in country, right coast of the U-S-A" guess that means I'm on the "left coast". :crackup:
 
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BowtieGuy

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Bob, we won't hold that "left coast" thing against you (at least not too much)! :crackup:

Desoldering parts is all fine and good. Just no desodering the neighbors cat. :crackup: :)
Ah yes, good point, there's no cat desoldering allowed! ;);) :crackup:
 

BobMc

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Thanks Bowtie, I keep my hat pulled down and my eyes diverted so hopefully no one recognizes me. :crackup:

Gotta remember to leave the "cats" out of it. :D
 
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trussmonkey25

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Watch the runtime on these. I burned up my 5 watt silver running it too long while engraving with it. It woyld be nice to have a momentary button near the head. Yes it will engrave a rock. Since I did order a new module, i upped it for the 7 watt for the same host. I did have a syfy laser that was 7 watts. I since sold it since Eatan no longer supports it. It had a very wide divergence on the wide axis, but thin the other way
 

Nordhavn

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How long did you run it?
My handhelds never really get much ON time, especially the >1W diodes in flashlight hosts. The lens mount heats up quite rapidly. Maybe 20 seconds tops?

I know if you're burning something it's easy to get carried away and forget how long it's on for.

I've worked with LDs since the mid 1980s back when having visible (red) at room temperature was a wet dream! 780 was common due to the growth of compact disc players. VLDs had internal photodiodes to monitor their output and a decent driver incorporated this to prevent facet damage and/or instantaneous destruction due to runaway depending on environment.

My favorite index guided VLD was the Toshiba TLD9211. Quite good for its time.

Now we have 1W 520nm VLDs. How times have changed.

I miss my handheld HeNe devices. The power supplies were fun to play with too!
 

trussmonkey25

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I was running the 5 watt about three minuts....way too long. Before i knew it the host got hot. I shut it off but too late it died a painful death. I expect the new mudule in a week.
 

Nordhavn

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Ouch, that sucks.
I suppose runtime could be extended to infinity if the host was sunk to a decent sized thermoelectric cooler. I have a few melcor ones, a few of them cascaded and get ridiculously cold. They can handle about 50W.
 




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