1.25W 638nm - Lil' Dragon - in sinner's "MS-SSW stubby" host

[BowtieGuy]

LIL' DRAGON​

Hi everybody, this is my version of a 638nm build using sinner's beautiful "MS-SSW" host.
This host is his "stubby" version, and as everybody knows, being called stubby will probably lead to having a complex... so instead of using a pretty single mode diode,
I've installed a big, nasty Mitsubishi 500mW bad boy!

Hey, we all know that the Mits. isn't the prettiest dot/line on the wall, but nobody calls it "stubby" anymore!

Posing with my uranium marbles.


The components I've used for this build are as follows:

• sinner's "MS-SSW stubby" host
• Mitsubishi 638nm 500mW diode (ML501P73-02), and module W/G-2 lens (DTR)
• AMC 7135 1400mA 5 mode driver, modded to 1 mode (Fasttech)
• 26650 KingKong battery (Hakzaw)
• Copper discs for heatsinking driver (homemade)
• PVC battery sleeve (homemade)
• Arctic Alumina thermal epoxy

Components of MS-SSW as received from sinner- Host, pill, contact board, and tailcap.

Driver side of pill, all polished and pretty.

Driver side after modification to recess the AMC driver.
Pill was relieved 17mm x .5mm deep for -contact on driver,
and 12mm x 1mm deep for clearance of +contact on bottom of driver.

Battery contact side of pill with added -neg. attaching screw.

Pill/driver assy. with copper heatsink discs attached.

Pill with battery spring and positive wire attached.

Front of host with added "knock out" holes for easier pill removal, if needed.
Glad I put them in, I needed them!

Pill with modded knurling; needed for extra length in batt. compartment.

Finished laser, all assembled and ready to go.

Focus knob with polished brass insert at the aperture.

26650 KingKong battery with added PVC sleeve.

Turning the PVC sleeve in the lathe.
The machinists out there may see something a little odd with this pic.

Added labels showing battery direction. All my lasers get them.





AVERAGE AND MAXIMUM POWER MEASUREMENTS

Average mW reading (60 sec. run).

Maximum mW reading (60 sec. run).





A FEW INDOOR BEAMSHOTS

Entrance to the mouth of the dragon!

Looking back at the apeture.

Posing with Survival Laser's "EaglePair" glasses.



I know a lot of you are looking for the low divergance, high beam/dot quality diodes, but IMO, you've got to have a few monsters in your arsenal!

Sorry about some of the pics quality, all were taken with my phone. Also, will try and get some outdoor beamz!

Also, last but definitely not least: A big +1 to sinner for providing me with this wonderful host!!! :wave:

:thanks: for taking the time to look through all the pics.

Jeff

 

[gismo]

Looks like I should have spared the rep for this hot-bloody-served personal review of a damn cool looking stubbiness! Congrats to you and sinner's engineering skills (as usual!).

Nicely documented building process, sir. That death star garage shot is simply as tasty as devil's teasing flame. Red wavelength rebooted the proper way, hell yeah.

:gj:

 

[Shakenawake]

I don't recall seeing so much output from that type of diode, here's hoping it holds up for you:beer:

that's a lot of red, pretty sweet host too

 

[dubious speculation]

Extremely detailed build and a very thorough review,

that's one efficient diode you've got there :beer:

Turning the PVC sleeve in the lathe.
The machinists out there may see something a little odd with this pic.

You're turning the PVC pipe in a clockwise direction, most lathe work is done with the job turning anti-clockwise (IE, turning towards yourself). Am I right?

 

[BowtieGuy]

Thanks guys for the positive comments.

@gismo - This is my 1st sinner host, and it is sweet!

@Shakenawake - I hope it lasts awhile also, but I'll bet DTR is willing to sell me another one.

@will manners - I'm not sure how efficient it is, I'm driving it pretty hard though at 1400mA. I'll keep my fingers crossed!

 

[IsaacT]

That is sick! I am about to do a 638 build myself, how dpes she take to the 1400mA setting?

 

[dubious speculation]

@will manners - I'm not sure how efficient it is, I'm driving it pretty hard though at 1400mA. I'll keep my fingers crossed!

Well sometimes members are lucky to get over 1w when driving them at 1400ma,
I know fiddy got about 1.27w on his when he drove it at 1750ma

+rep when I can, cant at the moment on my phone

 

[IsaacT]

How much of a red shift are you getting at those powers?

 

[BowtieGuy]

Hey wannaburnstuff, it seems to be fine at that power. It just starts to get very slightly warm after a couple minutes.
I'm afraid to go too long with it at that high power!
As far as shift goes, it doesn't look bad, but I don't have much to compare it to.

 

[IsaacT]

Compared to your 650 lasers, how close in color are they? Also that MS-SSW is a great solid host for that build! +2.5 when I get to my computer.

 

[BowtieGuy]

To my poor old eyes, this mits. is definitely different from my 650nm pens. The power differential between them is so great that it's hard to be accurate, but that being said, I was pleasantly suprised at how much more orange the "MS-SSW" is while being driven this hard!

 

[trencheel303]

that's a nice laser, well done on the build (but what really caught my eye was the old car in the garage!).

 

[Tmack]

Wow 1.4a.now that's a lot of current. Glad everything is running strong. Very strong!
Once you go sinner!

 

[sinner]

I've been waiting for one of the stubbies to show up I simply loved how they came out! Nice and detailed review , and I like your simple modifications tailored to fit the 638's setup components +rep

 

[BowtieGuy]

Appreciate the kind words guys!

@ trencheel - Good eyes, that's my 67 Chevy Nova SS.

@Tmack - Hey T, so far so good.
I hear that..... you never go back!

@sinner - Thanks sinner, means a lot coming from the "host master".
Glad you don't mind the mods to your host. Appreciate the +rep!

BTW - I'm suprised that I havn't seen any others yet; as slow as I work,
I figured I'd be the last to get mine built.

 

[Thejoker301]

Very nice and clean build !

The output of this diode is pretty good. They usually do 950mW~1000mw at that current... So 1250mW is awesome :beer:

+1 from me