What did you mod today?

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eas
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After frying a second cheap SST-40 on aluminum star from AliExpress, I decided an upgrade was in order, using DTP copper MCPCBs from Convoy and some SST-40 emitters from AliExpress.

I reflowed it directly over a little alcohol lamp (ethanol spiked with some isopropanol to make the flame a little more visible). It worked great, and I didn’t have to fumble with a lighter, or deal with condensed wax and soot from a candle.

clemence
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kiriba-ru wrote:
clemence wrote:

@Kiriba, mostly just unknown cast aluminum, 2024 Al, and for special case common copper.


I dont think that any grinding/laping operation is proper way to flatten soft metalls.
I would make a custom “punch” from hardened metall. Grind it flat and press down the surface you worry.

Thanks for the idea. But I’ll keep it for pre-production items not for finished flashlights I’m currently doing.
Indeed lapping method works better for brittle aluminum such as high silicone race piston (not Wiseco). Soft and “catchy” materials like high purity copper and 10xx aluminum are PITA to work with. Oftentimes, the coarse lapping grits stuck embedded in the polished object.
I guess I have to live with whatever finest finishes the endmill does.

- Clemence

pinkpanda3310
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Added a pocket clip to my little stripey

  

DB Custom
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PinkPanda, that little striped light looks pretty dang sharp!

FWIW, I tweaked the battery tube fitment on my SP-03 to ground against added brass screws that hold the driver in place. I now am seeing 7969.5 lumens from the three SST-40’s, that’s 2656.5 lumens for each emitter! I think that’s the closest I’ve ever gotten to a multi-emitter making nearly the same as a single emitter set-up… also indicates I’m getting over 9A to each emitter but on this light measuring the current isn’t so easy to do so I really don’t know exactly what it’s pulling. A lot, for sure!

I’ve got a variation on the UT-02 theme that I reworked to take an XP-L HI and TK’s Anduril firmware, I thought it was a pretty punchy little thrower at over 1700 lumens. Took it with me taking the trash to the road Thursday night and used the SP-03 for my primary light walking down the 300 yd driveway. Comparing the 1700 lumens to the SP-03’s well over 7000, well, there’s really no comparison! At over 600 yds even, the SP-03 just overwhelmed the smaller single die light. I was a bit surprised at that, but the 3 emitter reflector in the SP-03 is well done and delivers a nice spot of light, larger than most throwers yes but there’s so much power in it that it still reaches surprisingly far. Love it when it works out that way! Wink

Agro
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DB Custom wrote:
PinkPanda, that little striped light looks pretty dang sharp!

Personally I consider it one of the best looking lights around. I would be delighted to have a BLF special looking like that. Though it would look way better as a twisty. Wink
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pinkpanda3310
Guessing you have a lathe at home somewhere. Nice knurling Thumbs Up

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@Lumenzilla

I like your LED reflow technique with the birthday candle mounted on a coin. Party

pinkpanda3310
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Thanks for the ups Innocent

Yes, I have a lathe. No, there is not likely to be run of these (by anyone). The angular style pocket clip seems to fit the design of the light but both the clip and body are not very durable materials.

  

DB Custom
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I modified a 4.25” bar of 6061 T6 into a LOT of shavings! Silly It was only 1.75” long but still, the pile of shavings took most of 6 hours. What a mess I have! Silly

WillyD
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Made a copper spacer to upgrade to XHP35 HIs on my TM16GT. Still need to do some more filing on the MCPCBs before they will line up with the reflector.

pinkpanda3310
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DB Custom wrote:
I modified a 4.25” bar of 6061 T6 into a LOT of shavings! Silly It was only 1.75” long but still, the pile of shavings took most of 6 hours. What a mess I have! Silly

Lol, I’ve made a flying birds nest before. Made me jump Big Smile Facepalm

  

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Agro wrote:
DB Custom wrote:
PinkPanda, that little striped light looks pretty dang sharp!

Personally I consider it one of the best looking lights around. I would be delighted to have a BLF special looking like that. Though it would look way better as a twisty. Wink

+1 on the others. That is one real nice looking torch. Beer

 

djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

DB Custom
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WillyD, nice mod on the TM16, if I recall correctly doing similar to mine produced some 7000+ lumens and a nice beam profile. Too bad I had to sell it…

CNCman
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WillyD
Sweet mod, looking fwd to see it completed. Beer

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A C8 host was eating dust on a shelf when djozz offered to do a groupbuy for some ZWB2 filters . Well, he did not have to twist my arm to get on-board. Plus I ordered a 3rd-gen LG UV-emitter from Simon. From previous tweaking on other C*‘s I still had a C8 size smooth XR reflctor from Fasttech. To sum it up: I used a LD-1 driver from member led4power in DD-mode. There was a snag, however. The reflector was about 1mm shorter than a regular C8 reflector.
So I made myself a shim All I needed was one copper Canadian cent, a lapping stone, a small round file and an ounce of elbow-grease. When that was over I could assemble the lot, and this was the result.
A Convoy C8 Black Edition!
It has turned out to be a real (UV) thrower, but I am not able (yet) to show it to you, because White Walls Won’t Work Sad

You are a flashaholic if you are forced to come out of the closet, to make room for more flashlights.

WillyD
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DB Custom wrote:
WillyD, nice mod on the TM16, if I recall correctly doing similar to mine produced some 7000+ lumens and a nice beam profile. Too bad I had to sell it…

Appreciate all the pointers you provided as well. I sort of wish I would have gone with 26mm boards as the pads would have been further away from the reflector openings. If I do get this to work, I’ll be using a lot of Kapton tape. As soon as I get my Texas_Ace lumen meter, I’ll get a measurement Thumbs Up

CNCman wrote:
WillyD
Sweet mod, looking fwd to see it completed. Beer

Thanks. Honestly, I should have had this done by now, but I keep putting it off. A little more filing on the MCPCBs and on the reflector and she’s ready to wire up.

Henk4U2 wrote:
A Convoy C8 Black Edition!

No no…you mean it’s a ‘Murdered Out’ C8 Silly Looks pretty cool!!
The Last Katun
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Today I modified an X8 (trustfire X8, but without the “trustfire” trademark);

I replaced the LED, from XML to XHP50 and replacing the drive with this one. (one mode version)

I left the original SMO reflector and to eliminate the central black hole I sanded the front glass, in its perimeter (as you can see in the picture) the black hole disappeared. I feel satisfied.
I also changed the button with a forward; I can use it for research and for signal

Now add these two photos: the first is the light of the X8 at a distance of 6 meters, the exposure is automatic; the second I obscured in “post-production” a little to highlight the center

the shadows are due to the presence of an arched door.

djozz
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^ good thinking!, that is a innovative way to solve the donut hole problem without loosing too much light!

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Yeah, good idea. The black hole is completely gone? Or still slightly visible but much better? Could maybe a ring of DC-Fix do the same job?

The Last Katun
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Mike C wrote:
Yeah, good idea. The black hole is completely gone? Or still slightly visible but much better? Could maybe a ring of DC-Fix do the same job?

Before emerying the glass I have tried with a plastic art ring, adhesive, semitransparent and it does the same thing. I have chosen to emery because the plastic was absorbing heat

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Today I got Anduril running on my BLF GT. This mostly involved adding pin7 voltage support, adding GT buck driver support, and doing a bit of calibration.

So now it runs on D4, Q8, FW3A, and GT.

As sort of a side effect, I think the GT’s moon level is lower now… not that that matters on a thrower.

djozz
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^ Hmm, it will never be the furthest throwing moon….

Today I swapped in 4 Samsung LH351D leds (4000K 90+CRI, obtained from member AEDe) into a Q8, and while at it swapped in pretty switch leds.

Compared to stock the beam looks good,the spotsize is virtually the same. As in my other LH351D builds the tint is best at full power, and becomes a bit yellower when ramped down and even slightly greenish at lowest powerlevels. But nothing serious, one (as in: the tint-snobs) gets more and more sensitive to tint over time. While not whitewallhunting the illumination it gives is plainly wonderful.

With phosfor-bronze tailsprings and fresh 30Q’s the light draws at max around 18 amps, the output at 30 seconds is 4600 lumen (4750 at switch-on). Very nice for leds of this light quality!

(left stock Q8, right with LH351D)

Edit: some Q8 lights came with AR-coated lens, I tried one on this modded Q8 and it is not good for the tint: it takes away rosiness + adds more yellow. Unlike CRI, tint is very easily influenced by optics and coatings.

contactcr
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No spring bypass!?

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djozz wrote:
Compared to stock the beam looks good,the spotsize is virtually the same. As in my other LH351D builds the tint is best at full power, and becomes a bit yellower when ramped down and even slightly greenish at lowest powerlevels. But nothing serious, one (as in: the tint-snobs) gets more and more sensitive to tint over time. While not whitewallhunting the illumination it gives is plainly wonderful.

So in a light that in general pulls less current (TK05, SP10, etc.), it’d probably be better to use a B instead of D, for the higher current density (smaller chip), eh?

I was thinking that initially, but hearing about it in this case kinda solidifies it for me.

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

djozz
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contactcr wrote:
No spring bypass!?

Springs were replaced with thick phosfor-bronze springs which have one-third the resistance of a steel spring but the resistance is not as low as a by-passed spring.
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@djozz, why did you have to do the mod before I did?

You should’ve waited until I did mine Thumbs Up

Also, I have the Kaidomain AR lens, and there seems to be a reverse tint shift happening. The tint actually gets better with the Kaidomain AR lens.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

djozz
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BlueSwordM wrote:
@djozz, why did you have to do the mod before I did?

You should’ve waited until I did mine Thumbs Up

Also, I have the Kaidomain AR lens, and there seems to be a reverse tint shift happening. The tint actually gets better with the Kaidomain AR lens.


Sorry Innocent
That is good to know about the KD lens, I will have to get one then.
DB Custom
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Recently built a parts-bin light, or as a fellow member called the Light-on-Cash build as it was sort of inspired by the Johnny Cash song One Piece At A Time.

This was built using various bits I’ve had for years. Courui D01 head and lens, Convoy L6 reflector, Solarforce M8 pill with a Convoy C8 battery tube bored out for a Sanyo 20700A cell. I made the tail cap and head adapter to make it all come together. Driver is an old FET of Wight’s design with a simple L-M-H UI. An SIR800DP was used for high power, it pulls 8.91A at the tail for 2028 lumens out the front. Low is 100 lumens with Med a little over 600 if I recall correctly. (not at my computer, wife is still sleeping)

It was a bit of a challenge getting the M8 pill opened and consequently using it without modification but I managed. Actually built it to use an IlluminationMachines faceted reflector but ended up liking the L6 reflector better in it. Still need to make some adjustments to optimize that change.

contactcr
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Put a new XHP70.2 in my Convoy M1 and proceeded to drop the bezel and lens and it broke in two. Then, I was looking at my Emisar D1 like, hmm how close is this lens to fitting… Proceed to remove the bezel, the lens slides off the top and this one now has 2 chips in the lens. Not a successful modding day.

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Recieved the LD-B4 and luxeon V together with the ILC-1 illuminated tailcap module from led4power to mod it in my convoy L2.
Haven’t modded any light for a while and I totally forgot how small everything is…

As I already thought the ILC-1 module doesn’t fit right in the L2 tailcap. It is the correct diameter but the L2 uses a forward clicky and those are longer than a reverse clicky that’s being used inside the module.

So I needed to make a spacer to fill out the gap. First I wanted to 3d print a clear spacer to go on top but clear filament turns a bit frosted when printed.
That leaves me with just normal PLA filament. (print quality is not very good on these small parts, still figuring everything out and fine tuning the settings)

Luckily I had some spare tailswitch pcb’s laying around to make a separate contact board so I could make the spacer on the backside.

Here you see the module inside the spacer:

Backside:

The space tailswitch pcb:

Illuminated tailcap module ready:

Installed it inside the tailcap:

Soldered the spring on the driver and bypassed it:

Led installed and wires added:

And illuminated tailcap works! This is actually the first illuminated tailcap I have. Really liking it!

This convoy L2 had previously a XPL-HI and fet driver in it. The tailcap current was, if I remember correctly, around 4A.
It is now around 5.5A. Not as high as I had hoped as I used the 9A version of the LD-B4 so I was expecting some higher current.
I use a Basen 4500 mAh 26650 in it, they supposed to be decent performers. Even with a other keeppower 26650 and some other 18650 cells I didn’t get any higher than 5A.

Nevertheless. I really Love the 4000K tint of the luxeon V!!

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