What did you mod today?

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Bucket
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I’ll PM you.

Dangit! I forgot to take a pic of my single point thread mill for oresome.

“If you don’t read the newspaper, you are uninformed; if you do read the newspaper, you are misinformed.”
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djozz
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Love to see all those nice mods, they keep coming! Smile

Further modded my Folomov 18650S today. Already swapped the 219D led for a Samsung LH351D 4000K 90CRI yesterday and now made it more suitable for bicycle lamp use.

First I was not happy with all the sharp edges on the outside, I was afraid that they will damage the pocket in my coat where the light will live. So the Folomov got the 180 grit sandpaper treatment until all the edges felt nice and smooth in the hand. I’m not neccessarily fond of a forced worn look but it came out nicer than I expected.

Then I really wanted a lighted tail because I tend to forget my bicycle lamp when switched off on my handlebar holder. A lighted tail makes me see it and not forget to take it off. (the bicycle lives on the street in front of my appartment).
I was not sure if it would work and not mess with the electronics or user interface but the stock light already features a bleeder resistor feeding batt+ back to the tail. So I did some creative soldering with a pink led and a 2.2kOhm resistor from batt- slaloming between two exposed pads to the ground ring. It appeared to work without affecting anything else.

The pillar in the clear silicon boot that I used did not reach far enough down into the tail to engage the e-switch nicely so I extended the switch button with a drop of Norland64. Now the switching is good.

The tail lighting is not so nice symmetrical as the ring tail lights that I have in most of my lights but I think it looks good and it will do the job.

ZozzV6
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Nice mod Djozz. Can’t wait to get my Folomov too and I will do the same.
Today I 3D printed a cap to my Emisar D4 tailcap. The design done a few days ago and yesterday made one but I improved it today. The current version has inside two 18mm diameter and 2mm thick magnets. it has holes in all five star arms that can fit microcord or lanyard. And it has some side edges for anti roll. I always wanted to put the D4 shorty on my keychain and it is more versatile with a magnetic tailcap like that. It fits on stock tailcap tightly so no glue used. The overall length with tis become 67mm with the 18350 tube.


ZozzV6
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If somevody want to print the above showed tailcap-cap here is the link for the file.

mihlit
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I need a little bit of advice… I’m not experienced in modding too much, so I have no idea what/why it happened.
I really like my SRT-9 nitecore, but I wanted something a little bit warmer. So I bought XHP50.2 CRI 80 4000K LED
Replacing it was without any problem, but the result is terrible. Light is warmer, but awful tint:

(light is warmer and tint shift is stronger, corona is ok, but I can’t get better result from cellphone, the light on the left is 2500 K)
Same result is without the glass, so no coating there. When I remove the reflector (OP), I get flood circle that is almost perfect white, maybe very little rosy tint, if you try really hard to find it. With original XPH50 5000K (my guess), there was not such problem. What’s going on here?

djozz
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What you see is the difference between XHP50 and XHP50.2. In the complete production line Cree used a new phosfor “system” that when the light is projected in a narrow beam, like we do in flashlights, produces a yellow to green corona around the hotspot. No one likes it, but the opinions go from not too bad to aweful.

The XHP50 gives a hotspot with donut hole in a smooth reflector while the XHP50.2 hardly has the donut hole, that is worth having that corona for many. But in the SRT9 the heavy OP reflector smoothes out the donut hole of the XHP50 so that is taken care of, but not the yellow corona of the 50.2.

mihlit
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I’ve investigated it a little bit more with spare XHP50.2 on mcpcb (ordered 2, to be safe). It produces pleasant white light in quite wide angle, but sides have very strong green-yellow tint. Without reflector, it’s ok, but when reflector is used, this side light is reflected forward and causes this awful color. So this is “normal” for all XHP50.2 (can’t imagine, anyone would buy that and be ok with it) or are both my emitters lemons?

I really hate this, it’s worse than how it looks on that photo. What are my options? Swapping it again for XHP50 (not .2) 4000 K?

djozz
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The led manufacturers make their leds for the lighting market, not for flashlights, apparently in general lighting fixtures (that generally produce flood light) this strong tint shift does not happen.

In your case going back to XHP50 could be a good idea. The 4000K 80CRI leds from Cree usually have a nice tint so that may be still an option? (no idea where to buy one though)

robo819
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with the “flip chip” technology a slice of the emitter is pretty easy as there are NO bond wires to worry about. You could try slicing with a good sharp razor blade , staying just above the phosphor layer. Then you cut straight down beside the main die and take off the outer layer of the phosphor to clean up the olive tint around the edges of the center of the beam.

Here is an example of the 70.2 in a ThruNite TC20 with a cool white 70.2 in it , but usually the end result is very similar with the 50.2 or the 70.2.

Before Slicing…

Not the greatest slice I ever done but here is the basic idea in the end…

Medium mode before slicing……

Medium mode after slicing…..

Click any link to see MY REVIEWS:

Maxtoch M24 Sniper / Maxtoch 2X Shooter (2016 factory dedomed) , 2X - XHP 70.2 / Maxtoch Xsword / M1 Archer *** ### ThruNite // Archer 2A V3 / Ti4T / TN4A HI / TH10 / TH20 / C2 Mini / TC12 V2 / T01 /  , neutron 2C V3 , TC20 / Catapult V6 / TC15 / TC15 CE *** ###  Olight // H2R Nova , S10R III / S30R III / H1 Nova / H1 R Nova / X7 Marauder , PL Mini ,  M2R warrior //// Orca T11 / Nitecore EC20 / BLF A6 / Custom Convoy C8 / Lixada Triple 3800LM / Lixada 1000LM / LuxStone X30 / Manker E02 / Manker E14 II /  ### Thorfire /// PF03PF04 , Upgraded PF04 , C8 , S-50 ,  VG-10 , VG25 , C8s , BL30 , TK4A  , S1 , VG15 S  , TK 18 //// ##WowTac// A4 , A1 (original) , A2 headlamp , A3 //// Acebeam L16 /// Massdrop (Lumintop) Brass EDC

chops728
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mihlit wrote:
I’ve investigated it a little bit more with spare XHP50.2 on mcpcb (ordered 2, to be safe). It produces pleasant white light in quite wide angle, but sides have very strong green-yellow tint. Without reflector, it’s ok, but when reflector is used, this side light is reflected forward and causes this awful color. So this is “normal” for all XHP50.2 (can’t imagine, anyone would buy that and be ok with it) or are both my emitters lemons?

I really hate this, it’s worse than how it looks on that photo. What are my options? Swapping it again for XHP50 (not .2) 4000 K?

If loosing some throw and about 5% lumens doesn’t bother you too much—- Try some DC Fix —-It works well in these cases

DB Custom
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Like robo819 shows above, dicing the phosphor off the substrate goes a long way towards eliminating the unwanted tint shift on the flip chip emitters.

When the dome is on it’s somewhat difficult to see where the die actually is, but once the dome is sliced off it’s much easier to see the actual die and make the vertical push cut down to the substrate, a flick outward then usually dispenses of the phosphor that is layered onto the substrate. I don’t do this so much for gaining throw as to rid the beam profile of the ugly tint shift in the aura. This is what I refer to as a slice and dice. Wink

Cereal_killer
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Finally finished my last GAW light!

Built these 2 drivers (all 0603 components and legs bent in on tiny85’s)

Stacked them together, wired the Nitecore stock drivers switches and switch LED to them with 32AWG wire (first pic is first driver of stack up going in and being wired then second driver set down on top and wired)

Dual drivers tested and running, just waiting on mcpcb glue to dry to assemble it!

Edit teaser pic for now, video of running tint mixer light coming later once it’s dark out.

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

Bucket
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Your solder-Fu is much greater than mine!

“If you don’t read the newspaper, you are uninformed; if you do read the newspaper, you are misinformed.”
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MRsDNF
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Orsm work Ck. I greatly admire your skills. I wish I would hurry up and grow up so I can be just like lots of members here. Smile

 

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                      "My man mousehole needs one too"

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djozz
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Nice C_k !

Your pics load slow, I think because you insert them full-res. You set them to display a screen percentage so it displays good, but the page still loads the full file sizes.

Geuzzz
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Great work CK!

I put a 4000k sst-20 in my D1.
It cleaned up the beam a bit, less tint shift and hcri.

Cereal_killer
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djozz wrote:
Nice C_k !

Thanks!

djozz wrote:

Your pics load slow, I think because you insert them full-res. You set them to display a screen percentage so it displays good, but the page still loads the full file sizes.

I’ve noticed that too, I host with imgur, how do I get downgraded images for posting?

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

MascaratumB
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Cereal_killer wrote:
I’ve noticed that too, I host with imgur, how do I get downgraded images for posting?

You can upload them in smaller resolution Wink
There are some resolution options on “Auto resize”. I normally upload mine in 1024×768 and they open fine!

Besides this: AWESOME work!!! I wish I knew the things you and many other people know, machining, soldering, electronics… Shocked
Great work!!! Thumbs Up

[REVIEWS] AMUTORCH: S3 / S3 vs 219c / AM30 / AX1 / VG10 /// SOFIRN: SF14 + SP10A / SP32A / SP10B /// NITEFOX: UT20 / ES10K / K3 /// ODEPRO: KL52 / B108 /// ACEBEAM: H20 / TK16 /// BLITZWOLF: BW-ET1 /// DQG: AA Slim Ti /// HC-LIGHTS: SS AAA /// XTAR: PB2 Charger /// OLIGHT: M2R Warrior /// WUBEN: TO10R / E05 / T70 / E10 /// ON THE ROAD: M1 / i3 / M3 Pro /// ROVYVON: A2 + A5R / E300S / A8 /// KLARUS: XT1C /// LUMINTOP: Tool AA V2.0 + Tool 25 /// LIVARNOLUX: 314791 /// SKILHUNT: M150

Tricks: 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 /// TIR Lenses: 1 / 2 /// Others: Biscotti 3 + 1*7135 / Triple TIR w/ XP-G2 ///// My Collection ///// My Review's Blog (PT)

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djozz
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I use flickr and although it is a pain to extract the links for use in inline images, they do offer links for a variety of smaller sizes of your uploaded picture.

I do not know how that can be done with imgur.

Enderman
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djozz wrote:
I use flickr and although it is a pain to extract the links for use in inline images, they do offer links for a variety of smaller sizes of your uploaded picture.

I do not know how that can be done with imgur.


You take the URL and add a letter at the end.

Thumbnail Suffix Thumbnail Name Thumbnail Size Keeps Image Proportions
s Small Square 90×90 No
b Big Square 160×160 No
t Small Thumbnail 160×160 Yes
m Medium Thumbnail 320×320 Yes
l Large Thumbnail 640×640 Yes
h Huge Thumbnail 1024×1024 Yes

Also I found ‘r’ makes 1456 x ___, also keeping proportion. So even bigger than the “huge thumbnail”
And I found another, ‘g’ does 728x___ with proportion.
b:

t:

r:

Geuzzz
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Gave my enogears some love.

Copper mcpcbs and hicri.

Left 219b sw40 9080, right 3000k sst-20.

djozz
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Nice emitter swaps Geuzzz !

thijsco19
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Changed the optic on the jaxman e2l.
It had a frosted wide optic and changed it to a 10507, narrow spot optic.

Actually a very nice and usable beam.

Geuzzz
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djozz wrote:
Nice emitter swaps Geuzzz !

Thnx. Verry nice and warm around the house lights now and muggle proof on nihm.

luminarium iaculator
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Never Ender beam Smile

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luminarium iaculator wrote:

Never Ender beam Smile

Big Smile
MRsDNF
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LOL Never Ender beam. I had top read this twice before it sunk in. Facepalm

 

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.

 

thijsco19
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“What did you mod today?”
I could better say; “what did I destroy today?”

Wanted to change the LEDs in de jaxman e2l for some LH351D’s.

First I desoldered the driver and wires.
Then I wanted to pry out the board.
I don’t know what type of glue they used but it doesn’t want to come out..
I lost my patience and went on a rampage, destroying the LEDs and led board.
And its still stuck in there. Angry
Looks like I’m going to order a host and let this one sit for a while.

djozz
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Ha Thijs, since the board is toast anyway, remove the driver and heat the head up to very very hot (not so hot as to decolour the ano) and see if the glue will give in.

thijsco19
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Definitely worth a try.

After heating it up some more the board finally came loose.

But the new board doesn’t fit, it’s too big..
So I’ll take the head to my work where I hopefully can machine the inside a little bit bigger.

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