What did you mod today?

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MRsDNF
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Your ahead of me Of with the soldering. I’m sure it will all work ok.

 

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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The center leg is just a continuation of the ground tab on back, it’s not necessary to solder it.

Ouchyfoot
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Thanks Steve.
One chip gave me so much trouble. I couldn’t get continuity no matter how hard I tried, until I realized my DMM had timed out and turned itself off. Stupid.

Ouchyfoot
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DB Custom wrote:
The center leg is just a continuation of the ground tab on back, it’s not necessary to solder it.

That’s the problem. I never try to solder it, but it’s so close to the other two legs I always ended up bridging to it. Just cutting the darn thing off and getting it out of the way sure made it easier.
MRsDNF
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Ouchyfoot wrote:
Thanks Steve.
One chip gave me so much trouble. I couldn’t get continuity no matter how hard I tried, until I realized my DMM had timed out and turned itself off. Stupid.
Smile
If it makes you feel better I drilled my thumb today. Lucky it was the one that has no feeling. just bleeds. Innocent

 

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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I modified my brand new Trustfire TR-J20. Very successful resistor mod, I turned it from a 4285 lumen beasty into a black hole battle ax.

Fried the driver. Sad I calculated the 2 R620 and 1 1R5 sense resistors to be ~.2625 total resistance. Jumped right on it and removed the 3 originals soldered an R025 on there. Didn’t catch on til I volcano erupted a large MOSFET on the driver that I could even hear through the thick construction. Sad

Yep, I have DUMBA$$ tatooed on every bone in my body.

Ouchyfoot
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We do it for science and the enlightenment of all mankind.

MRsDNF
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I modded a ZY-T08 to run the batteries in series running through a five amp buck driver and XPL-HI led on copper MCPCB in a new pill made to suit.

 

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.

 

Ouchyfoot
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MRsDNF wrote:
I modded a ZY-T08 to run the batteries in series running through a five amp buck driver and XPL-HI led on copper MCPCB in a new pill made to suit.

Did you design a new battery contact plate for the head, or did you use relics “solder blob” technique?
MRsDNF
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I’m not sure what relics mod was.
It has a new switch end and a new end for the power to the driver. I used single sided breadboard but it would of been a lot better and easier with double sided breadboard.
I’ll post some pictures up tomorrow if I have time.

 

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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Since I so royally screwed up the TR-J20 yesterday evening, I woke up this morning with it heavy on my mind to fix it.

Now it makes 11,040 lumens on partially depleted Basen’s. Gotta get some new XM-L2 U4 1C’s on copper and replace those old XM-L’s on aluminum. Big Smile

Edit: So if I’m running 3 26650 Basen’s in series, and pulling 18.03A, isn’t that over 200 watts? Party

pilotdog68
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Did my first mod work in a couple of months. Finally added an illuminated tailcap to my most-used light, my Thorfire TG06.

Three Yellow/Gold LEDs, 1k bleeder, 50k pot.

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

giorgoskok
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Very Nice !!
Love that colour Smile

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DB Custom wrote:
I put a stacked resistor on an L2 and forgot about reflector clearance when soldering the leads back in, shorted it and fried the driver. I did have Kapton tape on the base of the reflector, but it tore. I’ll be happier with the Bistro driver anyway… Wink Still, was hoping to find out what the stock driver was capable of. Sad

Try putting a thin layer of arctic alumina epoxy on the base of the reflector. It’s much more secure than kapton tape.

DB Custom
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Well, I had managed to get an FET driver in the big TR-J20 and saw 11,400 lumens with Basen cells at 4V. I put a spring bypass on the big OEM spring up top and charged the cells only to blow emitters. Sad

So, back to the drawing board. This time I figured to go with something robust, and beautiful at the same time. Three 9V Cree MT-G2 under 35mm Illuminations Machines reflectors. Works like a charm! 11,419 lumens of the renowned MT-G2 illumination! Big Smile Edit: 17.64 Amps at the tail under the 3 Basens.

I’ll have to create a cover panel for the top of the reflectors to sit under the lens, but it works and looks decent enough as is…

giorgoskok
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Dale if you have some spare time , some pictures would be great Smile (But not a big deal if you can’t).

Cheers

DB Custom
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The TR-J20 is a beast of a light. VERY heavy construction, loads of cooling fins, it’s a chunk! It came with 12 XM-L emitters and was making 4285 lumens (I think that’s right) Then I messed it up. So I put an FET driver in it and saw 11,400 lumens. Then I messed it up again. A spring bypass and fresh charge on the Basen 26650’s blew the 1st emitter in each of 4 strings of 3. Too much! So, I started over and rebuilt it once again…

I happened to have on hand a few of the 9V variant of Cree’s MT-G2 fat boy. And I also happened to have on hand some of Illumination’s Machines diamond grid 35mm reflectors. So, I put them to good use in this light that is so very capable of handling it.

One of the reflectors twisted a bit in it’s bed of Arctic Alumina Thermal Adhesive, and I’m out now, so I’ll have to fix that later. The emitters are on 25mm MaxTOCH copper mcpcbs.

I notched corners for the substrate to ensure nothing shorted out, it just took a little bit in the aluminum reflectors to ensure all was well. Wink The 17mm FET driver is on an MTN board, has 12V low voltage protection, and is soldered directly to the positive via pad of the OEM driver board. I removed everything but this pad, literally even removed the traces on the board so all would be clear. Then I grounded it with a short piece of 16Ga Turnigy. There are short leads off the driver also of 16G, with the leads from the emitters at 22ga. I’d change this to 20ga but the joint is sealed in JB Weld, the driver is also heavily potted in JB Weld. I used a Vishay SIR404DP MOSFET on this one.

Another look with the bezel removed (reflectors are glued in, sorry)

I got lucky, the IM reflectors are just about the same height as the big aluminum 12 pot reflector that came out, the difference in height is due to the lack of centering rings now. To make up that difference, I merely cut a piece of the black 16ga Turnigy to use as a spacer inside the bezel, on top of the glass lens, and it works perfectly. If I don’t make a cover for the reflectors, I’ll simply solder the ends of the fat wire together and put a bit of silicone glue between the ends of the silicone insulation so it will be water tight. Wink

giorgoskok
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Wow! Thanks Dale…
Very nice work . Everything you touch , turns to gold…

DB Custom
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Oh No! Fraid not! I’ve messed this one up twice getting here, was actually going to leave it very close to stock for the run time. I just got it yesterday afternoon, couldn’t leave well enough alone. lol

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Just a few pictures of the parts used in the ZY-T08 to convert it to series.

The stock pill is on the left.

The switch has been replaced on both these items to known good ones. The stock set up is on the left of the modded ones.

This part sits in the battery tube at the head end. The battery tube was machined 2.5mm deeper to accommodate the thickness of the board.

A couple of thing went pair shape on this mod. The drivers low voltage kicks in at to high a voltage so a driver swap will be needed. The locating dowel holes for the end board drilled through to the outside of the battery tube. Whoops and finally if I was to do this mod again I would purchase double sided bread board. This would make the mod a lot quicker to do and look neater.

 

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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Very professional looking work there Steve, nice job!

MRsDNF
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Thanks Dale. I just need one of your built drivers now. Silly

 

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.

 

Ouchyfoot
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Great work as usual Steve. It’s been so long I can’t remember how I rewired the back end of mine.
I’m not sure what you mean by “breadboard”, but I use double sided copper clad circuit board. It’s really great to have for making contact boards and such. Pretty inexpensive at Aliexpress.

tru3s1lv3r
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Built my first triple from a convoy s2+. Got parts on the way to give it a nice lighted tail cap. May even baked it to see what kind of colors I can coax out of it.

Aspiring Fhashlightaholic!

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Dale that is Bad Azz!! Wink Steve that’s Ingenious! Shocked Great ideas! Where do you get double sided bread board at? That is very handy stuff to (must) have around, boy the creative juice’s are flowing today! Beer

KB1428 “Live Life WOT

MRsDNF
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The single sided I bought along time ago from Fasttech thinking it would come in handy one day after watching the likes of OL use it. Hopefully the following will be double sided.
https://www.fasttech.com/products/3810200

 

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.

 

KawiBoy1428
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Cool, thanks! Beer This stuff could make things a little easier! Wink Now just have to wait 2-3months to get it! Sad Angry Big Smile

KB1428 “Live Life WOT

EasyB
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I wanted an S2 pocket thrower. I dedomed a XP-G2 S4 2B from mtnelectronics and put it in an S2 with FET driver and smooth reflector also from mtnelectronics. With a 30Q at 4.13V, I got around 4.0A and 39,800cd measured at 6.05m with Tondaj LX-1010B. Big improvement over the stock S2 OP reflector at 23,400cd. In both cases I used the stock S2 centering ring and the focus seemed good on both.

Ouchyfoot
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I stacked another driver with four chips today. This one looks neat and tidy. I think I’m getting the hang of it. Before I started, I epoxied the chips on top nice and even with a dab of Arctic alumina. Pre tinning the little bent legs with flux and solder has the effect mascara does for lengthening lashes. After the chips were glued in place, most of the legs were already making contact. I barely had to touch them with the iron for a secure bridge.

MRsDNF
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And the current reading was, insert drum roll here, Question

 

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.

 

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