D.I.Y. Illuminated tailcap

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Keisari
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pilotdog68 wrote:
You would have to take off the tailcap and use your finger or pencil or something to flip the switch. It would only affect the tail led's, the regular light would function normally. I'm not completely sure it will work at all, and wouldn't really serve any purpose if the flashlight has tailcap lockout anyways.
If I understood the idea correctly, this would also make sense in some lights with lockout possibility. This would just disable the standby signal light and still have the light ready to use and not potentially about to spontaneously fall apart. Using tailcap lockout is sort of the same as removing batteries and storing them in a separate case, excuse my exaggeration here.

Antenne wrote:
"dip switch in series with the leak resistor" - that would make it more driver dependable - there are drivers with some leakage current on their own - you would only shut up the resistor part. The switch should be better placed at (in) the tailcap (and is better accessible there).

Agreed. As this sort of locator light circuit goes through both the driver and tailcap boards, and some drivers may be ready to use in stock config, it makes sense to put any hypothetical switch in the tailcap. Also the accessibility issue would be kinda critical on some hosts. The tailcap is most of the time easily accessible vs. the driver board or other front contact board that often is not.

pyro1son
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Just had my first go at making one of these 17mm single led version for now will give the 20mm version a go later in the week.
120 ohm bleeder on driver and two 10k ohm parallel on the tail.

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pilotdog68
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Cool. I was wondering when other people would start trying it. Beer

So far I have used 650ohm 560ohm on everything for my bleeder, then anywhere from 2k to 22k for the led resistor.

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

pyro1son
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Only just got the boards today. 120 ohm was the only one I had below 1kohm area.

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pilotdog68
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pyro1son wrote:
Only just got the boards today. 120 ohm was the only one I had below 1kohm area.

Yeah it’s a shame Oshpark takes so long sometimes. It really slows down development on things like this.

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

pyro1son
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Yeh true, but I can’t really complain no min order and free delivery to the UK Smile

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pilotdog68
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pyro1son wrote:
Yeh true, but I can’t really complain no min order and free delivery to the UK Smile

Exactly. I just can’t wait till 3D printers are common household appliances

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

Icarus
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I just ordered my pcb's so I think it will still take some time before I can start building my first switch. 

BTW, did you ever try a GITD switch boot? 

pilotdog68
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I never tried a GITD boot, mainly because I don’t really want to Silly . Part of my motivation for doing this was so that I wouldn’t have to use those green switch boots anymore. :Sp

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

pilotdog68
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At least from my short experimentation on adding diodes in series, it doesn’t appear to work as I/we had hoped. It seems to act like a 2nd limiting resistor, so as the battery volatage goes down, to led gets dimmer and dimmer. It doesn’t just shut off abruptly when the battery drops below a certain voltage. However, it is very obvious to see the effect, so you can somewhat judge the charge level of your battery by how bright the tail led is. On my S8, it is set up so the led is almost invisible once the battery reaches 3.1v, and completely stops drawing current between 2.9 and 3v.

Also, the little dip switches I ordered were delivered yesterday, so I’m going to see soon if they are small enough to add to the board.

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

Kloepper Knife Works
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Completed my first one today after picking up some 560 ohm resistors from Radio Shack. I went with 2 blue LED’s and a 6.8k limiting resistor. It measures less than .25mA so nice and efficient. I might put a lower value in to up the brightness a bit, it’s not a bedside light so I think I’d appreciate it just a bit brighter. This went on my 1504 with the reduced nubs with an XP-G2 S3 3C measured at 3.3 amps at the tail. The picture is a pretty good representation of the brightness in a dark room.

Kloepper Knife Works
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I’d also like to note that I used the 6A forward clicky Ebay switch for this. It fits once you bend the legs underneath the switch to solder to the board.

I had to turn about 1/4” off the base of the aluminum threaded retaining ring to get it to seat down far enough when assembled. I added a jumper wire and soldered the spring and jumper directly to the brass button.

L4M4
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I’m sure it has been mentioned in this thread, but I can’t find it…

Where do I get the round clear spacers ->

And which type of diode should I use?

Currently I don’t use one and one led is a lot brighter than the other Sad

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Are you using the dual-led pcb? Are the 2 led’s identical to each other? I don’t see a reason why they wouldn’t be the same brightness, because the two led pads are parallel to each other, they should be getting the exact same current. On my most recent one I didn’t use a separate diode at all, I just bridged the D1 pads with some copper braid.

I bought the spacers at Home Depot. They should be available at most hardware stores, it is a 5/16” Nylon Washer.

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

Kloepper Knife Works
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Number 2 done. Tail end of a triple XP-L DD S6. The picture makes it look brighter than it really is. I used a 2.2k limiting resistor, still less than 1mA draw.

pilotdog68
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looking good KKW. I’ve found that the resistor value can vary quite dramatically. In my blue and red ones I used 4.7k, and in a green one I had to use 22k to get it dim enough for bedside use.

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

Kloepper Knife Works
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I carry this one, so I wanted it bright enough to show off even in a bright room.

pilotdog68
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Kloepper Knife Works wrote:
I carry this one, so I wanted it bright enough to show off even in a bright room.

lol right? My red one is dim because it’s by my bed 24/7, but the blue one is brighter to get a little more wow factor.

The next one I do will be an S6 with Purple/UV colored led’s

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

L4M4
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Yep, the 2 LED Version.

I don’t know, what it was, but I desoldered the switch and resoldered it (no obvious mistake) and now it works.

Thanks to my lathe I have made a plexy spacer from 2mm material.

FANTASTIC, really!
I have ordered 100 UV LEDs (and 100 each in green, red, blue, orange and white, all 0805), they light up GITD Material (what I use on 90% of my lights… yet :D), so I guess this will look nice.
But I now have 40 of the clear tailcaps and 15 PCBs (9*17mm, 6*20mm) and 16 switches are on their way (received 2 today).
So, I have a lot of work to do Big Smile

The problem is, that I have my flashlights in the room where I sleep – so I will have to make a plan, which lights I mod…

pilotdog68
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Wow, you jumped in with both feet!

Which switches did you buy? I have some omten 1217, but I’ve been using omten 1288 because they block less light. It gives a more even appearance through the clear boots, but probably won’t matter with the GITD boots.

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

L4M4
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Could someone make a 18&19mm 2-LED version?

I have some lights that need a bigger PCB (Convoy C8, M2 – 18mm)…

And maybe a RGB Version with a slow color-fade Big Smile

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Haven’t been able to get hold of any nylon washers at the moment so have just drilled holes for the mean time.

Gives an odd affect. Using the 20mm board with dual LEDs.

More red in real life.

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L4M4 wrote:
Could someone make a 18&19mm 2-LED version?

I have some lights that need a bigger PCB (Convoy C8, M2 – 18mm)…

And maybe a RGB Version with a slow color-fade Big Smile

What size does your M2 need? I used a 17mm one in mine. I am planning on making a dual-led 17mm board, I’ve just been a little busy lately.

Check these out. I bought some awhile ago, I need to work them into a light soon.

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

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The M2 needs 18mm. It wouldn’t be a Problem to use the 17mm, but I want it to fit perfectly Silly

I habe some of these selfchanging RGB Leds, but I don’t think that they would make a nice effect, the colors change too quickly, so you basivally only habe red blue and green….

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If you quickly need cheap SMD LEDs, go for the seller I linked in #169 – 9 days for a 12$ order to germany.

I have ordered some parts made out of original Plexyglas – laser’d out of 2mm material by an ebay seller for 1€/each.
15 pieces, 17, 18, 19, 20, 21mm – 3pcs each
It’s likely that I need the smaller ones more often – but hey, I have a lathe and some M8 bolts with nuts, so that’s only a small problem…


Each with a 7.9mm hole which fits perfectly.
WIth Plexy you can go even lower with the current.

I also got the 0805 LEDs – UV doesn’t work, I have used a 1.2k resistor and a 510 Ohm bleeder – but it’s extremely hard to see, so no “lit from inside”-GITD Sad
So let’s see how the others look.

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Good idea with the plexi! is the middle hole 8mm?

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

pilotdog68
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Now you have me thinking about different spacers. I wonder if using colored acrylic would help spread the light/color better than the frosted nylon I was using originally?

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

pyro1son
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I need some of them plexiglass rings Shocked

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pilotdog68
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These are a little thick, but cool looking

http://www.ebay.com/itm/100-3-4-x1-8-TATOO-WASHER-NEON-GREEN-Center-HOLE-Acrylic-Circle-Disc-Plexiglass-/391123873656?pt=LH_DefaultDomain_0&hash=item5b10ccaf78#ht_940wt_954

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

pilotdog68
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pyro1son wrote:
I need some of them plexiglass rings Shocked

if you need a whole bunch, check these out

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

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

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