The Sky-Ray King Thrower Mod........ It's Finished! Beam shots are up

107 posts / 0 new
Last post
Old-Lumens
Old-Lumens's picture
Offline
Last seen: 5 years 1 month ago
Joined: 11/04/2011 - 11:39
Posts: 7478
Location: Tyler, TX, USA

comfychair wrote:

Wait... how do you run a single 6v LED off two 105Cs?

Master/slave and in parallel.

My PayPal address: oldlumens (insert the @ sign here) gmail.com

My YouTube Flashlight Video Channel

The BLF Modding Links Thread 

http://imageshack.com/a/img922/1374/jQ2wdL.jpg

 

gords1001
gords1001's picture
Offline
Last seen: 3 years 7 months ago
Joined: 05/07/2012 - 14:02
Posts: 5276
Location: wigan england

I’m not seeing how you can get 6v out of a nanjg and 4 nimh? seems to me your 1.2v short before driver losses.

Despite feeling xm-l tedium, my vote is for an xm-l and my gut reaction is xp-g2 3d tbh….

Old-Lumens
Old-Lumens's picture
Offline
Last seen: 5 years 1 month ago
Joined: 11/04/2011 - 11:39
Posts: 7478
Location: Tyler, TX, USA

ImA4Wheelr wrote:
Sounds even more interesting. Where are you getting your raw mgt2 emitters? Please tell.
It's just removed from a star. The leds came from cutter, sent to me by an AU member, who shall remain nameless, unless he wishes to name himself.Wink

My PayPal address: oldlumens (insert the @ sign here) gmail.com

My YouTube Flashlight Video Channel

The BLF Modding Links Thread 

http://imageshack.com/a/img922/1374/jQ2wdL.jpg

 

gords1001
gords1001's picture
Offline
Last seen: 3 years 7 months ago
Joined: 05/07/2012 - 14:02
Posts: 5276
Location: wigan england

I’d rather see the mtg-2/reflector in a d sized mag that can give an easy 8.4v, much simpler driver options I feel. :bigsmile:

Old-Lumens
Old-Lumens's picture
Offline
Last seen: 5 years 1 month ago
Joined: 11/04/2011 - 11:39
Posts: 7478
Location: Tyler, TX, USA

Per another knowledgeable member:

Two AMC Drivers in Master/Slave

One one AMC Driver, you’d have to remove the SO-8 Chip (ATTINY13A).

Both AMC Board BAT+ connected to BAT+
Both AMC Board BAT- connected to BAT-
Solder wire from a VDD Pin of an AMC7135 of the Master board to a VDD Pin of the Slave board
LED+ to BAT+ or to Both AMC Board LED+ Connections
LED- to LED- on both Master and Slave board.

Edit, I put up incorrect information on this. This would only increase the amperage.

My PayPal address: oldlumens (insert the @ sign here) gmail.com

My YouTube Flashlight Video Channel

The BLF Modding Links Thread 

http://imageshack.com/a/img922/1374/jQ2wdL.jpg

 

comfychair
comfychair's picture
Offline
Last seen: 5 years 8 months ago
Joined: 01/12/2013 - 05:39
Posts: 6198

I'm sure not everyone saw the thread but Intl-Outdoor will soon be stocking the MT-G2s and their house-brand copper MCPCBs for them as well.

ImA4Wheelr
Offline
Last seen: 4 months 2 weeks ago
Joined: 02/03/2013 - 14:51
Posts: 7935
Location: SC

Man, that just gave me an idea. Couldn’t two drivers be run in series off the batteries to half the voltage to each. Example: Positive from battery to first driver’s positive, negative from first driver to positive of second driver, and negative from second driver to battery negative. Then parallel the drivers to the LED with one being a master.

comfychair
comfychair's picture
Offline
Last seen: 5 years 8 months ago
Joined: 01/12/2013 - 05:39
Posts: 6198

Old-Lumens wrote:

Per another knowledgeable member:

Two AMC Drivers in Master/Slave

One one AMC Driver, you’d have to remove the SO-8 Chip (ATTINY13A).

Both AMC Board BAT+ connected to BAT+
Both AMC Board BAT- connected to BAT-
Solder wire from a VDD Pin of an AMC7135 of the Master board to a VDD Pin of the Slave board
LED+ to BAT+ or to Both AMC Board LED+ Connections
LED- to LED- on both Master and Slave board.

That would give you double the current, but not the voltage needed to make it light up. Unless there's some other trick involved I'm not aware of.

You'd have to have a supply voltage higher than the LED's Vf, and a way to keep the MCU from frying at that higher voltage (which is possible), but you ain't gonna get there with only four NiMH.

ImA4Wheelr
Offline
Last seen: 4 months 2 weeks ago
Joined: 02/03/2013 - 14:51
Posts: 7935
Location: SC

comfychair’s response to another post also answered mine. Serial drivers would not provide enough voltage. Like above, the current would double, but not the voltage. So, while the drivers would not fry, the emitter would not light up.

Old-Lumens
Old-Lumens's picture
Offline
Last seen: 5 years 1 month ago
Joined: 11/04/2011 - 11:39
Posts: 7478
Location: Tyler, TX, USA

The output to the LED is parallel. led+ and led+ together, to the led. led- and led- together to the led. This gives you twice the voltage. It's a parallel circuit to the led. It's just like two batteries in parallel. + to + and - to - gives you parallel, that increases the voltage. Series is + to - and increases the amperage. Actually this set-up increases both, as it really is series parallel. The removal of the slave controller and the wire from master VDD to slave VDD on the 7135 circuit produces control to all 7135 chips.

Am I missing something here? I don't think so, but I could be wrong, (like just about every day).

EDIT: Yes, I am wrong. Completely wrong and worst of all I still don't get it.

My PayPal address: oldlumens (insert the @ sign here) gmail.com

My YouTube Flashlight Video Channel

The BLF Modding Links Thread 

http://imageshack.com/a/img922/1374/jQ2wdL.jpg

 

ImA4Wheelr
Offline
Last seen: 4 months 2 weeks ago
Joined: 02/03/2013 - 14:51
Posts: 7935
Location: SC

I believe parallel loads doubles the current, but the voltage stays the same (excluding battery sag).

Serial batteries doubles the voltage. Serial loads split the voltage but the current stays the same.

EDIT: Where are you getting your bare mgt2 emitters?

EDIT2: Opps. Thank you for the answer above. I’m a dumb a__.

comfychair
comfychair's picture
Offline
Last seen: 5 years 8 months ago
Joined: 01/12/2013 - 05:39
Posts: 6198

Nope, that's backwards. Parallel doubles the amperage, series doubles the voltage, and down to the way 7135s regulate only on the negative path you can't connect them in series. Too bad they don't work like DC power supplies, huh?

You'll have to have either the supply voltage above the LED's Vf (2s2p lithiums at 8.4v) (and then, either use a buck driver, or use a work-around to keep the 105C's MCU alive at the higher voltage and try to get the 7135s to burn off the excess ~2.5v), OR, use a boost driver if you stick with 4s NiMH.

texaspyro
Offline
Last seen: 2 years 6 months ago
Joined: 04/29/2011 - 12:43
Posts: 4593
Old-Lumens wrote:
It’s just like two batteries in parallel. + to + and – to – gives you parallel, that increases the voltage. Series is + to – and increases the amperage.

Nope. that’s bass ackwards…

Old-Lumens
Old-Lumens's picture
Offline
Last seen: 5 years 1 month ago
Joined: 11/04/2011 - 11:39
Posts: 7478
Location: Tyler, TX, USA

texaspyro wrote:
Old-Lumens wrote:
It's just like two batteries in parallel. + to + and - to - gives you parallel, that increases the voltage. Series is + to - and increases the amperage.
Nope. that's bass ackwards...
Well, that is ass backwards. Makes me feel like the fool that I am. I feel like slinking away after this bit of stupidity.Embarassed My apologies for not knowing my arse from a ...........

My PayPal address: oldlumens (insert the @ sign here) gmail.com

My YouTube Flashlight Video Channel

The BLF Modding Links Thread 

http://imageshack.com/a/img922/1374/jQ2wdL.jpg

 

Rufusbduck
Rufusbduck's picture
Offline
Last seen: 9 months 1 week ago
Joined: 04/04/2012 - 15:34
Posts: 10389
Location: Golden state

It’s pretty well documented by me and one or two others that 6V is not a problem for the 7135 chips if the led is dropping most of the voltage. Then all you need is a voltage regulator IC to maintain 3-5V to the Attiny mcu. That done, master/slave works fine. I personally have run up to 12V with 3 series XML this way. For 6V input I would use an LD2981 5V chip like this.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

DB Custom
DB Custom's picture
Offline
Last seen: 3 weeks 3 days ago
Joined: 01/13/2013 - 22:28
Posts: 20733
Location: Heart of Texas

I have no idea what you just said, was that Greek or what? But I am very glad you know how to move those things around and get to where you’re going! Smile

Gonna have to have another Black Russian after that one….

Chicago X
Chicago X's picture
Offline
Last seen: 8 years 7 months ago
Joined: 07/22/2011 - 16:13
Posts: 4013
Location: See Name

Easy there, sparky...

http://wardogsmakingithome.org/index.html

War Dogs, Making it Home - Rescue Dogs for Returning Vets

ImA4Wheelr
Offline
Last seen: 4 months 2 weeks ago
Joined: 02/03/2013 - 14:51
Posts: 7935
Location: SC

In this thread, Rufusbduck does some pretty extensive experimentation with a Nanjg 105c type driver. In post 43, 4th picture down, there is an actual example of what he is talking about above. Please correct me if I’m wrong Rufusbduck.

http://budgetlightforum.com/node/11259

Old-Lumens
Old-Lumens's picture
Offline
Last seen: 5 years 1 month ago
Joined: 11/04/2011 - 11:39
Posts: 7478
Location: Tyler, TX, USA

Well, after a bad session with this light, I have decided to put it on hold. This may be a real Sky Ray, but after what I have seen tonight, it probably is a poor clone. The head to body is a mismatch. If a single reflector is put in the head, it is not centered. It is off center which means when you turn the head, the led hole would look like it is turning in an oval. If you have ever seen an off center reflector, you will understand what I am trying to say. Maybe not the best explanation, but anyhow either the head or body was not cut true.  You could never take the head off, without taking the reflector out first. If it were turned off, it would wipe out the led dome.     With the stock 3-up, it wouldn't matter, since the reflector and LEDs are stationary to each other, but with a single reflector it shows up big time.  

Also the threads are super sloppy and you can almost pull the head right off the body because the threads are so bad. It's fairly depressing to see the lack of quality there and compared to the Fandyfire I had, it's just poorly machined, plain and simple.

I put it up till I figure out if I bother with it or maybe get another fandyfire to use as a host. It's a real shame.

My PayPal address: oldlumens (insert the @ sign here) gmail.com

My YouTube Flashlight Video Channel

The BLF Modding Links Thread 

http://imageshack.com/a/img922/1374/jQ2wdL.jpg

 

MRsDNF
MRsDNF's picture
Offline
Last seen: 5 months 2 weeks ago
Joined: 12/22/2011 - 21:18
Posts: 13473
Location: A light beam away from the missus in the land of Aus.

One word, BUGGER.

 

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.

 

comfychair
comfychair's picture
Offline
Last seen: 5 years 8 months ago
Joined: 01/12/2013 - 05:39
Posts: 6198

Yep, I see the same things on the one I just got. The OD of the battery tube o-ring is 1.980", the ID of the o-ring bore in the head is 1.988", it doesn't even touch. Also they've switched to a much thinner lens and make up for it with a super fat o-ring to use as a spacer. The crown bezel is aluminum, instead of stainless.

This isn't about fake-vs.-genuine, as all of them are copies. But I think they've finally crossed that line where the lower price no longer makes the flaws tolerable. Flaws that don't affect the function are one thing, but o-rings that don't actually seal are kinda a deal breaker. Why didn't they just omit the o-rings? They could have saved another .00031 cents per unit.

Anyone know of a source for a better quality BLACK SRK?

ImA4Wheelr
Offline
Last seen: 4 months 2 weeks ago
Joined: 02/03/2013 - 14:51
Posts: 7935
Location: SC

Bummer. Sorry to hear about that. Sounds like it would be best to keep the original driver now so that you can easily reconstitute the light in to its original form. Would it be improper for any of us that feel compelled to “opt out” of the giveaway so that you could do that? I hope I don’t offend you by asking this. I am totally asking with the highest respect. You unselfishly give so much to this forum.

RaceR86
RaceR86's picture
Offline
Last seen: 5 years 11 months ago
Joined: 02/22/2012 - 08:32
Posts: 3777
Location: Norway

Its a shame about the quality.
Old-Lumens and Comfychair, where did you get black SRK come from?
If its from FT, please give them a notice, they seem to care about such matters and will hopefully find a better source.

If color is not an issue. Gold SRK can currently be bought for 32$ from Wallbuys (sale + discount code). I have yet to hear people complain about such matters on them. But you never know..
Thread about the sale here.

BLF LED database – collaboration spreadsheet and latest news about where to buy LEDs
http://budgetlightforum.com/node/19342

comfychair
comfychair's picture
Offline
Last seen: 5 years 8 months ago
Joined: 01/12/2013 - 05:39
Posts: 6198

http://www.fasttech.com/product/1234001

Looks great in the pics, unfortunately the one they're shipping is completely different.

Old-Lumens
Old-Lumens's picture
Offline
Last seen: 5 years 1 month ago
Joined: 11/04/2011 - 11:39
Posts: 7478
Location: Tyler, TX, USA

CNQG was the original seller of the black SRK and I believe those were very good quality.

I'm not going to bother with Fasttech, since I'm never going to ship it back (costly) and since I have torn it down for modding, they can't really do much. I accepted it initially and tore it down. I should have inspected it better first.

I imagine I will pick it up again sometime and finish it, but I would probably have to center the led with the reflector, mark reflector and head for position and Nitecore the head on the body, so no one can twist it off That way it will look centered, even though it's not. That would mean loading batteries from the tail.

My PayPal address: oldlumens (insert the @ sign here) gmail.com

My YouTube Flashlight Video Channel

The BLF Modding Links Thread 

http://imageshack.com/a/img922/1374/jQ2wdL.jpg

 

TexasLumens
TexasLumens's picture
Offline
Last seen: 1 year 4 months ago
Joined: 09/25/2012 - 23:29
Posts: 1133
Location: Amarillo, Texas U.S.A.

Old-Lumens wrote:

The output to the LED is parallel. led+ and led+ together, to the led. led- and led- together to the led. This gives you twice the voltage. It's a parallel circuit to the led. It's just like two batteries in parallel. + to + and - to - gives you parallel, that increases the voltage. Series is + to - and increases the amperage. Actually this set-up increases both, as it really is series parallel. The removal of the slave controller and the wire from master VDD to slave VDD on the 7135 circuit produces control to all 7135 chips.

Am I missing something here? I don't think so, but I could be wrong, (like just about every day).

EDIT: Yes, I am wrong. Completely wrong and worst of all I still don't get it.

 

Time for that old song.... "Welcome To My World", Won't you come on in.... can't remember who sang that. But OH HOW TRUE!!! Tongue Out

Dan.

 

 

 

Texas Lumens Website… http://www.texaslumens.com

WE LIVE IN THE LAND OF THE FREE ONLY BECAUSE OF THE BRAVE!

jmpaul320
jmpaul320's picture
Offline
Last seen: 1 month 1 week ago
Joined: 05/22/2012 - 09:06
Posts: 4189
Location: CT
Old-Lumens wrote:

CNQG was the original seller of the black SRK and I believe those were very good quality.

I’m not going to bother with Fasttech, since I’m never going to ship it back (costly) and since I have torn it down for modding, they can’t really do much. I accepted it initially and tore it down. I should have inspected it better first.

I imagine I will pick it up again sometime and finish it, but I would probably have to center the led with the reflector, mark reflector and head for position and Nitecore the head on the body, so no one can twist it off That way it will look centered, even though it’s not. That would mean loading batteries from the tail.

OL you should make a charging jack and leave the batteries in there Smile

Would you mind keeping the wrong flashlight?
Best wish, May
Tmart service team

 

Soumil wrote:

PLEASE HELP ME GEARBEsT! IM LITERALLY CRYING!

 

JohnnyMac
JohnnyMac's picture
Offline
Last seen: 12 hours 25 min ago
Joined: 04/12/2011 - 16:03
Posts: 8867
Location: Eastern PA

jmpaul320 wrote:
Old-Lumens wrote:

CNQG was the original seller of the black SRK and I believe those were very good quality.

I'm not going to bother with Fasttech, since I'm never going to ship it back (costly) and since I have torn it down for modding, they can't really do much. I accepted it initially and tore it down. I should have inspected it better first.

I imagine I will pick it up again sometime and finish it, but I would probably have to center the led with the reflector, mark reflector and head for position and Nitecore the head on the body, so no one can twist it off That way it will look centered, even though it's not. That would mean loading batteries from the tail.

OL you should make a charging jack and leave the batteries in there :)
Hah! I was going to post the same then I saw you beat me to it. Smile
Orion
Orion's picture
Offline
Last seen: 7 years 9 months ago
Joined: 11/18/2012 - 18:05
Posts: 896
Location: Where women growl & men chunder.
TexasLumens wrote:
Time for that old song…. “Welcome To My World”, Won’t you come on in…. can’t remember who sang that. But OH HOW TRUE!!!

That’s a bluesy song written by Winkler & Hathcock made famous by Jim Reeves in ’62 but I grew up on the Dean Martin version (only singer I know who sings from a sofa) :

“It is a far, far better thing that I do, than I have ever done; it is a far, far better rest that I go to than I have ever known.” – Sydney Carton in ‘A Tale of Two Cities’ by Charles Dickens (1812-1870).

Orion
Orion's picture
Offline
Last seen: 7 years 9 months ago
Joined: 11/18/2012 - 18:05
Posts: 896
Location: Where women growl & men chunder.

“It is a far, far better thing that I do, than I have ever done; it is a far, far better rest that I go to than I have ever known.” – Sydney Carton in ‘A Tale of Two Cities’ by Charles Dickens (1812-1870).

Pages