Q8 Dual footprint, quad LED copper DTP LEDboard interest List

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TheOnlyDocc
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Q8 Dual footprint, quad LED copper DTP LEDboard interest List

This is a first check if enough people are interested in a Q8 Dual footprint, quad LED copper DTP LEDboard.
The Board would be produced by Kerui Electronics for about 8 euro per board (50 pcs minimum order). It is only a interest list to check if we could get filled the minimum order. No commitments for now.

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Q8 Dual footprint, quad LED copper DTP LEDboard interest List (http://budgetlightforum.com/node/54758)

CrashOne
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If the board can handle triple XHP70.2, than I’m interested.

Is there already a FET board for a triple XHP70.2 available?

The Miller
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Nice!

I was about to respond in the Q8 topic that Djozz has made contact with a manufacturer, but you got one and your price is lower then what Djozz found!

The Miller
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CrashOne wrote:
If the board can handle triple XHP70.2, than I’m interested.

Is there already a FET board for a triple XHP70.2 available?


Triple?

The XHP70 has a bigger footprint right?
Dual pads, XML and XHP70 size seems logical since the Q8 had XPL size pads

djozz
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Nice initiative! You could ask Sundy for an up-to-date quote (DTP, 2mm copper, 38mm diameter).

djozz
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XHP70? Yeah, why not? I would go for XHP50, that is bold enough for me Shocked

TheOnlyDocc
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I refer to djozz contact. If the Q8 boards are the same quality like djozz N119er boards are, i could not think of any problems.
There is a lot to figure out to make it happen but i def would like to get one board. The options with the new leds are to tempting!!!
(Can not wait to see the sst-40 overdrive test and for shure the dedome test!)

Cheap bare 385nm UV LED (http://budgetlightforum.com/node/54674)

Q8 Dual footprint, quad LED copper DTP LEDboard interest List (http://budgetlightforum.com/node/54758)

TheOnlyDocc
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djozz wrote:
Nice initiative! You could ask Sundy for an up-to-date quote (DTP, 2mm copper, 38mm diameter).

I think we would need the exact ledboard layout (for perfect reflector allignetment) and the exact position of the holes . . . to ask for a price.
It would be a big step in the right direction if one of the PCB layout experts could jump in.

Cheap bare 385nm UV LED (http://budgetlightforum.com/node/54674)

Q8 Dual footprint, quad LED copper DTP LEDboard interest List (http://budgetlightforum.com/node/54758)

Jtm94
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I could be interested. We’ll see where this goes.

DavidEF
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Jtm94 wrote:
I could be interested. We’ll see where this goes.

Yeah, I’m watching too. Glasses

Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone.
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Rufusbduck
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What two sets of quad footprints? XM XHP70, XM MTG ?

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The Miller
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Something like this but then XML and XHP

Texas_Ace wrote:
Ok, here is a much simplified version that is actually feasible to see into a production light IMO. Basically the first design except with jumper pads to select how you want the LED’s setup.

I realized there was no need to individually address all 8 pads so this one addresses them in pairs of 1x xm-l and 1x XP-l since we can only use 4 at a time anyways.

To connect them in series you simply jump the LED pads with a 2512 resistor over the XM pads and a 2010 over the XP pads.

Traces could be pre-routed so jumpers are not needed from the factory although like was said the cost for 8 0 ohm resistors is literally less then 1 cent and they will be reflowing the MCPCB anyways.

Far as the wiring to the outside ring goes, I would not worry about wire length, it is no different then a trace out there from a performance standpoint (better since it is thicker really).

Also the outside wiring would got right between the reflectors so there would be plenty of room for a cutout for the wire.

TheOnlyDocc
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The original dual quad footprint board was XP and XM. But since the original Q8 comes with a XP board we could go with something else. XM and XHP70 or something else. I think everyone that is interested in a mod ledboard should speak up and name the combination he wants. And then we can count which design is the most prefered. Adding special pads for a thermistor or aditional pads for color leds . . . could also bé discussed. (but to make this happen some of the PCB gurus have to help)

Cheap bare 385nm UV LED (http://budgetlightforum.com/node/54674)

Q8 Dual footprint, quad LED copper DTP LEDboard interest List (http://budgetlightforum.com/node/54758)

djozz
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The original quote from Kerui for a quad SRK board was based on a pretty vague pencil drawing, so an exact design is not needed for that (you could use TA’s dedign for the quote and hand in the exact design later) . It helps the interest check if you have the real price.

hank
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I think the logic of making it XM and XHP70 can’t be beat. There’s no reason to use XP, since the original board is already that. That board that Texas_Ace made (that The Miller posted above) would work quite well, if changed to XM and XHP70. It’s already set-up for the flexibility to use any combination of series and/or parallel connections. It already has a place for the thermistor. It’s well designed to fit most SRK lights. Since we have access to the exact dimensions of the Q8 board, maybe it could be tweaked to be a better fit there. It needs to be modded a little to accommodate the two hold-down screws.

Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone.
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The Miller
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One major thing though, the wires must be soldered to the MCPCB in the center for the reflector has the milled out area there, so what TOD said, somebody needs to make a design.

The four holes are for the wires
Center hole for screw so sizes probably need a little tweaking too

TheOnlyDocc
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I have contacted Sundy and asked for a ~ price and min order quantity for a DTP, 2mm copper, 38mm diameter board with a similar layout to the TA board. Now we will have to wait and discuss which design is the most prefered.

Cheap bare 385nm UV LED (http://budgetlightforum.com/node/54674)

Q8 Dual footprint, quad LED copper DTP LEDboard interest List (http://budgetlightforum.com/node/54758)

k-wong
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I’d be interested in a XM and XHP70 board. Would you need a new driver or can the existing Q8 driver be modded for the XHP leds?

Texas_Ace
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I would order one of these if they were made. I think an XHP50.2 Q8 would be great. It would make the stock 6000 lumens much easier and with much less heat. It should also peak over 15k lumens.

In fact some quick math says that the xhp50.2 could produce ~10k lumens for the same amount of heat as the stock XP-L’s produce 6k lumens due to the higher efficiency (~130lm/W vs ~80lm/w).

XHP70 would be more work since you would have to drill out the reflectors but they should be able to do ~20k lumens, for a few seconds.

Personally I think I would get some 90+ CRI xhp50.2’s and call it a day. 10k+ lumens of nice, high CRI light.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

djozz
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k-wong wrote:
I’d be interested in a XM and XHP70 board. Would you need a new driver or can the existing Q8 driver be modded for the XHP leds?

Indeed a new driver must be made, and to avoid having to use 18350 cells,you need to re-work the battery compartment for a 2S2P set-up.

This mod is not for the lazy one! (lazy1=me Innocent )

Texas_Ace
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The TA drivers already have drivers that will work with 2s and 4s setups. Although a good buck driver would be nicer and the GT design could be adapted fairly easily for the task.

Reworking the battery setup is really not that hard, just a matter of drilling a hole and then screwing a bolt into the driver to allow it to spin. Then minor soldering like any other mod. I was actually surprised just how easy it was to set it up for 2s or 4s. I still wish they came like this from the factory.

Not an easy mod but not that hard either. No special tools are needed past a drill.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

Tom E
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Add me for qty 2 to the interest list. The Q8 is a wayy better host than any other SRK's out there.

Boy TA, you got my interest peaked now. I never understood it all quite before. I got a couple SupFire L1's that I'd like to try this with - 5 LED's, 5 XHP50.2's. The L1 is more chunky than a typical SRK. Got to order your boards and some parts...

Texas_Ace
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Yeah, the xhp50.2 would make for a nice soda can light. I figure it could sustain around 6,000 lumens fairly easily and give a pretty darn reasonable runtime at ~10k lumen before it overheats (basically the same amount of time as the stock Q8).

The driver conversion is not that bad either, although for the Q8 either a special board would have to be made for the screws they are using or you would need to glue it down.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

k-wong
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Texas_Ace wrote:
The TA drivers already have drivers that will work with 2s and 4s setups. Although a good buck driver would be nicer and the GT design could be adapted fairly easily for the task.

Reworking the battery setup is really not that hard, just a matter of drilling a hole and then screwing a bolt into the driver to allow it to spin. Then minor soldering like any other mod. I was actually surprised just how easy it was to set it up for 2s or 4s. I still wish they came like this from the factory.

Not an easy mod but not that hard either. No special tools are needed past a drill.

Thanks TA, I’m not sure I quite understand this but I’m sure I’ll be able to figure it out when the time comes.

Wieselflinkpro
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I would take at least one for XHP50 / 70 6V

For XP-Footprint is no need.

PBWilson
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Texas_Ace wrote:
I would order one of these if they were made. I think an XHP50.2 Q8 would be great. It would make the stock 6000 lumens much easier and with much less heat. It should also peak over 15k lumens.

In fact some quick math says that the xhp50.2 could produce ~10k lumens for the same amount of heat as the stock XP-L’s produce 6k lumens due to the higher efficiency (~130lm/W vs ~80lm/w).

XHP70 would be more work since you would have to drill out the reflectors but they should be able to do ~20k lumens, for a few seconds.

Personally I think I would get some 90+ CRI xhp50.2’s and call it a day. 10k+ lumens of nice, high CRI light.

This post makes me very interested in one of the boards. I’m getting two Q8 lights with the idea of modding one and this would make it a fun and worthwhile project.

I’ve done more than my fair share of soldering and wiring with guitar effect pedals and other musical instrument-related stuff. I’m hoping that once this is real, there might be a modding thread showing just how it’s supposed to be done using smaller parts and a hell of a lot more power than a 9-volt powered stompbox.

feralcomprehension
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  I'd be interested, depending on price.   My preferences would be a) guaranteed integration with the stock reflector.  (Maybe that's obvious).  And b) one of the pad sets should be configured with whatever y'all think are the most future proof option.  Is there a latest best from Cree or Nichia? 

Texas_Ace
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The 5050 and 7070 footprints make the most sense. The 3535 is taken care of with the stock mcpcb, and other footprints are not really suited to the Q8 as they would be low output.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

Mr.Scott
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I’m interested in 1.

I’d like to see the XHP50.2.

TheOnlyDocc
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I got a answere regarding the MCPCB.
:
DTP,2mm copper, 38mm diameter,we can give price 2USD to 2.5USD/pcs,mainly according your order quantity.And we mininum order is 500USD,
if less than 500USD,we will charge engineer fee.Because although small quantity,we also need some process,hope you can understand.

So the boards are way cheaper than we thought. But at this price we have to take a lot of boards to get to the min order. I will ask for the engineer fee when i am back from the Vet.
I hope it is not the last way that i and my 15year old Cat have to go but it is not looking good Crying

Cheap bare 385nm UV LED (http://budgetlightforum.com/node/54674)

Q8 Dual footprint, quad LED copper DTP LEDboard interest List (http://budgetlightforum.com/node/54758)

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