"Group Buy" Interest: Q8 MCPCB for Luxeon V/SST40/XML/XHP50 Emitters

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JIGHEADWORM
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interested

troisanh
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interested in 2

steel_1024
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interested in 2

Sorry for my poor english.

DavidEF
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So, it was mentioned in the other thread that some people would be interested in a complete board (with 4x LEDs already soldered on). If a complete board is ever offered, I’d be interested in one, depending on final price. Otherwise, I think I won’t. I’m concerned that my skill isn’t enough for the reflow.

The Cycle of Goodness: “No one prospers without rendering benefit to others”
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djozz
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DavidEF wrote:
So, it was mentioned in the other thread that some people would be interested in a complete board (with 4x LEDs already soldered on). If a complete board is ever offered, I’d be interested in one, depending on final price. Otherwise, I think I won’t. I’m concerned that my skill isn’t enough for the reflow.

I will not do the distribution for the US so I can not do it anyway, but I offered MikeC once to reflow leds on three triple boards and 6 (or so) single boards, I did it with lots of love for the hobby but it took way more time than I had anticipated. So yeah, I could offer one or two Q8 boards with leds reflowed (would have to order leds for them), but that does not help because I’m sure that the demand will be way higher than that.
Caleb
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Interested. 2 please.

Thanks!

keengeorge
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DavidEF wrote:
So, it was "mentioned in the other thread":http://budgetlightforum.com/comment/1232731#comment-1232731 that some people would be interested in a complete board (with 4x LEDs already soldered on). If a complete board is ever offered, I'd be interested in one, depending on final price. Otherwise, I think I won't. I'm concerned that my skill isn't enough for the reflow.

+1 smile

netprince
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Interested in two, thanks!

djozz
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Saturday morning bump. Interest in 51 boards sofar.

warzi1975
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Interested in two boards.

Robert

djozz
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News: Neal answered my PM and he is willing to do the order and sell the boards.

You never know for sure what is the best way of getting these boards made but I think this is a pretty good way, he already has some logistics in sending packages worldwide and it saves me a massive amount of work and the financial risk.

I hope that he prices them right. And he is interested in seeing this list continued.

KawiBoy1428
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djozz wrote:
News: Neal answered my PM and he is willing to do the order and sell the boards.

You never know for sure what is the best way of getting these boards made but I think this is a pretty good way, he already has some logistics in sending packages worldwide and it saves me a massive amount of work and the financial risk.

I hope that he prices them right. And he is interested in seeing this list continued.


Cool Thumbs Up

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Tjhosan
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Interested in 1 or 2 depending on price

MRsDNF
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Thanks djozz. Thumbs Up

 

djozz quotes, "it came with chinese lettering that is chinese to me".

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djozz
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Sunday bump.

Neal will contact Sundy tomorrow. I do not know what his threshold will be before he continues with the order but it would be nice if we can get to 100 boards in another few days.

khas
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Put me down for two please Thumbs Up

Lazy-R-us
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Monday morning bump. Current quantity is 56 boards.

Lazy-R-us

djozz
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We seem to be a bit stuck with a little over 50 boards. I would have thought that interest in 100 boards would be met in a week.

I hope and at the same time do not hope that Neal goes on with the order, I like this board to come true, but I do not like to be the one that talked him into many many unsold boards.

Lexel
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I think its a good idea to share this in German, Italian and CPForums, maybe someone speaks Russian as well to share there

Dutcheee
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Maybe it is nice to add here or in OP for which specific LEDs this MCPCB board is suited and which components need to be added for the thermal measurement. Does it work without it, LEDS only?

I assume it needs a special driver?
The development thread is so huge, it might put off various buyers.

MRsDNF
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Maybe change the heading?

 

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.

 

led4power
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Would 1.6mm PCB thickness be ok, or it must be 2.0mm?

 

djozz
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led4power wrote:

Would 1.6mm PCB thickness be ok, or it must be 2.0mm?


 


The stock board is 2mm and the reflector and bezel fit with no room to spare. The o-ring is not so much compressed that I expect it to get away with .4mm less compression.

But thermally, 1.6mm is no problem, the first prototype had a 1mm board and worked fine.

Lazy-R-us
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I was trying to figure out how what to change the heading to in order to make it more widely appealing and took a hard look at the board design in the first post.

Texas_Ace wrote:
Here is a 4P setup that doesn’t use the mounting screws.


I think the 12 and 6 o’clock LEDS would benefit from being reversed. Am I reading this wrong?

Lazy-R-us

ImA4Wheelr
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^

Good ideas on both points.

I know this isn't really a Group Buy situation, but that is the most common paradigm here for purchasing a newly developed product.  Maybe change the subject to something like this:


"Group Buy" Interest: Q8 MCPCB for Luxeon V/SST40/XML/XHP50 Emitters

Texas_Ace
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Lazy-R-us wrote:
I was trying to figure out how what to change the heading to in order to make it more widely appealing and took a hard look at the board design in the first post.
Texas_Ace wrote:
Here is a 4P setup that doesn’t use the mounting screws.


I think the 12 and 6 o’clock LEDS would benefit from being reversed. Am I reading this wrong?

The 6 oclock can’t be reversed without reducing the ground trace thickness, best to leave it like it is.

The 12 oclock LED could be switch around, although it seemed more confusing that way with the LED’s orientation switching so much, although it is still kinda confusing, so I doubt it would make a big difference. Just be sure to check the labels when installing the LED’s.

Which does point out one mistake, I forgot a – sign on one LED.

djozz
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And besides, the gerber files are already at Kerui, I would not like to confuse them with different versions if changes are mostly cosmetic.

Texas_Ace
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Yeah, it will not change the function at all, the – sign is not a real issue since the + is still there on that LED and basic common sense should tell people which way the LED goes lol.

firedome
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interested in 1

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Wieselflinkpro
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Lexel wrote:
I think its a good idea to share this in German, Italian and CPForums, maybe someone speaks Russian as well to share there

I wrote it in the Q8 Thread of taschenlampen-forum.de: http://www.taschenlampen-forum.de/threads/blf-q8-skyray-king-groupbuy.48...

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