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

[Wieselflinkpro]

@Lexel

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.48158/page-4#post-859253

[Lazy-R-us]

TA, I am absolutely certain you have forgotten more about this than I even know. So please understand that I am confused rather than challenging you. Why would reversing the LEDs as shown in this MSPaint masterpiece shown below require a reduction in trace thickness? ( And are we talking thickness or width?)

[Lexel]

@Texas_Ace

@Lazy-R-us

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

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.

Keep the 2 that have the ground trace to the middle
The 2 LEDs on the right add 2. ground trace outside

And I would rotate all other LEDs 90 degree so the negative side is outside, so you get max ground trace thickness around the board

Add a 3. wire hole so 2 positive leads can be going to the driver, also do 2 pads for positive one up one down

Add 4. wire hole so 2 negative leads can go to driver and 2. ground pad on rhe right

also add a solder point on the right to make a bridge to the other ground point, like 0.35mm2 lead should fit below the reflector

[netprince]

Put me down for 1 more please…

It will be a backup in case I screw up one of the first two…

Thanks!

[muellihenry]

Interested in one

[Hardware]

Interested in two, thanks.

[Texas_Ace]

Here is an updated version with the pads rotated, it is cleaner like this and easier to understand:

[djozz]

Nice upgrade of the design TA! Perhaps even worthy to pass through to Kerui after all.

Interest list is at 61 boards now. I hope that on TLF there’s some additional interest.

I just PM-ed with Sundy, and Neal has indeed contacted her about the boards last monday. According to her, Neal said that I was going to tell her how many boards were going to be ordered. Which is a bit confusing because it will never be more (or less) than the minimal quantity of 230 boards, and the decision to go through with this is not by me but by Neal because he is going to pay for them.

I will contact Neal when he is back from his trip and ask about this.

In the meantime, with interest in just 61 boards, it still does not look like having these boards made is a very viable thing, unless all interested people are prepared to pay 3 dollar more per board. But perhaps Neal sees this different, and expects extra sales when the boards are there (and results using the boards are dripping in). I don’t know!

[Jtm94]

Didn’t know this thread was made, put me down for one.

[vwpieces]

I sent a message to The Miller to update to the link in the Q8 Modding thread to link here, not the other inactive thread.

OOps, looks like The Miller hasn’t been online for a few weeks, technical difficulties.

[Lexel]

Q8 2S/4S Buck driver
6/12V LED 2.5-5A standard parts
6-8A with upgraded parts

[RobertB]

You can put me down for 2 boards

[Kobox]

Interested in two, thanks

[WillyD]

Put me down for one in case they are ever produced.

[Wieselflinkpro]

@djozz

Nice upgrade of the design TA! Perhaps even worthy to pass through to Kerui after all.

Interest list is at 61 boards now. I hope that on TLF there’s some additional interest.

I just PM-ed with Sundy, and Neal has indeed contacted her about the boards last monday. According to her, Neal said that I was going to tell her how many boards were going to be ordered. Which is a bit confusing because it will never be more (or less) than the minimal quantity of 230 boards, and the decision to go through with this is not by me but by Neal because he is going to pay for them.

I will contact Neal when he is back from his trip and ask about this.

In the meantime, with interest in just 61 boards, it still does not look like having these boards made is a very viable thing, unless all interested people are prepared to pay 3 dollar more per board. But perhaps Neal sees this different, and expects extra sales when the boards are there (and results using the boards are dripping in). I don’t know!

Did you have contacted him? Or is he too busy with the GT?

[Lazy-R-us]

Interest list updated, current interest is in 68 boards. I’m not sure how to get more people identified.

[Lexel]

I have 10 Q8 2S/2P boards still on my next 4 layer Seeed run
if its not happening I put on there more boards on BLF GT upgareded design, maybe for the Niwalker BK-FA30S

[gds95]

Can you put me on the interest list for one? Thank you!

[Cawi]

please put me down for 2

[lightlight22]

In for two