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