I do the same as djozz only with 2 or 3 washers. If you try it with just one the edge of the dome will likely tear off at the end of the cut. As djozz mentioned the solder height is a factor if you want a close cut but probably even more important is to try to use the same type of MCPCB each time. I have a 20mm one I use that has never had solder on the LED +/- pads so the washer sits flat/the same way every time.
Actually it’s good to know others experience similar problems, I was even thinking of getting something thinner than Wilkinson razor, but the trick with double / triple washer is definitely worth trying. Many thanks.
I’m not sure everyone understood what djozz was saying. I think he’s saying he uses a thick washer to slice first, then a slightly thinner one to slice a bit more, then a thinner one again, then the thinnest one gets the last slice to be the right height.
I don't know exact tint bin, but I've never seen Lumileds LEDs available in narrow tint bin range,they are only available as 3 or 5-step MacAdam ellipse.
They will be replaced by new design,fully gold plated this time, so price will be a little bit higher (similar to 3030 DTPs). Existing PCBs at reduced price will be available until stock is exhausted.
I don't plan to have 5050 pcbs anymore, only two popular LEDs use them these days: SST-40 and XHP50.2, and I don't stock any of those, so it doesn't make too much sense to have pcbs and no LEDs.
Luxeon V is IHMO better LED overall than SST-40 so I don't want to stock two very similar LEDs, XHP50.2 has ugly beam tint - don't want to stock those either for this reason.
Question though, I haven’t been able to find the answer and haven’t built a triple yet so forgive me if this seems like a simple/noob question… I see the L4P triple spacer has a bolt and a spacer whereas others, such as kiriba-ru’s, just have the spacer. Why is that and is there a practical difference? I’ve gone through a number of X6 triple/quad build posts (including yours) but am still struggling to get my head around the role the bolt plays.