I use parallel as most of my quad builds are in the Eagle Eye X6 format, which is a single cell light. The 35mm head works great with the CUTE-4 and CUTE-3 optics from Ledil.
I think the nominal mcpcb size is 32mm in the ones I’ve been using, and even those have to be filed down a bit to make the 31.7mm inside diameter of the pill in that light. Of course, there are bigger lights and bigger options, I’ve got a 50mm triple optic that I’d like to use in a Convoy L2, not sure what would fit that.
I wonder if a triple MT-G2 board would be feasible? Or triple XHP-70? Probably with the 50mm optics, as these big boys would prefer larger individual TIR’s inside the optics. I’ve got a BTU Shocker running 3 of your 9V MT-G2 emitters at about 10,000 lumens, absolutely love this light! (triple reflector works perfectly with the big MT-G2’s)
Gotta be tough designing these as we all expect different things, use different lights, have different styles.
Yes parallel, i don’t think it exist any serial high amp capable driver for single cells, so i have only seen parallel use around here.
Maybe Dale can show an picture of the old limited run copper DTP 20mm mcpcb’s for reference.
I don’t even remember what they was called either, only that some russian guy showed up here and said he was doing a batch of them, and now they have been sold out for months and as far as i know there haven’t been any talk of them returning to market.
I can adapt, I’ll use whatever optics fit the board and shave the dome off of MT-G2’s so they’ll fit under the optic. Obviously, gotta have copper under triple 6V emitters, I’d try pushing all the current possible, I run 12A+ to a single MT-G2 now…
The russian guy is BLF-member Dsche, he's still around, and actually his 20mm copper parallel quad board was still available until not so long ago, I bought a few boards from him. Here are a few pictures (the cuts in the solder pads were my doing, making the leds individually adressable):
A picture from his thread ( https://budgetlightforum.com/t/-/22412 ) :
But what sounds even better is that you are responsive and trying to fill the last few holes & give us the tools we need, to get even more & easier performance in our future mods
Make the traces as wide as possible. For some silly reason SinkPad made the xhp70 traces dinky. Check out those on any Noctogon. Only the copper necessary for trace separation is removed on their triples and the singles have nice wide traces.
...and make the center hole wider than Dsche did. I admit that I got into trouble by modding the board for four individually addressable leds (5 wires, I had to ream the hole quite a bit) but if it has no disadvantage, it is nice to have it wider in the first place.