May have been less than clear on my first post. Please note on my first post this was a question about the topology of the board. The board is to be built in Dec and is not yet available, but I wanted your feedback about whether I had everything that you needed/wanted
cheers
I think we all are looking to use CUTE-4 optics on a 35mm quad and most will probably use one of the many now available FET drivers for them and run them in parallel. I guess you could use the LD-2 also or just any other linear driver if you are not looking for max output.
Agree with pyro1son, that it is really a 20mm quad that would be more interesting. + we already have access to 20mm noctigon triple mcpcb’s.
It is the 20mm quad that is unavailable, but i guess one could maybe sand down a 24mm to 20mm but it is a hassle to do.
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 ) :