Curious, you gonna leave the cells in 8.4V configuration and run Zener modified FET’s to the quad board with the LED’s in 2S2P configuration?
Edit: Are you aware that you can take the battery carrier’s apart and replace the narrow gauge brass rod that carries ground with an 18ga Turnigy wire for better current? Spring bypasses are a must.
Already ahead of you on that one Dale. I actually have a third carrier I have already started working on. I’m converting them both to 4S so will end up with 4S2P. All traces are being beefed up with 3mm braid with solder in it, springs have been bypassed and the little domes they use for the positive contact have been replaced with solid brass buttons. I’m also replacing the ground rods and hopefully will be able to use the 16AWG Teflon wire I got.
The openings on the khatod optic are indeed very small. I wonder if a lot more light is lost (not collected by the optic) when the larger XPL HI is used.
It sounds as though I might be safer just using the Carclo optics. I don’t want to have problems with the emitters in this light. They cost a small fortune!
So it’s been about 2.5 years since I started this thread and I haven’t been very active around here for a while! Life has taken priority with buying a house, getting married and going on a long trip to the US for our honeymoon.
However, I decided to pull my finger out and get this build going again. The sad part is though, by today’s standards this light isn’t going to be overly impressive anymore!
Anyway here is today’s update:
I modeled the heatsink/spacer in Rhino
I then took the CAD file and my chunk of aluminium to the machine shop and this is the result:
A few more things which have happened:
- I’ve decided to purchase two BLF GT 4S battery carriers from Neal rather than modifying the factory ones as I think I will end up with a better result this way, it will be cleaner and should carry more current.
I have purchased some more 16AWG Teflon wire and think I will go with blue and transparent now
That’s it for now and hopefully the next post won’t take another 2.5 years!
Not impressive Your build is a great idea! :+1: :+1: :+1:
If possible, make sure your heat sink makes good contact with the host to exchange heat. Im looking forward to seeing how this progresses.
If the idea is to outdo everyone around the world then maybe it won’t meet the goal, but if the idea is to have a very powerful floody light for your use then you will definitely succed in that! Should be easily 25,000-30,000 lumens with some sustainability to make it quite useful, I think you’ll be very pleased with the end result and find you don’t even need to run it in Turbo to still have an outrageous advantage on things that go bump in the night.
Sweet work they did on that heat sink. I join the ranks of those looking forward to see it wired up and working.
Thanks for all the comments everyone, I’m going to try and get it all wired up over the next week and hopefully in the meantime the new battery carriers will arrive and I can do a couple of things with them.
I’ve had the heatsink machined so it is a slip fit into the top section of the head of the light. I’m not sure if you’re familiar with inside a TK61, but they have an aluminium tray where the original MCPCB sits and that tray is screwed down on to a raw aluminium shelf in the neck of the light. My heatsink sits on this tray so I will have some AS5 beteween the tray and the shelf in the neck of the light and then some more AS5 between the heatsink and the tray and it will be all screwed together - tray to light, heatsink to tray, MCPCBs to heatsink to ensure good contact. Fingers crossed it’s enough!