Ahh beautiful, making me really want one of your customs!
Tom, that’s something I have yet to learn. Offset turning. I have the 6” 4 jaw chuck and the offset plate but don’t know how to set it all up. Figured I’d get there one of these days but haven’t so far. Maybe MRsDNF will take another vacay and swing by and show me how all that works. 
I could of course run up to North-West Texas and get Dan to walk me through all that.
Its not as hard using a four jaw chuck as it seems Dale. Some marking out and a centre pop where the centre of the hole is. With a centre in the tailstock run it up to the work piece and adjust the jaws until your centre pop mark is central to the centre in the tailstock.
We have all watched what you can do dale and I have 100% faith in your abilities to be able to do this. You are a natural. :+1:
Super nice work Dale!! Thanks for sharing the build. TL
So much amazing goodness going on in this build.
Wow, this is amazing!
Wow, if you hit 12 A it will only be briefly as the cells drop to 3.6V almost immediately. :person_facepalming: silly me, might get more than an hour at 12 A.
The talent on BLF never ceases to amaze me , amazing stuff……………wow
Wow!! Truly impressive!!
Dale how do you keep the switch from liquidizing? Not that your madness needs coaching. You still have that Trustfire TR-J20? Think triple 20700 stacked 4 high, 3x4. Twelve XHP50.2 42000 lumen. Just idle thinking.
nice.
you making some for sale Dale?
Fantastic work Dale. I’m a little jealous as my lathe is in the middle of upgrades. I bought a bicycle sprocket to use as an indexing plate but the centre hole is not quite as centre as I’d like. So I need to fit a 4 jaw chuck to hold it and work it a bit, that in turn requires the backplate to be machined to fit. I keep thinking to myself this would be much easier if everything was already set up on the lathe :person_facepalming: :person_facepalming:
Anyway love your light :+1:
Thats very nice work.
Did you build it as something in between a flooder and a thrower? Like a general purpose light?
I’m thinking all that copper would be good for some xhp70’s, but you probably already have a triple xhp70, right? Lol
Yeah, when Dale said the 20700’s weren’t performing like he thought they should, so he made it a 26650 light, I immediately thought of this review, where HKJ said these 21700’s outperform a 26650 for high amps. Dale, you were so close. You already said your first tube could fit the 21700’s. Now, you’ve got a regression it seems! Well, at least 21700’s will fit in the 26650 tube using a sleeve, as long as you made the tube long enough. You did make it long enough, right?
Scott, it does 12A in a lower mode… Turbo is around 20A.
I’m actually using a mini Omten, the spring is bypassed but it’s not a through board bypass which I should probably do and that might get me a wee bit more.
My TR-J20 has a massive heat sink in it and has 4 of the 9V MT-G2 on it, making 15,000 lumens as well. Of course, I could acquire another… (This heat sink is what let RMM’s TR-J20 with 12 XHP-50’s work at 39,000 lumens, I’ve got an additional 1/4” thick plate up top. RMM’s had an extension tube I made to carry a 4th 32650 cell. Pretty sure Slow2Go has RMM’s TR-J20 now.)
I didn’t know if it would be more flood than throw or what to expect. This is a new reflector to me and of course the emitters are brand new as well. That said, the hot spot is quite surprising and it manages to show black on dark green in the absolute dark of night (no moon) to 225 yds or so which is sufficient. I looked at the red oil drum from about 75 yds last night and the overall results are very satisfying. Had been rainy, was threatening and lightning abounded so I didn’t set up the tripod for beamshots. I did have a triple XHP-70 in an BTU Shocker. I had to tame the donut hole with large TIR’s in each reflector cup but it worked out really nicely and made 11,000 lumens on a pair of 18650’s and 14,448 lumens on 6 18350’s. I had modified a carrier to take the small cells, had both carriers. This light also hit 20,000 lumens with 3 18650’s for a very brief test. Copper traces on the carries vaporized, I repaired the damage with fairly heavy copper plate but never tried 3 cells again. I sold that one having also a Shocker with 3 of the 9V MT-G2’s at ~10,000 lumens that I’m very fond of.
And yes, I built it originally for the 21700 cell that wasn’t available and still isn’t available. Then I realized that while this cell might be wonderful and all that it’s still only a 3000mAh cell and even IF it could deliver 30A then it’s only about 6 minutes worth at a 10C discharge. While that hasn’t stopped me before, the 26650 tube can easily take the smaller cell. And yes, it’s long enough. I have put Molli 26700’s in it. They just kinda suck.
PinkPanda, get that thing back together and get busy man! 
Thanks guys, appreciate it. For me, still new to the lathe, it is quite a labor of love to get something like this done. I still have a couple of tweaks to go to enable the o-rings to fit and have it in finished shape but those should be minor. (hopefully not famous last words) You can see a shiny silver ring where the battery tube meets the copper, this is because it’s not seating that last couple of mm due to me not being able to cut the threads all the way to the bottom of the driver bay. I need to either cut a relief down inside that copper or remove a couple of threads from the end of the tube. Similarly, where the bezel slips over the head in an almost press fit I need to continue that “landing” for the o-ring up there to be able to fit in. Essentially simple, with plenty of room for major catastrophic failure. lol
Also the 20700B are not high performance, more like the SANYO GA's, but little better. The 20700A's are the high performance ones, but the 21700-30T I believe is even better than the 20700A.
Well yes, of course, but all that is pretty redundant when the 20700A and the 21700 are not available for purchase.
Ohh - I got a pair, bought when IMRBatteries had them - now out of stock 
. Shame because I'm still trying to find a light that won't crush the tops. One is already damaged. 26650 lights that fit 26700 cells don't fit the 20700A cell well, and the tops are really thin metal.
Have you inset the switch on a 26650 light so the extra length will be accommodated? I’ve done that before to allow that little bit of extra space on single 18650’s that I was using a pair of 18350’s in. Just a thought.
Inset the switch? Hhmm, not sure what you mean, so probably not?