Confirmed that was the fix. Thanks Dale (and Djozz and all of BLF)!!!
it’s easy to add the 10ohm resistor on a Mtn driver.
didn’t know that would work to pin 8…
Electrically it’s the same thing as the DEL /DJozz / TomE “pyramid” method, this driver is just setup a bit different than the BLF-A6 in regards to how exactly the D1 / C1 / VCC (pin8) net meet up. At the end of the day the “fix” is to add ~10ohm of additional resistance between BATT+ and VCC, logistically any method of accomplishing that should do the trick.
Note I did cut the trace going from the C1/D1 junction to VCC,otherwise the resistor wouldn’t be doing anything at all.
I made an optional charging module for my DQG titanium extension tube light.
Made from copper, brass and carbon fibre tube this has a micro USB charging port supplying a tiny ME4056 charger board modified to supply 350mA charging current. Red & green charging indicators.
Remove the flashlight head to reveal the charging unit, click the tail switch on and plug in USB lead to charge.
I find the option of on board charging very convenient these days.
Luminus SST-40 on 14mm Noctigon
MTN 15mm FET driver with GuppyDrv3 firmware
Cyan GITD LED surround
Hand made copper pill, charging unit & switch housing
Reverse clicky tail switch
Magnetic tail
Length - 104mm
Width - 17mm
Weight - 62g with 14500 cell
Max around - 1500lm OTF
Very cool! I have had that happen to 2 Mtn FET+1 drivers, I quit using them after that, just the straight up FET’s since. Thanks for figuring that out! :+1:
I got my noctigon quad mcpcb and angie optic today. So I made an aluminum spacer and got it mocked up in the light. I’m just waiting on the 351d’s from the GB to arrive before finishing it up. The optic is a bit small and doesn’t fill up the head but it’ll work just fine.
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Looks good vinte77!
[quote=vinte77]
I got my noctigon quad mcpcb and angie optic today. So I made an aluminum spacer and got it mocked up in the light. I’m just waiting on the 351d’s from the GB to arrive before finishing it up. The optic is a bit small and doesn’t fill up the head but it’ll work just fine.
Nice work! Sharp host too, what light is that?
Thanks, it’s a Manta Ray C8.2. It’s a nice 26650 host with a c8 sized head. The shelf is very thick, I was surprised it took me so long when I was drilling the center hole.
No kidding, Manta Ray, that is a sweet looking light, 26650 too, I want one now!!! 
Thank you! :+1:
Happy to help, also it’s nice because it takes 22mm sized drivers.
Well it just gets better and better!
I like that you turned the ano off the bezel end like that, sets the whole light off, very classy look! Or is that a stainless bezel…
Kewl, I gotta look into MRs now.
But don’t forget, the F13 takes 26650s and has a 22mm pocket. Nice host.
The MR fits the convoy c8 stainless bezel and MR also makes their own stainless bezel too. The one on my light is the convoy one.
This host is noticeably better quality than the F13. The fit and finish is much better, and the host is a lot heftier for better heat sinking. It also comes with a/r lenses, but of course the price isn’t as good as an F13. But you get what you pay for.
Nice mod on the Manta Ray, I too love that look and will probably hunt it down and bag it. 
Made a heat sink for the hollow headed Sofirn SF34 9x XM-L T6 today. (just got the light today) It made 1800 lumens stock, I then put a Q8 driver in it flashed with Anduril. A bit over 5000 lumens now. But the thin aluminum MCPCB was totally not sufficient for this, they had the reflector drilled and tapped for two screws to secure the MCPCB to it but they didn’t use any screws, actually just taped it together and added a couple of thin pieces of folded cardboard as spacers to keep it from rattling.
With a fairly thick aluminum heat sink and two screws snugging the assembly together, it works pretty well. I have to get some more 10mm SinkPAD’s to be able to use the new Samsung emitters but that’s next…
Mmmm, 2500 lemons sounds nice in that form-factor.
Where do you buy 10mm mcpcbs?
Mt Electronics sells the 10mm sinkpads.
Re the MantaRay C8.2. I haven’t pulled the trigger, but, I inquired with the Ali Express shop to ask if they’d sell the host with an extension tube. They said they would. I wasn’t confident though whether it was an extension tube that mated with the stock 1s tube, or a one-piece 2s tube, which is what I think they use for their 2s XHP50 C8.2.
It’s not finished yet but I spent some time on a triple Rook conversion today. Built the new MCPCB shelf out of 18 & 22G copper I cut into rounds then soldered together. First I built the Puck then reflowed the noctigon onto it and reflowed the emitters onto the noctigon at the same time.
The tir is the deeply dished, pebble finish Cute. Emitters are what I had laying around.
Waiting on driver boards now, may piggyback something onto the stock driver as a contact till then but Idk what FW to use. It’s designed with a 25, 7135 + FET (if it were a click it’d run bistro), what do you guys suggest?
4 disks make up the puck (3 18G, 1 22G for proper thickness)
Press fit into light, center hole for 20AWG wires.
Finished head
Nice work on the Rook C_k ! But wouldn’t the XP-L because of the higher Vf not be sub-optimal parallel to 2 219C’s ?
Edit: just checked the curves and it is not too bad, in fact the XP-L could well be putting out about the same amount of light as the 219C’s at the same voltage (but at less current so more efficient).