teacher
(teacher)
October 21, 2018, 6:03am
1015
This is the info I had in my notes……
Here’s all the screws below:
Q8 V2 Screw sizes
Driver (2): M2.5 × 4 mm
Tail PCB (4): M2.5 × 5 mm
Reflector (1): M4 × 10mm
MCPCB (2): M2.5 × 10mm
Q8 V1 Same Except
Driver (2): M3 × 5mm
Reflector (1): M4 × 8mm
Edit: The above info is for the original Thorfire Q8.
Thank you, I’ve ordered the correct ones then.
Just finished bypassing the springs and now getting 5030 at 30 sec with 30Q’s … 300 lumen increase, not bad.
I was expecting more but I guess that’s the downside to XPL HI’s compared to the BLF Q8
teacher
(teacher)
October 21, 2018, 6:07am
1017
Thank you, I’ve ordered the correct ones then.
Just finished bypassing the springs and now getting 5030 at 30 sec with 30Q’s … 300 lumen increase, not bad.
I was expecting more but I guess that’s the downside to XPL HI’s compared to the BLF Q8
My pleasure. Good increase too. :+1:
Oh yeah, I forgot to mention those screw sizes were for the original Thorfire Q8. But they should be the same for the Sofirn Q8. I added an edit to the post above to reflect this .
Henk4U2
(Henk4U2)
October 21, 2018, 8:36am
1018
I wrote ‘standard Ø2.5*4mm screws’ which means that the lenght of the thread is 4mm. A bit short IMHO. But then again: I come from the world of powerplants. Everything under M6 is focussing on not shearing off bolts.
Don’t worry, the inner threads in the body stretch far enough for a few extra mm.
Just in case anyone is interested in results using Sofirn unprotected cells, NCR18650GA’s, and 30Q’s
Stock Q8
Sofirn cells - (4730) - on / (4440) 30 - sec
GA’s - (4820) - on / (4460) 30 - sec
30Q’s - (5020) - on / (4720) 30 - sec
Bypassed Q8
Sofirn cells - (4960) - on / (4620) 30 - sec
GA’s - not yet measured
30Q’s - (5440) - on / (5030) 30 - sec
RobertB
(RobertB)
October 23, 2018, 8:35pm
1020
I really like this Sofirn Q8. Nice pure white beam, no ugly tint shift. Shot taken with my Galaxy S9 camera. Pitch black outside, no street lights, no moon.
teacher
(teacher)
October 21, 2018, 5:48pm
1021
@ Funtastic… Thanks for the info, good results! :+1:
.
@ RobertB…. Great shot, I too love that beautiful white beam the Sofirn Q8 produces. Very nice indeed!! . :+1: . :+1:
Alen
(Alen)
October 21, 2018, 5:54pm
1022
When for a warmer version?
teacher
(teacher)
October 21, 2018, 5:58pm
1023
My “guess” is Sofirn will not offer a warmer version. The original Thorfire Q8 has that covered.
leaftye
(leaftye)
October 21, 2018, 6:26pm
1024
I decided this morning to slice the domes off the XP-L2’s in my Sofirn Q8 and dice the remaining phosphor from the sides of the die to clear the substrate of unnecessary phosphor (to get rid of the ugly aura) This did cost me some lumens, but the resulting hot spot is tighter and easier to look at the aura… the aura is warmer than the hot spot but it’s not the odd sickly weirdness usually present from the flip chip technology. Where I was at 9936 lumens it now seems to be at 8522, charging the Samsung 25S cells to do another run on the box but I think it’s worth the loss, hot spot gains alone with the throw being at 91.75Kcd for 605.8M throw.
Edit: With fresh charged cells it’s now making 9142.5 lumens and at 30 seconds it has dropped to 7210.5 lumens, quite hot stuffed in the light box with no air flow! Thermal step down is probably the greater cause of the drop, Anduril is pretty effective in the Q8.
Is there anything else you’re doing to get such amazing output?
BlueSwordM
(BlueSwordM)
October 21, 2018, 6:30pm
1025
If I remember well, he is using an ULcp AR lens, which is more efficient that the stock one, along with BeCu springs bypassed, and a pure copper plate holding the springs in place.
I think he also replaced the FET with a slightly lower resistance one(not too sure though), and swapped the 18AWG power wires for 16AWG.
leaftye
(leaftye)
October 21, 2018, 7:18pm
1026
I looked through all his posts in the modding thread. The lens and copper spring disc didn’t do much. The spring bypass was about 1200. Brass screws about 300. These got it up to about 7000. I didn’t see a number broken out for the mcpcb wires.
The other mods he’s mentioned were XP-L2 emitters on Sinkpads and A20DP FET. That’s the parts, and there’s also the mods to the head.
BlueSwordM
(BlueSwordM)
October 21, 2018, 7:24pm
1027
Ah! The lens did actually boost the output by a nice margin. He actually gained about +/- 500 lumens from it in an XP-L2 build:
WE HAVE A WINNER! Entrant number 34, post number 43… DAVID EF! You Win! Congratulations! Give me a shout and let me know which light tickles your fancy!
[image]
Generated at 12:31:22 Central Standard Time
[image]
EDIT: DEADLINE MET, 156 official Entries. I WIll Be Back…
I am not sure how it happened, but I have passed the 18,000 mark in posts! So I guess that means a giveaway is in order! But what? I little zoomie? Naaaa, that wouldn’t be any good! Gotta be something with some Ooomph…
leaftye
(leaftye)
October 21, 2018, 7:57pm
1028
Thanks. Here’s the direct link to that comment.
Y’all ready for this?
The XP-L2 Q8 with all it’s tweaks and the new UCLp lens is up from 9453 lumens to 9936 lumens, by merely swapping the lens.
Gotta love it when a plan comes together!
FWIW: This is the UCLp 54.87mm x 2.9mm UCLp in Acrylic from Chris at flashlightlens.com . He also has a glass AR coated lens that fits and has a 99% light transmission rating, at 55mm x 1.9mm… it fits but needs a thicker o-ring to prevent it rattling and make the water tight seal up top. Stock lens m…
HONDARIDER
(HONDARIDER)
October 22, 2018, 2:09am
1029
Just contacted Sofirn through PM and bought another Q8 with a discount code. Code was for Amazon (US) and it was a few cents less than the group buy price.
Sofirn is actively promoting this version. You would do well to contact them directly.
Alen
(Alen)
October 22, 2018, 2:50pm
1032
Yes,but the Thorfire Q8 is XP-L.
I ask for an XP-L HI Warm version
DB_Custom
(Dale)
October 22, 2018, 5:58pm
1033
I didn’t change the factory leads from the driver, they looked to be 18ga and that’s enough. I have larger, but have never used it.
teacher
(teacher)
October 22, 2018, 7:34pm
1034
I understand that. :+1:
I just doubt they will offer it. But that is only “my guess” .