First Impressions Nitecore EX10 Ti and EX11.2

[jon_slider]

@shirnask

fantastic mods!

[Bruno28]

is there any place I can get one of these?
I remember back in 2009 when I saw but couldn’t afford one always liked the piston mechanism.

[jon_slider]

@shirnask

I have used them for a few weeks now and have found that if I do a hard press of medium length I don’t have any unexpected results. Short clicks, no matter how hard may lead to undesired results. The same for light clicks. The only failures that I have had have been when I didn’t do both of these things.

Thanks for sharing your tips and tricks to enjoy the EX11.2

I also find that pressing deliberately, not lightly nor quickly, is helpful.

Today I discovered another factor I can adjust… piston travel!

.

I have an EX11.2 that was pissing me off!
the button just seemed to have a mind of its own
it would not ramp, it would strobe when I did not want it to, it would not turn off…
I blamed the LED, I blamed the battery, I blamed my thumb

the solution was to back the head out 1/8 to 1/4 turn

Nirvana!!!

all my clicks are now understood properly by the EX11.2 driver. I can go to minimum, maximum, strobe, sos, turn on, ramp up and down, turn off… all predictably.

.

speculation, why does unscrewing the head work?:

I think that when the head is fully tight, the piston pushes the spring loaded brass contact ring too close to the driver. The piston does not have enought travel to rebound properly, to allow the brass ring to lift itself away from the driver.

by loosening the head, we eliminate the excess compression from the piston pressing on the contact ring

with the head slightly loose, there is a bit more piston travel, and everything works properly

also note, different batteries have different lengths, cr123 are shorter than protected 16340, etc…

fwiw, the head loses contact with the piston if unscrewed 3/4 turn… so dont do that… unless you want to use the light as a single mode twisty

Thats a feature, not a bug… LOL!

[shirnask]

Thanks for that tip. I have now loosened the heads on the three EX11.2’s that I have and I will be testing to see if this makes it easy enough to let a less experienced person use these lights comfortably as I really like the beam profile after changing out the emitters.

[jon_slider]

@shirnask

I have now loosened the heads on the three EX11.2’s that I have and I will be testing

thanks for joining the research team

I look forward to your observations

[Gunga]

I often tuned my d10 and ex10 lights by filing and sanding to reduce the length a touch.

[Boaz]

The trick that Okwchin taught me years ago about how to minimize effort needed to activate pistons was that there becomes a suction between the top of the piston and the light . Top here meaning the shoulder of the piston. People spend a lot of time looking at the o-ring thinking that’s the problem . but it’s mainly the shoulder/suction and viscosity of lube . Ex models are obviously worse offenders . clean your shoulders .