Re: Price dropped! FS: Slotted Nitecore pistons with vials installed
I thought I knew everything about D10/EX10 and D11/EX11 as I have a small collection of modded lights of this type. Well, I was wrong! Yesterday I got an EX10/EX11 new style piston and a D10/D11 new style one...
First I wanted to install the piston in my EX11, changed the spring and the o-ring which I lubed, popped the piston with the battery in the light and screwed it together. To my surprise, I was unable to screw it together completely and the piston was completely blocked, I couldn't shut the light off anymore. I got the piston out again and compared it to the one that was in my EX11 and the slotted one was about 3mm longer. Weird! Unfortunately I have no EX10 with the new style piston to compare, that one must have used longer ones I guess and the piston I got was from one of those?
Then came the D10, the one I wanted to get the piston in is a late D10 (and surely a new style). Again a surprise, the top of the piston was too large, impossible to get it in. To check I took the (slotted) piston out of my D11, same thing, too large. So, I guess that the D11 uses pistons that have a larger button top and the piston I got was from a D11?
OK, that meant Dremel time with my two left hands. For the EX11 I did a perfect job despite my two left hands, I shortened the piston and it now has nearly the exact size of the stock one. So, no problem I thought, got the piston in the light and was unable to shut the light off, the cell I used was an AW RCR123. After an eternity of sanding, polishing and checking I realized that the new piston must be slightly shorter inside, the light works normally with a slighty shorter CR123A. I'm thinking about trying to dremel some material off at the top inside the piston, dangerous operation I guess, same thing for shortening the positive contact on the light engine...
As for the D10, I dremeled the top a little thinner, we can call us lucky sometimes, that only the last 2 millimeters of the top of the piston are visible when it's installed. I polished around the button, so the look is OK, but the light didn't work neither, the piston was slightly too short! Again, there seem to be differences. I took my solder iron and tried to get some solder points around the button, so that it can't slip in th ebody that far. That operation was a success, the light works (didn't try with a 14500, there's an L91 inside) and the button is still high enough for normal operation. Don't ask how the piston looks around the button now, but as I said, that's hidden inside the light. Instead of soldering points (which I'm not sure they will hold on), some washers (like in Jeff's great lights) would have been a better idea, but I don't have any in the right size.
Perhaps somebody knows more about those differences? Has anybody had to do some modifications yet?