So, tonight I decided to give something a shot.
Last year I had gchart build me a mini smart tailcap, which I got in October. Today I finally tried to install it.
First, I had noticed shortly after I got it that the fit was an issue. The D25Cās tailcap isā¦ Well, at this point I hate it. The board kind of sits on there loose and rests on a tiny little lip in the body tube at the bottom of the threading. But up at the top where the tailcap board would go, thereās a narrowing of the tailcapās internal diameter. I hadnāt noticed this or given the diameter to gchart, so the tailcap board didnāt fit up there.
Today I carefully measured and found the difference was about .80mm, and I indeed had an average of about .40mm (barely, in a few spots) that I could file off. So away I went. And I finally got the fit working there.
Next, I went to attach the smart tailcap board, and melted the Omten 1288 just enough to stop working. Nice one, me. Itās okay, I had a spare I grabbed off something. Got the board and the new switch on.
Next, whole stack was too thick. The old configuration had a thin metal washer between the switch boot and the top of the Omten. The new lit tailcap was in its place, but it was just too thick for how this D25C switch assembly is made. Even though I chose the .8mm thickness PCB. By comparison, the washer is 0.50mm - thinner than most of the components on the tailcap board, not just the board itself. I tried to use another, thinner tail switch PCB I had (to gain some space) but the fit wasnāt right for the shelf. And I ruined the second Omten 1288 I had. So, Iām fresh out now.
Fortunately EagTac sells the full assembled switch on a board on their aliexpress store, so I donāt have to worry about melting the next one I put in to get the light functional again. I have to just accept at this point that unless I can find a perfectly sized lit tail more in the style of Convoyās - where the LEDs are on the switch PCB itself - Iām not going to get any lit tail in this D25C.
Cool thing, though: I got the ābleeder resistorā right with some graphite (pencil lead) on the OTC.