Hey Taff,
Yeah, this is a huge downer for me! I'm pretty heavily invested in the DID, having 4 of them and a large collection of spare parts, and for this most critical part to become first defective, then unavailable is a real blow to me. Since I got my first DID I've been in love with that genny, and now it's looking pretty bad for the continued use of them.
I wrote Miriam at MMV asking:
> Did MMV make those top insulators, or were they subcontracted out to another maker?
> If another maker, might I be able to get those from that company?
> If MMV made them, might I be able to get precise dimensions of them so that I might attempt to engineer my own?
> What material are they made of?
>Are you aware of any other source of top insulator that would fit?
I've not as yet heard back from them. I too wonder how they could have sent them out like that! Did they even look at them before they packed and shipped them? Was there any quality control going on at all? You are right, I've spent a LOT of money at MMV, on Poldiacs, DID's and a raft of spare parts. This is a sore disappointment. No, I don't have the measurements for them, that would require a digital caliper which I don't have, but plan to get. I've asked MMV for those measurements, and hopefully they will provide them.
As for teflon tape I don't hold out much hope for that, but I'll try it. Two of my DID's are down now because of those insulators, with ohms jumping all over the place between 3 and 5 ohms with a .7 ohm build I've done thousands of times, and they just will not fire, even shortly after reading a solid .7 ohm at first when the new build was put on them. I'm really seriously bummed out here.
I've been scouring the web looking for another source for that part, but as yet nothing. Kidney Puncher used to have them, but not anymore. One likes to think that another atomizer uses a top insulator of the same dimensions and of suitable material, but finding it is quite a challenge. Perhaps the top insulators for DID clones would work, IF you can get them and anyone is bothering to clone the DID anymore.