Flashlight or Threaded Pipe Extender

**Note: You Need OpenSCAD to Really Use This Thing**
This may be useful to some of you. It's for changing a flashlight from 3xAAA power to an 18650.
I bought a cheap plastic LED zoom/focus flashlight at the dollar store for a buck. I thought, "Great, I'll just use an 18650 in it instead of those 3 little alkaline cells."

Surprise!, The tail end of my 18650 protruded out the rear end of the thing so far that I could no longer get the tail-cap on.

That's what this thing is for. It's a screw-on adapter/extender to fit my flashlight and make it just the right length. I still had to get it to pass power since I printed it is non-conductive PLA, but wrapping part of my [18650 cell adapter](https://www.thingiverse.com/thing:576817) with heavy duty aluminiuminuminah (Yes I am a British Muppet) did the trick.
Yay! A 18650-powered superbright zoomable LED flashlight for about a buck.(Plus $0.10 of PLA and a little foil. **I don't recommend using foil like this around lithium cells. It'