So if I am reading that other thread correctly, you put the flash LED behind the IR LED and used the pen body as a crude fiber optic to bring the flash around the IR LED.  <div>
</div><div>I was planning to put the IR behind the flash but I like your way better.  I also like the fiber optic link that was posted in that thread, saved it to favorites.  </div><div>
</div><div>Will the IR follow the fiber optic or is it only good for the flash?  I ask because I am also thinking that a light box mounted to the upper hull with fiber optics for both flash and IR down the gun tube would be an option.  If not then a light box for just the flash might work with the IR in the gun tube.</div><div>
</div><div>The truth is that I don't know what I am doing, it is all just an experiment.</div><div>
</div><div>With fiber optics and a light box I could also make the machine gun at the loaders hatch fire...   I think.</div>