Neptune 2 filament sensor base

this is a base for the filament detection unit on a Neptune 2 for use when you upgrade to a dual drive extruder thingy. (I got the one from AliEx (seller '5A Plus') , which is great, after getting a truly crap one from Amazon)

The base raises the filament detector to allow for the height of the new extruder unit and includes a plug-in bit (which can be printed on its end so the holes work) to take a PTFE tube to allow for smooth filament feed (if you have upgraded to capricorn bowden tube you can just use the original tube for feeding filament). I will upload a 'filament reel-end' guide for the other end of the PTFE tube when I finish it.