Longer LK5 Filament Sensor guide

This was based on a file I got off of the Longer mod Facebook group. I was intended to be used to keep the filament straight so the sensor doesn't fail and throw up an filament runout error.

The part it was bases on needed support to print and had other holes and parts not needed for the purpose of keeping the filament straight so I redesigned it to remove all of those parts and also so that it could be printed with no support. I also use about a 40mm piece of PTFE tube to keep the filament running smoothly and not wearing the piece out. Works great and no more false filament run out errors so far.