t-slot filament feeder

I couldnt find exactly what I needed for filament guidance from my spool holder so I created this. It works well with my makerfarm and I think would work well for any other 20mm standard extrusions with t-slot nuts and 12mm m5 screws. I find that the PLA can make an irritating rubbing sound when feeding through this so I put a piece of cloth medical tape over beveled guider and it is now silent.