Sunlu S1 Plus Filament Dryer Box Filament Guide PTFE (M10) (Male/Female Screw Together)

I needed a simple adapter for my Sunlu dryer box to help guide the filament out a little better and stop rubbing along the plastic edges of the feed hole on the lid. My idea was to make something pretty solid to keep from snapping while trying to mount on the box and this is what I came up with.

In one of the pictures, I have highlighted the underside of the male part, in blue and arrow pointing to it, where I added supports in QIDI Slicer which is based on PrusaSlicer. Just basic supports on that one spot is all you should need with supports on build plate only.

Initially the male and female ends were a little resistant when threading together but I just worked it left to right a little to break in the threads a little and they screw together good and snug, at least for me. 

I've only designed this for M10 couplers at the moment since those are what I have more of on hand and allows the bowden tubing to go all the way out the other side. 

I have found printing with 0.12mm layer height works better than 0.20mm for allowing the coupler to screw in better, though not a requirement. At 0.2 layer height I couldn't get the coupler to screw all the way in whereas with 0.12 layer height, it went in better.

I printed mine with PLA, though I'm sure other filaments may work or even better than this. Printed perfectly fine first attempt for both parts.