simple filament runout sensor end-stop mount

thingiverse

The name tells the whole story. I had an extra Z end-stop switch from my Anet A8 lying around after upgrading to a bed-level sensor, and since my Tronxy X5S-400 desperately needed a filament runout sensor, I decided to give this a shot. There are plenty of other designs out there, but I didn't want to mess around with Bowden fittings etc., so I made this as simple as possible. All you need are the original screws for the end-stop. I'm not sure if all end-stops will work with this design, though - it was specifically designed for the type like the A8 end-stops. If it's similar to that design, it should work just fine. Since this design doesn't feature a Bowden tube, I recommend printing it with your toughest filament because the filament grinding through the tunnel might hollow out the print over time. If that happens, you can simply print it again or look for a design with a Bowden tube. Please note that this thing is designed for 1.75mm filament only. I designed the tunnels with a funnel at the beginning where the filament passes through, making it easier to load the filament. You should also be able to print this lying down or standing upright - whatever gives you the best quality and toughness. This is a 3-gr print, so feel free to print it twice if needed. If you're printing it flat on the bed, use a smaller layer height, so the tunnel where the filament passes through comes out nice and smooth inside.