MP Select Mini filament guide and filter combo

thingiverse

I wanted a filament guide that wouldn't cause kinks, but also needed a filter to prevent clogging issues. Rather than using two separate parts, I modified a filament guide from Thingiverse's Remix of https://www.thingiverse.com/thing:1788944. I added a small area for a sponge and edited it in Blender. You can also use cotton that doesn't leave particles on the filament. A tiny drop of oil helps too. The print settings were 0.1 mm, 50% infill at 200°C with 50°C bed temperature using Blue Gem PLA on an MP Select Mini printer. Supports are everywhere, not just the print bed. You could probably get away with less, but I wanted it to look nice because I'll be seeing it all the time. I plan to smooth it out later with acetone when I have ABS filament again. For now, blue is what I have left. Black or white filament would match my printer better, but blue will do. This design is specific to the Monoprice Select Mini, but you can easily alter it to fit any printer if you know the measurements. When adding the sponge, make sure the slit side is facing up so it won't come out. This way, the filament will prevent it from escaping. The purpose of the filter is to reduce hair and dust particles that get into the extruder and clog it. It works great! The size of the sponge area might seem small, but I've tested it for three days straight in a dusty house without any issues. If you can make it larger, feel free to remix and share so I can see and update everyone's designs.