Prusa Mk2s two-piece filament guide by DockGuy

Last crawled date: 3 years ago

Edit: I abandoned this approach as it is too fragile.
I liked Justanotherguys'a approach to a filament guide. A two-piece guide can be twisted apart to thread new filament and is simple to print. I re-designed the part to work with a top-mounted LCD panel and optimized the part thickness to print rock-solid. I also added a tiny tab to ensure the guide clips in place and won't vibrate loose.
This part has been tested with the Original Prusa i3 Mk2S where the top frame is 40mm x 6.25mm.
There is 30mm clearance between the top of the Prusa frame and bottom of the guide - plenty for the OEM extruder to reach maximum 210mm calibration height without interference.
The guide is centered ~40mm in front of the frame and is 10mm deep for excellent alignment with the filament entry on the OEM extruder
The guide is 30mm wide to allow some filament flex.
Most of the part is 4mm thick with key sections ~6mm thick for added strength.
Download one file and print mirror images or download both files.