Wanhao/Prusa/Mono Price Maker Rear Filament Guide and Cleaner

This handy filament guide and cleaner works best for spools that are positioned behind the printer not on top. Filament cleaner uses cotton balls, sponges, or foam with a few drops of mineral oil. Version 2.0 introduces a strengthened printer frame mount  and reduces filament scraping. Version 2 was designed to allow a spool holder with tracks on either side of the cleaner without interfering with the spool.