Ender 3 Filament Holder with Endcap

thingiverse

This is a remix of the <a href="https://www.thingiverse.com/thing:3353413">Ender 3 Filament Holder by random1101</a>. https://www.thingiverse.com/thing:3353413 It was a great replacement for the stock filament holder that came with my Ender 3 Pro. The stock holder did not turn. I did not like this because it looked like it created more friction with the spool that was necessary that resulted in more tension on the filament being fed into the Ender 3 Pro. The design by random1101 used bearings that allow the part of the holder in contact with the spool to turn freely, thus reducing tension on the filament as the printer pulled it into the extruder. It also has a smaller footprint so spools with smaller center holes would fit it. Though I must admit that in my year of 3D printing, all the filament spools that I have purchased have the same size hole. The one issue I had with the original design is that a filament spool fell off. The spool had worked its way along the holder and eventual fell off, twice. The solution was obvious once the problem occurred. The holder needed some type of lip at the end of the holder that would prevent the spool from sliding off. My change was to only one model, the En3_FilHolder.STL file. A disk was added to the end of the holder that was larger in diameter than the roller. This provides enough of a lip to prevent the spools from working themselves off of the holder. The two STL files that start with En3 are from random1101 original design. The roller requires two 10x15x4 mm bearings that I acquired from Amazon: https://www.amazon.com/gp/product/B00ZVBREP2/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1 Both the holder and the roller should be printed standing up to minimize supports.