This feeder designs combines the two existing feeder designs from |Robert| and Geeks:- https://www.youmagine.com/designs/alternative-um2-feeder-version-two- https://www.youmagine.com/designs/extruder-um2-version-2- Body and latch by |Robert|- Filament guide and knurled wheel for tension setting by GeeksThis design erases the need for additional filament guides for Roberts Feeder and allows an easy adjustment of the spring tension without allen key.For assembly instructions see the original |Robert| design: https://www.youmagine.com/designs/alternative-um2-feeder-version-two#!design-informationAdditional assembly:- assemble the yoke at the body arm with the M3x35 screw and mount the knurled wheel with the M3 nut behind the spring with the washers- assemble the two wheels with 2x M3x10 screws