Spool holder vertical for 2020 frame printers

This is just a basic universal spool holder setup to go with my 2 piece vertical holder using a piece of 5/16" or 8mm threaded rod and 2 to 4 nuts takes 2 spool wheels and 2 washers to reduce friction on the wheel from the nut still work in progress mounts your spool above the your extruder stepper so it feeds straight down