Here is a space saving spool holder to clean up your desk / work bench. Can be mounted on the ends of any Maker slide but it was designed for the Ord Bot.I printed it with PLA at .25 layer height, 50% fill and support (seems sturdy but a little more fill might make you more comfortable). Hardware: 1) Print two spool holders (and optionally the washers) 2) Tap the ends of the Makerslide with an M5 tap 3) Mount the Spool holders with 4 x M5 screws 4) Assemble the rod with the desired bearings (held with washers/nuts) at regular intervals (or without bearings with just washer/nuts at each end of rod) I've included large plastic washers that can be used as seperators. With 6 608zz bearings and 6 plastic washers, you can set up 3 spools perfectly spaced with this set-up.