Hardware Mods (5th Gen)Discuss on the "Hardware Mods (5th Gen)" forum for the MakerBot Labs group on Thingiverse.
I designed a corner mounted spool holder for the Z18. It's specifically designed for spools with a smaller hole like the XL and XXL from MakerBot, but will probably work with others as well.
During our testing we ran into an issue of needing a spool holder that was easy to print, held the material above the extruder, and fits nonstandard MakerBot spools. We ended up with this simple design that clips over the existing spool holder on the Replicator +
If you have any questions feel free to ask below!