About this 3D model
Extend the length of the top mount spool arm for the Rostock Max. Print Left and Right side to replace the laser cut parts in order to use spools from MatterHackers (and other non-ultimaker filaments with wider spools) The Nylon part will fit the 3lb trimmer line spools of nylon and pretty much any other spool size out there. - Only 1 is needed