Another spool holder that mounts horizontally (why fight gravity?). This ones fits my UltiMachine 5lb spool, which has a 39mm (1.5 inches) diameter hole. The OpenSCAD file is parametric in case it needs to be adapted for different spool types.The STL file is unnecessarily large because I set the OpenSCAD accuracy parameter ($fn) stupidly high. Feel free to re-render using $fn = 60 for a smaller STL file. The base includes some hollow hemispheres that could hold something sticky like rubber or sticky-tac in case it starts to wander. It also makes it look a super-cool moon base.No lubricant was required, but that may depend a bit on the spool plastic type and the printer plastic type (PLA in this case).