All files are printable without supports. Several parts have intentional covers over holes, which will need to be broken before use. this is for maximum printability. I remodeled the following files from scratch, changing measurements, and adding usability features along the way. links to original models: E3D Mounting adapter - https://www.youmagine.com/designs/monoprice-mp-select-mini-e3d-hotend-adapter by bbenchoff PCB 40mm Fan Mount - https://www.youmagine.com/designs/fan-holder-for-the-monoprice-mp-select-mini-pcb by kingofl337 Z-Axis Guide Rod Clamps - https://www.youmagine.com/designs/mp-select-z-axis-bracket by kingofl337 Control Knob Extender - http://www.thingiverse.com/thing:1692885 by seagas (Mine is modified to be shorter) 40mm E3D Fan Shroud, originally 30mm E3D Fan Shroud, by Tony Sleck, via MP Select Mini Owners Facebook Group https://www.facebook.com/groups/1717306548519045/ The "Manifold" STL differs only in one regard, the hole covers have been converted from separate entities, to be a manifold part of the mesh. this is in case you choose not to use the hole covers, you may split the other model into parts and remove the hole covers.