M Prime One is a free 3D printer intended to be simple, low-cost and easy to build and use.FeaturesThe features of the M Prime One are:* Printing surface: 200x150x150mm.* 1.75mm bowden extruder.* Compatible with any hotend with 12mm diameter mount.* Magnetic bed, easy to place and remove.* Auto-level system with inductive/capacitive sensor.* Cable management integrated in the design* Integrated electronics holder (compatible with RAMPS or SAV Mk1, can be adapted to other boards)* Optional LCD holder (compatible with Smart Controller)You can find the updated BOM and instructions in http://mprime.io/how-to-build-an-m-prime-one/.