Summary CAUTION...!! nothing is perfect so i still continue to update this project, some files maybe change any time... PS: all suggestions, question and discussion will be the best teacher for me... New update.... rear arm with screw.... i notice that rear arm have a weak spot on the axis... so i modified it with put a hole on the axis so i can put a 3mm screw on it as a bone... now rear arm can have much much strong axis... PS: use a 3mm diameter screw with long as long as the axis or close enough... This is alternative body for bigger battery.... all manual in link bellow: http://www.instructables.com/id/Printable-Foldable-Quadcopter-DJI-Mavic-Clone-Fram/ https://www.youtube.com/watch?v=wK-wxRZYP0g https://www.youtube.com/watch?v=pfA0y7ZANno my last remix : http://www.thingiverse.com/thing:2004357 --> all part are tested Print Settings Printer Brand: RepRap Printer: Pursa i3 Rafts: Doesn't Matter Supports: Yes Resolution: 0,2mm Infill: 50% Notes: for arm better using 100% infill