Quadcopter frame. Frame with 450mm wide. Motors mount 16mm/19mm. Easy to print. You can help me to do more things like this. Buy my designs at pinshape:http://pinshape.com/users/27920-jsirgado The OpenSCAD file is there, you can change all.Use 4mm diameter screws to hold all together. Obs: Use 4 screws on top frame and 2 on bottom frame for each arm. 4 screws on top will hold the arm in place and 2 avoid vibrations. 2 screws on bottom will hold the body well. You can use multiple pieces (body_taller.stl) to make it taller. But maybe you need adjust the feet.