Generate Quadcopter Frame Ultra - 7,73g

grabcad

This is my third entry to The Generate Quadcopter Challenge (https://grabcad.com/challenges/the-generate-quadcopter-challenge). I reduced the frame's max mass by 7.73g, although a simulation failure occurred with higher weight reduction. To optimize the frame shape, I assumed forces like electronics (42g), motor thrust (120g), wires (25g), battery (47g), and payload (250g). In this entry, I divided wire weight between electronics and motors (two parts to electronics and one to motors: 0.08175N each). The forces used in the simulation were electronics (with 4 speed controllers) at 0.57552N, motors (4 pieces) at 0.33681N, motor thrust at 1.1772N per motor, battery at 0.46107N, and payload at 2.4525N. The stand had no payload and accepted a minimum force of 0.01N. Two fly load cases were done: surfaces of payload mounting (Fly1) with components and full thrust, and area of the thrust (Fly2) with only component weights. Electronics, battery, and payload were mounted using adhesive-backed Velcro or zip ties. The software provided a great learning experience in shape optimization. The Generate link is https://generate-de.frustum.com/#/workspace/1177/scenario/3345.