STRYFE - 3D Printed 5" Optimized Topology Drone

So I realized that the bottom of the drone shouldn’t be part lightened all the way. It was definitely not strong enough to survive a crash. I made it so the part lightening only come down 2mm. Now, Similarly to the top, It is a lot stronger. Here’s a view of the new part (in black) and old part (in white)

Sooooo, something I was wondering is: Does the generative design arms I designed actually work? I tested the arms using Onshape’s FEA (Finite Element Analysis) software. I set the bottom and top pieces as fixed for this simulation just to simplify the simulation. In reality, they would deform along with the drone arms. I calculated that each motor would produce around 11.8 newtons. Of course, this doesn’t take in account crashes and such, so I set a roughly 20x safety factor of 250N to take that in account. I designed a quick mock-up of a normal drone arm to compare. I was surprised to see that both arms survived flawlessly! Though, the generative designed arm was lighter at 19.5g compared to the 23g of the traditional design.

Today I worked on organizing the part studios into folders and fixing the main assembly. I hadn’t set the limits to the mates yet, so I finished that. The arms are made from fusion 360’s generative design software so they should be stronger by weight than traditional 3D printed drone arms!