120mm FPV frame for 8520/F3 Evo

thingiverse

This is my take on the FPV micro quadcopter frame. I've experimented with many designs and gone through numerous iterations to arrive at what I consider the final version. While this design isn't entirely new, having been remixed by many others before me, I've made some key adjustments that have worked out well for my purposes. #### What does it fit * F3 Evo 2.0 brushed flight controller (the budget-friendly option) * 8520 brushed motors (Racestar or generic brands work equally well) * AIO cameras like the Eachine TX03 * 65mm props #### The size I wanted to use 65mm props, which offer around 20-25% more thrust than their 55mm counterparts. They fit snugly on a 110mm frame and even on smaller frames like the 105mm one. However, the center part of the frame (flight controller tray) can obstruct valuable space under the propellers. After conducting some measurements, I found that using the same design with a 120mm frame resulted in a 10% increase in thrust compared to the 110mm version, and it weighs less than an extra gram.