Flying my 3D printed DIY FPV quadcopter trough some gates at my local RC flying club FK Gamen. Link to the page about my FPV quadcopter here.
I fly my RC Airplanes and quadcopters on LiPo batteries like most other people. But LiPo batteries have several disadvantages. The biggest problem is that their life is pretty short. They usually don’t last more than 100 cycles. Therefore I wanted to explore the possibility of using 18650 cells to power my RC models instead. I while ago I got myself a cheap battery spot welder from China and a couple of genuine LG HG2 cells.
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This video shows my DIY Motorized roller curtain. It is driven by a stepper motor. An Arduino Nano is used to read IR signals from an old TV remote and control the roller curtain.
EasyEDA project with schematic and PCB layout:
3D printed STL parts: