Folding Quadcopter

cults3d

I sourced the original design from multirotorpilotmag.com/fpvquad/. I printed out the original design but was unimpressed by its flimsiness. To address this issue, I made significant modifications to enhance strength: thicker arms, a stronger bottom plate, and a reinforced middle section to accommodate the walls surrounding it. The modified design features two compartments - one at the bottom for ESCs and another at the top for other electronics such as the flight controller, receiver, etc. I am utilizing the Naze32 flight controller, Turnigy 9X receiver, and NTM Prop Drive Series 28-26A 1200kv motors. The motor wires pass through the interior of the arms, requiring a precise fit. If this setup is not to your liking, feel free to make additional modifications; however, you may need to modify the arm design if opting for different motors. To gain insight into how everything fits together, download and open "Quad.skp" in SketchUp. I have also uploaded individual part designs along with their STL files. The front of the quadcopter remains open as I intend to create a custom case to house a GoPro camera, with plans to incorporate a gimbal for later use (though it's uncertain whether the quad can support such an addition). The battery is positioned underneath the quad, nestled between its legs, allowing space for a 4000mAh 4S battery. It's essential to select a battery that fits within the 118mm space provided by the legs. During printing, I encountered difficulties with the larger parts but found success in slowing down the print speed significantly on the first layer before reverting to full speed. For optimal results, I printed the arms at 75% infill and the remaining components at 25% infill. My printer of choice is the Mendel90 dibond.