Flying Wing UAV - Skinny-B

thingiverse

This is very much a work in progress, so I'm putting it out there for others to inspect and review instead of downloading and building right away. The designing part isn't finished yet. You can get the 'nightly' versions on Github if you want to take a look. OpenSCAD and Blender files are also available on Github. Skinny-B is a flying wing UAV platform that's primarily designed for long range and stability. It has a 130cm wing span and will be able to carry cameras and all the usual electronics found in UAV/FPV planes. The prop size could be as large as 12 inches, the motor cavity could hold a 35mm outrunner, and the belly-mounted avionics tray is roomy enough. The battery compartment has been designed to hold a 3S 5000mAh lipo which should give it over 30mins of flight time. Most of this aircraft's structure can be printed with a 200 x 200 build area and 160mm of height. The fuselage and wing tips come in about a dozen pieces that can all be glued together, while the wings have 15 printable ribs per side. One interesting feature of this plane is that it doesn't use horns and rods to connect the servos to the flight controls. Instead, the servos connect directly to the elevons so that the rotation of the servo directly moves the controls up and down. This design reduces drag and makes the plane a bit more robust and reliable. However, there's one trade off: no mechanical adjustment for trim or throw. Most people would be able to adjust this electronically using their RC transmitters, autopilots or FPV gear of choice. The total empty weight of the aircraft is 735g but since most of the parts require supports, this plane will need over 1kg of PLA to build. It may also require fiberglass reinforcement in certain areas - we'll see when I actually build one. Print Settings: Printer Brand: RepRap Printer: Prusa i3 Rafts: No Supports: Yes Resolution: 0.16mm Infill: 7% Notes: Only the fuselage, wing tips and wing ribs are printed. The wing ribs are reinforced with carbon rods and covered with solarfilm or equivalent material. Print these ribs vertically with supports. Use a 0.4mm nozzle and only one shell. Heat it up to a high temperature - up to 215 degrees - to ensure layers bond well.