The 3D Printed Quadrotor

thingiverse

Finally - A Quadrotor Built for Daring Instead of Safe Flight! This innovative project has two versions to choose from and now you can build your own quadrotor frame by printing out four legs (or leg assemblies), a base, and a battery holder (optional) to create an extraordinary flying experience! The legs seamlessly slide into place and are held firmly in position with 1/4-20 x 1" bolts. This unique design is recommended for experienced pilots who are willing to push their limits, but be warned that the legs can crack if you land heavily on them - Fortunately, they're easy and inexpensive to replace! To tailor the quadrotor to your specific needs, SW files have been included so you can modify it for your own motors, boards, and receivers. In the gallery, you'll find a few stunning photos taken from high-speed video that demonstrate the maximum spring extension and compression of the legs. Instructions: To assemble your quadrotor, print the legs upside-down and the base right-side up, using large layer height and approximately 25% fill. Supports should not be necessary. The mounts on the base are designed specifically for a KK2.1.5 from Hobbyking, while the slot in the center is tailored for a hobbyking T6A receiver module. Additionally, the holes for motor mounts in the static legs accommodate a 16mm diameter bolt circle and the holes in the springy legs are for a 22mm bolt circle. As you explore different components to pair with your quadrotor, please note that 22mm mounts will fit perfectly with http://hobbyking.com/hobbyking/store/__5354__FC_28_22_Brushless_Outrunner_1200kv.html. For springs, you can use McMaster Carr's products: http://www.mcmaster.com/#9657k364/=wzzlmb and http://www.mcmaster.com/#9657k334/=wzzmcu. You'll notice that everything slides smoothly into place, but securing the arms might require a very long hex wrench or a compatible screwdriver - A custom tool like I used may come in handy. If not, long screwdrivers should work just fine, though you might find the assembly process slightly more complicated than anticipated!