#Cut fingers from quad copter skin#

The kit adds $20 and about 22 grams to the drone so it’s not particularly expensive or difficult to implement. In contrast, the tip of the finger proxy introduced to an open rotor was completely destroyed. The rotor was completely stopped by the time the finger reached the rotor plane. In its present form, a complete Safety Rotor setup weighs about 20 grams. The rotor came to a stop within 0.077 s, with only light marks on the finger proxy from the impact of the hoop. This will stop the blades from spinning, in less than 0.06 of a second from the time that the finger touches the hoop. The rotor was spun at hover speed (1100 rads−1) and the finger proxy was introduced into the hoop at 0.36 ms−1 … The rotor and finger motion were captured using a shutter speed of 480 Hz. The safety functionality of the safety system was tested on the bench using a processed meat “finger” proxy to trigger the hoop, and also applied to an open rotor (without hoop) for comparison.

You can get cut to the bone by the largest models, which is nearly as bad as severing. This is why the largest drones have a circular guard around the blade. True, they can hurt you if you get hit by the blade of a larger model.

#Cut fingers from quad copter skin#

Ninety percent of the rotational kinetic energy of the rotor (as computed from angular velocity) was dissipated within 0.0216 s of triggering, and 99 percent of the rotational kinetic energy of the rotor was dissipated within 0.032 s. What To Do If You Cut A Chunk of Skin Off Of Your Fingertip or Toe If the tip of your finger or toe gets cut off, you need to take care of it right away. Blades on quads and RC planes (which are also drones) don't have much momentum. The rotor required a further 0.0474 s to come to a complete stop. The measured latency was 0.0118 seconds from the triggering event to start of rotor deceleration. A cage around the propellers spins more slowly than the propellers and is constantly on the lookout for biological material approaching the blades. The system constantly senses for a “finger” – in this case a hot dog – and then slams the rotor to a stop within 0.077 seconds. Researchers at the University of Queensland in Brisbane, Australia created so-called Safety Rotor to help prevent accidents with more powerful quadrotor drones. It’s a spinning sensor that will stop the rotors if your finger gets too close to the blades, thereby preventing you – or your kids – from getting cut.

The propellers will probably not cause much harm when the drone is. The folks at Spectrum have found a truly cool project for quadcopter pilots. These blades are sharp enough to cut through the skin.