QRM - Quad Rotor Mini

grabcad

Together with a friend of mine we started building a quadcopter from scratch. We wanted to build the machine and the electronics ourselves. We experimented a lot, but up until today we did not yet succeed in getting the bird in the air with the home build electronics. We keep having some trouble reading the data of one of the sensors, thus the PID loop doesn’t work properly. More information about out QR1 quadcopter can be found on QR1 quadcopter We recently bought the Hobbyking control board for quadcopters, and mounted this on the QR1 frame. It flew good, and we both wanted a proper quadcopter for flying purposes only. We recon the Hobbyking control board with other KK microcopter firmware will do the job perfect. We wanted the quadcopter to be small, and started designing a mini quadcopter. We used the same parts lots of other folks use in there quad, listed below: Motor: 18-11 2000kv Micro Brushless Outrunner (10g) ESC: H-KING 10A Fixed Wing Brushless Speed Controller Props: 5x3 Propellers (Standard and Counter Rotating) (6pc) Prop adaptors: Prop adapter w/ Alu Cone M5x2mm shaft (Grub Screw Type) Battery: Turnigy nano-tech 850mah 2S 25~40C Lipo Pack Control board: HobbyKing Quadcopter Control Board V2.1 (Atmega168PA) We ordered all the parts for an amazing 110 euro’s, you almost get it for free. After deciding which parts to use, we started designing the little monster. We came up with a design that we could machine out of 1,5mm aluminium, for prototyping purposes. We plan on making the final design out of carbon fiber. The quadcopter is only 176x176mm and will have a RTF flying weight of about 325grams. We gave it the name QRM, meaning Quad Rotor Mini.