Between sessions we acquired two new items, those beings the actual drums sticks and the piece that attach the stick to the rotor. With those new equipment we were able to try the new version of the assembly, in order to fix the coupling to the drum stick we used sand paper on tree part of the sick to create a plane surface. The first test showed us that the stick was way too heavy for the motor to sustain the asked speed. So we chopped of the end of it and reduced the max speed from 30000 (in Arduino ide notation lol i genuinely don't know what is the actual corresponding speed) to 12000. After those adjustments we observed that we would need a support to resist the amount of vibration on the motor. 

So we designed a piece made for support, we 3Dprinted it in plastics but we forgot to dig holes at the bottom of the support, see next session. Anyway here what it looked like. 

See documents file SVG