CNC conversion of a MF70 PROXXON micro mill with ARDUINO UNO & GRBL inside

hi guys , below Utube vido show how i've converted a simple MF70 PROXXON mill to CNC with an ARDUINO UNO and GRBL in it .

PART 1:

PART 2:

PART 3:

don't hesitate if any question ...

and just for those interested with this kind of modification , below , the first project i've made based on the same principles but with complet DIY wooden frame :

wooden frame conception:

arduino and driver board

first tests: