My homemade GoTo

This video presents the GoTo system, which is completely made by me with support of my friend and some guys from Polish and British astronomy forums.
The system is based on amended Dobson's mount supplied by also homemade drives with stepper motors. Inside the black box on bottom of the mount is the Raspberry Pi microcomputer including software written by me. There is also database of object based on so called "Wimmer's Table" - list of object easy to reach for beginners using even small telescopes.
The project is open, so I expect developing it towards planets of our Solar System, comets and artificial satellites of the Earth - I hope so.
I have to make some improvements, especially solve the problem of strange noise made by steper motors during their faster work.
I hope you like mu GoTo system and its accuracy.
See you soon.