Step 22 says that the lasers are spinning with the motors, but aren't they actually shining along the axis of the motor and hitting some sort of mirror?
Note in second photo of step 24 that there are what I'm guessing are laser diodes mounted co-axially opposite the motors, and that the top view of the motor barrel looks hollow. It would make sense to do it this way there is then no need to get power to a spinning component - the spinning part is entirely passive.
Однажды Они, Вы смогут просмотреть график вашего рейтинга, накопленного за всё время.
Репутация еще не заработана.