Step 7: Assembly 3 and placing
Time to fix the wheel to the cage.
I prefer doing this by using magnets from old HD, but you can do what's best for you according to the type of cage you have.
Fix one magnet on his metal base to one end of the wood board using the small wood screws. Again try not to crack the board when turning the screws. I use to make a small hole in the board to help inserting the screw.