If you want the head to stay on better, super glue some small & thin magnets to the bottom of the head. I did this and it works so well you can lift BB-8 up by his head. It also doesn't impead his speed or functionality. I also put a small piece of tape over the magnets to keep from scratching the body.
The simplist way to clean the wheels is to take a Q-Tip, dip in alcohol and clean the wheels by rotating them. I know it's not as fun as taking the head apart but...
It wasn't mentioned but what is the speed of the A5 SoC?
Media vez obtengan, podras ver un gráfico de la reputación que han obtenido con el tiempo.
Aquí está una vista previa de cómo lucirá el gráfico:
Aún no has no adquirido reputación.