Ahsaan7, Bro be calm... Be an example for the rest of the crowd here. I know they have this habit of pointing at others. No one looks within themselves before doing that. But remember to be calm and let people who point at you, keep pointing. Sending them a reply doesn't change their nature right?
I don't know if this speech seems a bit Political, but i have a hard fact to share with all you guys. The reason we are falling till day as a nation is because we have become nosy enough to point out at others and not see what we lack within ourselves. And Anger is becoming our worst enemy and trembling our nation's pillars even. Anyways, ur work is GREAT infact a very good DIY for all those pointy guys who are just sitting on their PC/Laptop screens and commenting and not doing anything themselves. But you do need guidance as well Ahsaan7 and remember the bearing needs to be greased or eventually it will become an issue soon. Accept this fact and don't loose your temper. Set an example for the upcoming youth dear.
P.S ahsanonline has given a very reasonable comment above.. Try cleaning the dust from the sensors dry or using some blower. I would advice you to avoid any petrol for cleaning the sensors.
Keep up the good work