Hello friends, this is very cool idea to make grinding machine using old faulty hard disk.This is very easy to make, just follow all the step and make your own grinding machine. Parts: 1) Old Faulty hard disk 2) Brushless motor driver 3) Dc Socket 4) SPST Switch 5) Sanding Paper Share, Support, Subscribe!!! Subscribe: https://goo.gl/WfYhoR Youtube: http://www.youtube.com/c/easytechzone Twitter: http://www.twitter.com/easytechzone Facebook: http://www.facebook.com/easytechzones Instagram: http://instagram.com/easytechzones Google Plus: https://plus.google.com/b/106104977888299725337 Cover songs collected from NCS youtube channel: https://www.youtube.com/user/NoCopyrightSounds Track: TonyZ - Road So Far [NCN Release] Music provided by NoCopyrightNation Watch: https://youtu.be/MVMIwIJtMdU Stream/Download: https://NCN.lnk.to/RoadsoFar -----------