hi guys.,
this is my first project, forgive for any presentation defects.
want a grinder made by yourself which is practically useful unlike usb fan grinder or hard drive grinder?
you gotta check this out.

Step 1: Unscrew the Table Fan Top

remove the top of the fan and actually remove the fan from the motor.it should look like the one in figure.

Step 2: Find Some Disc

get a disc which is made of a metal or it can be anything that is tough enough. see picture..

Step 3: Find Some Rubber Foam or a Cycle Tube

this is used for fixing the disc onto the rod of the motor.
and then fix the disc firmly may not be perfect.

Step 4: Grab a Piece of Sand Paper

take a sand paper cut into a spherical one with a hole at the centre for the motor rod

Step 5: Fix the Sand Paper on to the Disc

fix it and you can add some glue for it stick nice and clean.
But the best part of the project is that it works even if you dont glue the sand paper, all you gotta do is just pierce the sand paper and while grinding the force you apply itself binds the sand paper onto the disc. ain't that cool!

Step 6: And the Last Step

switch on the power and you can enjoy grinding this.
now this is useful for practical purposes, though it takes some time to do the things , it feels awesome using a tool made by yourself.... get going
and again i apologise for any inconvenience in the presentation.
hope you guyz like it. I would like to upload a video on its working . this thing is awesome bros.
#thankyou
and comments are always welcome
and please like this page by me
https://www.facebook.com/pages/Hacks-for-electroni...
would be a great encouragement