Instructables
Picture of Ultimate Sander
Have you ever wanted a sander,but is too expensive??
Now you can make one much more cheap.
By hacking you can make one under 10$.
Behold the ULTIMATE SANDER!!!!!!!!!!!!!!!
For POCKET SIZED don't see steps 4 &5.
Please vote for me in the various contests.

 
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Step 3: Hacking Again

Remove the optical head of the CD drive.The optical head is the part in the middle of the hacked CD drive.Identifiable features-lens,moves on a worm gear,connected to a secondary smaller motor.

Step 4: Battery Pack

 First strengthen the edges of the box to make it tough.
 Also add gorilla tape.
 Now Solder the battery holders together.
 Then solder the switch.
 Then make 2 large wires extend out.

Step 6: Cardboard

Cut cardboard strip the size of the space in the optical head and attach.

Step 7: Sand bit

Cut the CD such that only the white optical part does not get damaged. Then cut the sand paper such that it fits on cut CD strip. Then glue together the cut CD & Sandpaper cutout.

Step 8: Let it SAND!!!

Picture of Let it SAND!!!
 Now to sand attach the sand bit with the sandpaper side on front.
mikeasaurus3 years ago
Neat! How much load can it handle?
chandrahas aroori (author)  mikeasaurus3 years ago
The motor said 2500 rpm & start time 30s.i'm not very sure about what you ment by load i'm only 13
Alright, here's what we can figure out. Some of the first things you should know to figure out how 'strong' this sander is are the speed of the device by itself, the radius of the device (center of motor to outside of blade), the amount of mass the sander can handle (try attaching different amounts of weight and find out the least amount of weight needed to stop it when the sander's circular face is pointing toward you and factor gravity in). Using some of these numbers we can figure out just how much torque the sander can exhibit. Torque is basically the rotational force (how hard the sander pushes at an angle) and can be used to calculate how 'strong' your sander is. Now I'm not going to try to explain it all, but it would benefit you to visit the Wikipedia page on Torque. It probably won't be that strong, as the motor is made for lighter objects, and of course the wider the blade, the weaker the force it can exert (basically leverage)....
chandrahas aroori (author)  TheHawkeye3 years ago
Basically what I learned is that since it is a cd motor the torque is less.So for better results try sanding near the center.This is because- Torque=force*distance. Here the torque is constant and with a decrease in distance the force increases. But with an increase in distance the total force decreases.
In this case you can think of load as resistance. If you were sanding something you are causing a resistance to the plate spinning, causing the disk to slow down. If you apply too much load to your motor it will slow down and eventually stop.
Commercial sanders compensate for this by having a high torque on the motors they use, since the motor used here was never intended to be impeded I'm wondering how much load it can be under and still effectively work.
As it was a CD/DVD player it will have enough power to spin a CD/DVD. And probably not much more. No high torque here. Just enough to get a still CD to move.
chandrahas aroori (author)  mikeasaurus3 years ago
the motor said 2500 rpm and start time 30s.i'm not sure what you meant by load??
rkorampalli3 years ago
Cool idea Mr.Chandrahas Aroori. Keep posting creative & ideas, i will try them with my kid.

Thanks
chandrahas aroori (author)  rkorampalli3 years ago
Thank you nani maamaa please try and make it.
Nani Mama: I already did vote.

Chikki:

Chandu Bava, When i grow up i will make something i can put on your Ultimate Sander. I & Nanna will also try to make your Ultimate sander at home.

Also give me some good idea to do with small motors. I & Nanna removed small motors from a remote control car.

Untill i grow up, you & me will make things at the ultimate store, Because everything i build will be in Ultimate Store.This Ultimate store is in the middle of whole Florida. You have to come to Florida to see my Ultimate store. Have fun Chandu Bava. Do more creative things. I will send notes like this.

Thanks Chandu Bava
Chiiki
your the first person I have "met" near my age who likes to hack like me.
Hello I live to hack!!!What about you
Indeed, you can stop a CD moving with your fingers easily as little torque - the CD motor drive isn't designed as such, so it's hard to see how the sander will actually sand much. Nice idea though.
redlizard53 years ago
what is the optical head.
chandrahas aroori (author)  redlizard53 years ago
It is the part in the middle of the hacked cd drive.identifiable features-lens,moves on a worm gear
punkhead583 years ago
Wow, very innovative.
chandrahas aroori (author)  punkhead583 years ago
also please vote in the various competitions
I don't understand why this is in the Survival contest, but it's a good entry for the pocket sized contest. By the way, check out my survival instructable!
I agree.
My sentiments precisely. Great entry for pocket-sized.
chandrahas aroori (author)  punkhead583 years ago
Thank you its my first one and it is awesome
agis683 years ago
well actually I think there's another (earlier edition) of this hack. Using HDD or DVD-CD player......but its nice idea....