Disc Sander




Introduction: Disc Sander

After using for years my laptop as flexible disc Sander through a supplied accessory, and securing it temporarily "a little here and a little there, I decided to DIY a disc sander fixing all recovery materials, to cost almost 0.
Before going in the description it is necessary to make a


Electricity is potentially dangerous. Don't do anything with it completely do not understand or do not have the slightest doubt about. Whatever you do, the result is your personal problem and you can't blame this instructable or its author. ' ' This is including personal injury, financial loss and any type of damage, including but not limited to the fall of civilisation and the total destruction of the universe as we know it '.


in other words:


(this phrase is not a threat but it is only by way of warning, of course)

Step 1: The Motor

the engine was recovered from an old dishwasher wreck.
First I disassembled the hydraulic part from the motor itself, and cut with a hacksaw and cut through the so-called "snail" in order to remove the impeller.

I removed all pieces of the rotor leaving integrates only the basis or support that goes to enter the pump through the pivot screw.

A heavy piece of wood (beech type) was used to create the disc, obtained with the bandsaw or jig saw.

In the Middle I run a hole that will accommodate the apical part of the post.

Step 2: The Disc

Contact glue PuTTY type I glued the two pieces together.
After a few hours I put the screws for a safer fixing, obviously by piercing beforehand, with a fine tip, to prevent sagging or cracking of the wood.

Step 3: The Velcro System

I opted, in my disc Sander, for a quick on-off sanding disc: the velcro system, which is already equipped with most discs that I got to see on the market.
I've got a velcro belt, of the type that also has adhesive on the underside and I covered the entire disc.

As you can see in the picture, I used velcro type complementary to that present on the lower surface of the sanding discs that I had provided.

The back of the plate has been resurfaced, for reasons "aesthetic" always with always hook tape.

Step 4:

After that I dedicated to the construction of the container of the motor with its support of the workpiece.
As material I used chipboard for construction and to support;

As protective material-electric parts cover I used a sheet of plexiglass from 1 mm fixed co of small screws.

Step 5:

After securely fastened with three screws on the front of the engine support, and have fixed the starting capacitor at the base through a simple hole the same diameter of the screw of the capacitor, I started to build the base of the workpiece.
As you can see in the first picture, it's a support that incorporates into it, through the fixing with screws, motor support, forming a single unit.

For the front cross, as he had to accommodate the lifting the hinge base plate, I preferred to use instead of wood chipboards for greater robustness.

As the base of the piece I used a MDF shelf that was coincidentally the right fit;

It was enough to run the channel at the swivel plate and fasten it in the right position.

When the base is lowered in its working position, you create in the bottom area a small Chamber that houses the sawdust, which, through a hole measuring approximately 5 cm, is extracted from a vacuum cleaner that I from time to time.

Since the pot turns counter-clockwise, I ran the hole in the right side of the lower Chamber.

Step 6:

To give greater stability and to mitigate any vibrazionial, I set of rubber along the bottom perimeter of the structure,
As I said, I used the plexiglass as a lid; of the pieces cut to size, fixed by means of small screws and connected with each other through a drizzle of hot glue.

Could not miss the power switch and power cord connections which was fastened from the inside with a plastic clamp to prevent inadvertent sfilasse for some traction.

In a final stage, not documented by photos, I colored Matt Black all over, except the base.

I preferred it in transparent Instructables.com community, it seemed a little more spirit "Spartan" typical of us instructables-mens.

Thanks for your attention, I hope I was of help to anyone, and if you vote my realization it will be greatly appreciated.

Hello from Torx



    • Water Contest

      Water Contest
    • Creative Misuse Contest

      Creative Misuse Contest
    • Tiny Home Contest

      Tiny Home Contest

    25 Discussions

    you did?
    Please post a picture or an instructable ... courage .

    you did?

    Please post a picture or an instructable... courage..

    Thank you friend.

    This is precisely a wash pump of a dishwasher.

    Great build. I love that you made your own disc sander. I like the transparent look to.

    5 replies

    Theirs isn't bad. I like mine better though. That's a lousy picture of it. Let me find a better one.


    From right after I first made it. At first I tried to use a wooden table, but it was too shaky. So I redid it in mild steel.


    Thats just an unneeded comment, were all glad you like yours better!
    be careful "pfred2" dont hurt your arm patting yourself on the back.

    its not really cheap cuz u r using a big motor..... its just good luck bcoz u had it and didn't need to buy otherwise it wud be too much expensive...
    but I really appreciate the idea of using Velcro....so u don't need to glue the belt..

    How simple and functional. I really like the see through part. Wouldn't it be interesting if humans were built similarly ...

    Is there a heat build up from totally enclosing the motor?

    2 replies

    you're right.Not heating very wel lthe engine will be a good thing to create ventilation holes,as I at a later stage I did

    Yes, it is difficult to provide circulation without also providing dust from operating the machine. Sometimes I think I should find a nice small corroborator air filter and make a holder for it on the intake area of the dust collection route. Say ... put a small filter I can blow out or easily replace at a big box store on the back of your see through box then provide suction below the table to pull the filtered air right through the motor box. Just dreaming ... maybe I'll try that one day for myself.

    Hi, Torx. Congrats for the build. I feel really happy to know I'm not the only one who likes to revive scrap into useful things. I made the same project with an old paper tape reader motor (imagine how old it is). The difference is - my table is fixed and I had to come up with a solution to change the sanding disks. Either you can't put the disk sliding it to the place, because it gets stuck by the velcro, or you cant take it out for the same reason. Solution: I made kind of a thin plastic sheet paddle (a spiral book cover, for example), with almost the same shape as the disk, and I manage to slide it between the disk and the velcro, and the disk comes off. To install a new disk I just have do do the opposite movement, keeping the new disk in place by hand. When the paddle comes off, the disk is fit in place. Great idea you had making a movable table.

    Best regards and more great ideas.


    2 replies

    You may need to move the little table in front up higher, so it goes through the center axis of the sander. Also, if you mount a removable blocking plate on the left side, you won't accidentally move the work piece to the left, and have it "catch" on the upward movement of the sander, launching the work from your hand and your hand into the sander.

    1 reply
    in fact the risk that signals me is real:

    attention is necessary to decrease the danger.

    Thank for comment

    Ha! Cool. Just as I was on the cusp of publishing a disc sander instructable as well... It will be a bit of a different beast, being a lot bigger. I like your build though - cool use of waste materials. Thumbs up.