Eraser Cleaner/Refresher




Introduction: Eraser Cleaner/Refresher

About: I like to make things. Art, inventions, tools, ukuleles, etc...

My teenage kids draw a lot. And they erase a lot. When my son told me he sometimes has to clean the eraser before erasing, I got him some sandpaper. But the whole thing was rather messy as he was drawing on a bed. Not ideal. So I got to thinking…


Scrap wood

Wood glue

100 grit sandpaper


Dirty erasers

Step 1: Cut Some Scraps and Glue Them As Shown

The board I used is ¼” thick. The dimensions are not critical. Mine is 4 ½” long and the sandpaper is 1 ½” wide. This configuration works well. You could make yours longer if you want.

Step 2: Glue on the Sandpaper

I did this before gluing on the end caps because I wanted the sandpaper to reach slightly below the top of the end caps. I made a caul a little bit smaller than the sandpaper: 1½" x 4½" This is so that when gluing I could see the edges of the sandpaper and make sure it don’t move relative to the wood box. Then I clamped it.

Step 3: Glue on the Endcaps

The wood for end caps is about ⅛” thick. I made them slightly oversized, and when the glue had set sanded it flush and rounded all the sharp corners.

Step 4: Varnish

I used this gel polyurethane that you just wipe on with a paper towel. It was supposed to take 6 hours to dry, but with a fan on it, it was dry in less than 2 hours.

Step 5: Clean Some Erasers

I tried it first on a really grungy eraser and it took a fair bit of sanding to get it all clean. Then I did some newer erasers, and it was much quicker. Most of the crumbs got caught in the box. To empty, just shake over the waste basket. I think it will be a nice addition to the drawing routine...

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    1 year ago

    What a good idea!


    Tip 2 years ago

    So...really... you just need some scrap sandpaper


    2 years ago

    This is a really nice idea. I have always just run the eraser on the underside of whatever desk or table I was drawing at, since the underside of factory made wood furniture usually is unfinished and has the right amount of drag to clean the erasers really well. Of course that wouldn't work in bed... but what about the erasing crumbs from the drawing? Don't they end up in bed?


    2 years ago

    "If an eraser erases pencil, what erases eraser?" was a question I've always had in the back of my head. This is the answer :D