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I love the shape of these vintage erasers. When I saw a whole bag of them for only 99 cents at Office Depot, I had this idea for ...
You will first need to download this .STL file, and send it to print.
I used an UP! 3D printer and it worked very well. It took me a while to optimise it, but I'll post that in an other Instructable.
I used White ABS with normal definition. I suppose that PLA would also work fine.
If you used a RepRap 3D printer, you will need to remove the support plastic with tweezers or needle-noze pliers.You might also want to use sandpaper to remove ...
Once you have the core, get 14 eraser tips. They come in many colors, so you have the choice!
If you want to be fancy and have a shiny surface, you can use a little bit of acetone. Be careful because it actually melts the plastic so ...
Insert the erasers!
If you DID abuse on acetone, you will need to put a little bit of glue for the assembly.
SURPRISE! The eraser-ball erases!
It also easily becomes a distracting office game. Have fun! -Sam
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