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Recycled HDD Rotary Sander for $5

Step 6Tests: Sharpening Knives

Tests: Sharpening Knives
With the high RPM HDD Platter, you can sharpen knives easily.

The folllowing videos show 3 stages: before grinding, being ground, and after grinding. The end result is quite pleasing.

BEFORE GRINDING:



GRINDING:



AFTER GRINDING:



P.S - The 2nd video shows and good technique of sharpening the knife if you have never sharpened one before.

Hope you enjoyed. Post lots of pics if you decide to build one and don't forget to clean the sander's insides with a fine camel-hair brush, once in a while after using it.

If you like it, subscribe to me for some interesting builds. Rate me too :)

Kabir
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1 comment
Dec 5, 2010. 2:20 AMigna94igna says:
Good work.
I'm going to build one now.
Thanks.

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Author:mhkabir(kabirs123projects)
M.H.Kabir is a green geek who likes recycling and loves instructables and DIY among other things such as microcontrollers, embedded systems and photography. He has done many DIY Green tech projects!He...
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