My DIY Anvil...

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Jan 12, 2012
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I decided it was high time I get a working anvil going. This will be used primarily for blades, therefore the work face doesn't need to be huge, just larger than the face of a hammer. I had an older 12lbs sledgehammer head laying around that I found at my old house...ding, ding, ding. I figured I could make a bucket anvil using concrete and a 6gal bucket. Then, I had a friend give me several scrap metal plates that were all uniformly sized. Awesome, now I have a lot of mass that will transmit the kinetic energy down to a 3/4" steel plate under the anvil and back up to the face...I think that's a good thing. I know the extra mass is good.

Here are my materials, minus the Quickrete.



Now, never use a hammer to break out the bottom of the bucket, because you will crack it.



I cut out the bottom of the barrel so I wouldn't end up busting it out sometime down the road while in use.



I also had to grind down the corners of one of the plates so it could sit flat inside the bucket.




I forgot to take pictures of how the plates are arranged, but, when viewed from the side, they'd look like this:

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The plate I ground down sits on top of the other nine plates with the hammer head centered on it.

Then, I set the bucket on a piece of wood, filled it halfway with concrete and gently pounded the nine plates in place. I filled the bucket some more till the concrete was even with the top of the plates, then I set the tenth plate on top with the hammer head centered on it. I filled the bucket with the remainder of the concrete. I let the concrete start to set, wiggling the hammer head as it set. I wanted the hammer head to sit loosely so I could use some silicone caulk to mount it to reduce vibrations into the concrete around the head, it will also quiet any ring that the head may produce.

Here's the bottom plate I will use.



The concrete is setting.



Sitting on a scale...I was barely able to lift it enough to get it on the scale. BTW, that says 195lbs.



Now I just have to finish letting the concrete dry and use the silicone to mount the hammer head.

 
Looks like it should work. I'm not an expert but I would think that the silicone filled gap would be a negative to performance. Seems to me that any off center hit would cause the head to flex, creating inefficient blows. However I could also be dead wrong.
 
Will be interesting to see how it works out. Be sure to let us know. Concrete can crumble up on ya but worst case is ya gotta start over again.

Alot of smiths from places like India I think it was I remember seeing pictures of them using just the hammer head like you have, it is mounted in the ground or a piece of wood.
 
I've got a harbor freight cast steel anvil mounted in a big steel pipe filled with concrete like that and it's very solid. I didn't use any silicon though, don't know how that will work.
 
I got the sledge head mounted with the silicone. There was about a 1/16"-1/8" gap so it was a snug fit and I was quite liberal with the silicone. Now to let that set. I tapped it with a small ball-peen and had the hammer rebound as high as it started, about jumped out of my hand. I'll give it 24 hours to set and then I can test it with a lawnmower blade that needs straightening. I'm really hoping that after all this work, it will be usable and work for my needs for the time being.
 
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