Nakedanvil - Grant Sarver

That's a 4" radius, as Tim requested.

I don't doubt that a bit. Why I rarely claim to have invented anything. The only one I had seen prior was in "Machine Blacksmithing" but it has a corrugated mating surface so the rocker can be locked in position.

Naw, we just want to make sure everyone is aware and that we give correct information. After that, we don't care or judge what you do.

OK, I went back and read your OP. I see you have different pressure rated pumps. Yeah, that's a problem. Would be best to have a valve to dump the low pressure pump to tank when the system pressure is over 1500.

Don't worry, it's not a matter of submitting. The great thing about these forums is we can discuss opinions, experiences, sources etc. Hopefully, by doing so, we can all learn something.

I don't think you would have any problem if they are both rated for the same pressure. We're talking constant displacement pumps here. There is no way one can push back against the other unless one cannot maintain the same pressure output. Flow only goes from higher pressure to lower pressure.

From COPPER.ORG: Types of Copper and Properties The copper most commonly used for sheet and strip applications complies with ASTM B370. It consists of 99.9 percent copper, and is available in six tempers designated by ASTM B370 as: 060 (soft), H00 (cold rolled), H01 (cold rolled, high yield), H02 (half hard), H03 (three quarter hard), and H04 (hard).

Are you saying that 4 hours after annealing it will be hard again? So, how come I can buy hard, half-hard and annealed copper?

What will leaving it for 4 hours do?

Good job! Looks like just the thing for shingling.

Really awesome! So, how did you texture the iron?

Well you're outta the closet now, sorry! :rolleyes:

Yep, the first time you have a loose die of sorts fastened in like a saddle or using an outboard fixture, you discover how destructive that scale can be. First time I did it, the scale had gotten under the die and really chewed a pocket into my flat die. After that I put full skirts on them. Just amazing what scale can do to even a very hard die. Grease is interesting, sometimes it can make things worse as it attracts scale and forms a grinding paste. The small range of motion this will have in practice will probably make grease a good answer.

How much air is entrained? Enough for fish to breath!

I would add that fresh tap water is not the best. Tap water has a lot of entrained air that inhibits quenching. Boiled water or water that has stood for a few weeks is a much better quenchant.

Yeah well, it became apparent long ago that tool making was the key to productivity for me in the forge. So, I kinda morphed into a tool and die maker with all the required tools.

Yeah, the notch is circular and retains the "flatter". The bolt just holds the plate on the end.

Not bad for shop heat treated 4340, eh?

Here's my "no axle" design ordered by Tim (southshoresmith):

And then came the internet!

I don't think erosion would leave such sharp inside and outside corners. Looks carved out to me.

Looks to me like fraud. The cavity looks like it was carved out as the cavity is larger than the hammer. Anything I've seen that was similar to this, the "stone" was in intimate contact with the object. Think about how it would look if you cast plaster around it. Why is there such a gap between the hammer and the stone?

What sort of "hardy tool"? I'm talking about a square block with different edges.

Sorta modeled on this:

It ain't "vandalism" if it was his anvil. I'd bet he didn't do it without good reason. "Back in the day" they didn't worship their anvil as a shrine, they used them and often modified them for the work they were doing. An anvil is just a block of iron with a bunch of useful "features". I've added "features" to the face of my anvil before, usually made money with said feature too, often many time the value of the anvil. Why not just make some sort of hardy block? Well, that's OK up to a point, but there's nothing like pounding on a solid anvil especially when you got a lot of work to do. Rarely seen a feature added that rendered the anvil useless for general work.