Foot Helve sketch, design finalised

[Jacob]

You already have a treadle hammer, and it doesn't hit like a power hammer. Where is the new mechanical advantage that will make this one hit harder? It sounds like you're building the same thing, with some different angles, and expecting it to be something else. The best it will do is if you maximize the efficiency. Use a heavy solid anvil, heavy cross section supports, and good bearings with a proper fit. It will still get tired of drawing out that heavy cross section exactly when you do.