Saw a picture on the net of a hammer made from a rear Differential from a car.

Guy up the road had a junk one out of a 73 roadrunner and I figure why not start collecting parts.

One on the net uses shock I am thinking coil-over shocks or maybe struts from a car (both can be bought used cheaply).

Took 11" out of each side.

T

The build Jock did using shocks was a bit of a disappointment IIRC.

As I remember, the shock absorbers did their job a little too well: rather than transferring the shock from the mechanism to the workpiece, it absorbed it. Who'da see that one coming?

On the other hand, I'm still intrigued by the idea of using a differential mechanism with a brake on one wheel to transfer power to the one driving the hammer. Keep us posted.

I'd think you could drive a dupont linkage using it.

I believe Jock redesigned it with springs.