I just finished building a little jackhammer a couple days ago, for no reason other than I was curious how they worked, and there is no better way to find out than to build a working model.
The display stand is a small burl from a Popular tree. It is not a bolder, but a good representation of one.
Yes, it does go Rat-a-tat-tat, or maybe more of a Putt Putt Putt, but it does work, and only requires a few pounds pressure from an Air Brush Compressor.
