092. Trip HammerWhat you see below is only an approximation of the illustrated trip hammer. As with many of the more complex constructions, there aren't enough pieces.
Plus, the illustration wasn't all that clear -- certainly not enough for me to build this with any confidence.
That girder is attached to a 3-hole girder (2). The motion causes the 3-hole girder to move out and down. This girder is attached to the box that represents the hammerhead.
The other 3-hole girder (3) pivots on the other girder (4), attached to the inside of the frame. Thus, the hammer extends out and down to the surface.
The critical part of the machine, (2) isn't shown. I'm not quite sure how that 3-hole girder attaches to the frame, the 5-hole girder, and the hammer.
In a way, it doesn't matter. This toy requires three 3-hole girders. Only two come with the set. Plus, the dowel and collar construction is too flimsy to actually turn anything.
Since this was a non-working model, I just fudged the connections to the 5-hole girder at (2). So below is about as close as I could get with the material at hand.