[EdHolland]

Thanks!

Hand crank, for lack of a motor, but that also enabled good control. The wire will lay without crossing if one is careful to set up the bobbin nice and true. It also helps to pack it a little to bulge the sides - this particularly for the first few layers. Once the stack builds up, it tends to have convex rounded surfaces, and the wire takes up with the angle as you say. I also found it helped to put a new paper under the first layer, to smooth the surface.