The head is designed to press the wire down with as little friction as possible, while constraining the wire position as close to the application point as possible without interfering with already-placed wires.
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Magnet wire is inexpensively available in a variety of gauges, and the integral insulation allows wires to be packed more densely than possible in flex circuit board manufacturing. For instance, in the planar lorentz force actuators below, the 80 micron copper wire has 10 micron insulation thickness, and so is packed with 20 micron spacing.
Magnet wire is inexpensively available in a variety of gauges, and the integral insulation allows wires to be packed more densely than possible in flex circuit board manufacturing. For instance, in the planar lorentz force actuators below, the 80 micron copper wire has 10 micron insulation thickness, and so is packed with 20 micron spacing.
The head is designed to press the wire down with as little friction as possible, while constraining the wire position as close to the application point as possible without interfering with already-placed wires.