Where do I put the concentrator on the coil?

Where do I put the concentrator on the coil?

Answer:

If you place a C-shaped piece of Fluxtrol material on your coil, it will increase the magnetic field intensity (and therefore the heating power) on the part surface under the concentrator opening. If you place a thin plate of Fluxtrol in the gap between the coil and part, it will block heating of the part. In this case we refer to the magnetic piece as a shield, not concentrator.
If you place a C-shaped piece of Fluxtrol material on your coil, it will increase the magnetic field intensity (and therefore the heating power) on the part surface under the concentrator opening. If you place a thin plate of Fluxtrol in the gap between the coil and part, it will block heating of the part. In this case we refer to the magnetic piece as a shield, not concentrator.

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