Here is a view looking direct down the firing axis at the coil. The top surface of the coil is very
flat, smooth which I think allows the disc to "see" more flux as it is touching nearly every turn.

The rubber band supports the golf ball, while it is waiting to be smacked into oblivion.
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ortable Induction Launching Equipment
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Pre Launch configuration.  The ball is suspended above the new coil and AL. disc.  The new
disc is heavier, (have not weighed it yet), thicker, and covers more of this new coil.  I will
machine a piece of aluminum later that will be an exact fit, and take advantage of all the
magnetic field the coil has to offer.

The four vertical bolts are used to hold a top plate later on when time comes to try firing at an
angle of less than 90 degrees. For now they make a convenient way to hold the golf ball.
The rubber band can moved up or down for experimenting with ball to disc distance.
The charge button.  Depress and monitor voltage at test points for the desired voltage.  This
momentary switch charges both the HV supply, and the supply for the contactor.
The contacts of the contactor.