High!

Currently, I'm modeling an ancient mathematical co-prozessor... and with
its pins, a problem occurred. As they are somehow soldered to the
ceramic die's lower side, there is a smooth transition between the pin
itself and its flat round base. Any attempts to model this with blobs
resulted in monstrously swollen base cylinders, so I decided to do it
with a lathe, using Moray.

But when viewed from along the z axis, the lathe turns out to be
asymmetric (see picture)! Did this result from the fact that I did not
specify a fourth point on the y axis?

Here is the code:

#declare Pin_Raw=
cylinder
{
 0, <0, 0.0037, 0>, 0.0001
}

#declare Pin_Transition=
lathe { // RotSweep001
  quadratic_spline
  3  // control points
  <28.704931, 14.913935>,
  <5.999999, -0.033529>,
  <0.639678, 11.939946>
  scale 0.0001
  translate 0.00003
}


#declare Pin_Socket=
cylinder
{
 0, <0, 0.00003, 0>, 0.0006
}

#declare Pin=
union
{
 object { Pin_Raw }
 object { Pin_Transition }
 object { Pin_Socket }
 texture { T_Gold_2B }
}

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