This train track funnel customizer is most complex version of all. The funnel starts with one defined entrance, but could have countless end points.

The end points are defined as an array of:

  • exit position (X, Y),
  • exit orientation (alpha).

Then a 2nd order curve is calculated for each track, which will then be used with path_extrude() function from the amazing dotSCAD library, generating a smooth train track. Possible funnels:

Parameters

The funnel type is the main parameter for selecting pre-defined funnels:

  1. Two straight joiners
  2. Straight + straight w offset
  3. Two standard curves
  4. Duplo like switch (better use #2)
  5. Tripple straight joints
  6. 1 straight + 2 curves (45deg)
  7. 3 poly joints (30deg)
  8. Christmas tree (1 straight, 2x 45deg, 2x 30deg)

There are some more parameters changing small geometrical elements.

It’s also possible to create your own array of end points…

Dependicies

This customizer makes use of other tools:

Building tracks

These custom parts are heavily used:

And some builds from Olantigh:

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