MattzoBricks

Intelligent LEGO trains

Geometry: R104 Curved Switches

The R104 curved switch concept was invented by Mattzobricks in 2020.

The following illustrations describe the concept.

Type 1: SW-R104CR-16 / SW-R104CL-16

The idea of the R104 curved switch is to initiate two R104 curved sections that come out with a track distance of exactly 16 studs after 90° (from track middle to track middle).
The concept also works perfectly to create track switches within a 90° R104 curve section.
The concept can be extended by an infinite number of parallel tracks in the curve section.

Type 2: SW-R104CR-22.6 / SW-R104CL-22.6

There is also a 45° version of the R104 curve switch. The idea is similar as for the 90° degree version.
The difference is, that the parallel tracks come out after 45° already.
The 45° concept also works with parallel tracks.
This concept can also be extended by an infinite number of parallel tracks in the curve section.
Two 45° R104 curved switch section can be combined to form a double cross over within a 90° R104 curve section.
The example shows a compact entry to a 6 track station built with two R104 45° curved switches, three standard R104 switches and one R104 double crossing.

Type 3: SW-R104CR-32 / SW-R104CL-32

The third type of the R104 curved switch (SW-R104CR-32 / SW-R104CL-32) has a straight part of two standard straights (2×16 = 32 studs). Consequently, the two branching tracks come out with a track distance of 32 studs after a turn of 90°.
This switch can be combined with the 45° version of the switch.
The 32 stud version gives you more options especially when designing complex switch fields.

2 thoughts on “Geometry: R104 Curved Switches”

  1. Hi,
    kann man diese R104 Bogenweichen irgendwo kaufen? Bei TriBrix gibt es sie wohl nicht.
    LG Dietmar
    YouTube: STEINeZEIT

    Reply

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