Here it is without the sidings. It takes four 1 1/4" straights in addition to the 18" radius curves. It can be done on a 4' x 7' board.
After the crossing, use five 18" radius. Then one 1 1/4", then one 18" radius, then one 1 1/4" then five 18" radius on each side.
After the crossing, use five 18" radius. Then one 1 1/4", then one 18" radius, then one 1 1/4" then five 18" radius on each side.
![](https://scontent-ord5-1.xx.fbcdn.net/v/t39.30808-6/447999851_10161742492165522_2781545552200061105_n.jpg?_nc_cat=101&ccb=1-7&_nc_sid=5f2048&_nc_ohc=rIPVba2dXAEQ7kNvgEUZO7g&_nc_ht=scontent-ord5-1.xx&oh=00_AYDAWTuW3JMJAQu_eBpeOwlqHFNFA56bSxyGnlbz06K5Ew&oe=66693081)