45 degree track bend (20mm)

thingiverse

The second component of the train set is the corners. A twenty millimeter gap exists between each rail, with every section measuring approximately sixty by one hundred twenty millimeters in size. The forty-five degree bend has an average radius of one thirty-three millimeters, while the inner rail boasts a radius of one twenty-three millimeters and the outer rail has a radius of one forty-three millimeters. Sleepers are spaced sixteen millimeters apart on the inside curve and twenty-four millimeters apart on the outside, except at the endpoint where they connect to adjacent pieces.