H0/00 Medium Rail 98.75mm
00/H0 3D printed rail. 16.5mm back to back, 98.75mm long
10mm holes on both sides with 2mm diameter. I used 20mm (2mm diameter) toothpicks to connect rail together
My Youtube: https://www.youtube.com/channel/UCfy0Jeki5d5OqkHdhmIv7Zw