The file 'OO Gauge Lineside Trunking Straight 160 Mm X 3mm X 3.2mm 3D Printer Model' is (stl,skp) file type, size is 203.79 KB.
These are good for FDM printing and need no supports. I have also made a video for you to learn how to create these in Sketchup Make 2017. My designs are for fun and are not prototypical in any way.
T section now added as well
straight_trunking.stl |
trackside_detailing_parts.skp |
T_section.stl |