Lego Train curved Rack

Summary Curved Racks for a Lego Cog Railway ... living in Switzerland, it's no surprise that my kids had this request. These curved racks are compatible with the standard straight racks. There are different version of racks for 4 different radii depending on the position where it's mounted between the tracks. The STL-files have a postfix A..D as indicator (A is the for smallest radius). Print Settings Printer Brand: Ultimaker Printer: Ultimaker 2 Rafts: No Supports: No Resolution: 0.15 Infill: 30%