The file 'Knuckle Couplers For The 1/32 OpenRailway EMD SW1500 3D Printer Model' is (STL,stl) file type, size is 746.1KB.
I've designed knuckle couplers that fit the 1/32 EMD SW1500 (http://www.thingiverse.com/thing:916416).
It wasn't easy as space is scarce but it works.
The hook and tang are cut in 2 so they can be printed without support (when printed with support, the result is too rough to ensure smooth operation).
SW1500_Front_gear_box.STL | 110.8KB | |
SW1500_Front_gear_box_cover.STL | 62.0KB | |
SW1500_Hook_A.stl | 559.0KB | |
SW1500_Hook_B.stl | 205.0KB | |
SW1500_Rear_gear_box.STL | 112.7KB | |
SW1500_Rear_gear_box_cover.STL | 130.2KB | |
SW1500_Tang_A.stl | 593.7KB | |
SW1500_Tang_B.stl | 340.0KB |