10-27-2015, 06:08 PM
Well here is the first working 3D printed version of my O gauge fixed coupler for Marx, K-line, Lionel etc. It could use a minor tweaking and some dimension refinements. As is it looks good with an operating knuckle coupler and with each other however Lionel's 1970 fixed couplers are a bit tight. After some refinements will mount some on trucks and test them on curves, switches and crossings.
