Rovex, Triang etc train couplers
thingiverse
These are replacement couplers for the Tri-ang Rovex (and clones) Big Big Train. These trains are 0-gauge. Similar couplers are also used on Lima 0-gauge but I have not tested them there. The alternative sizes are for fitting to other models or toys. I have also included some compatible rotating magnet couplers in case you want to connect to other toys. The small rings are for reducing the hole size to suit some other toys. More about the BigBig Train is here: https://www.thebigbigtrain.com There is plenty of 3D-printable O-gauge track here on Thingiverse. Search for "OS Railway.". For my O-gauge track adapters see https://www.thingiverse.com/thing:5024058
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