Trackmaster and Tomy Coupling Rod

thingiverse

Coupling rods designed for Trackmaster and Tomy trains are not interchangeable due to varying rod sizes. To test compatibility, standard Trackmaster and Tomy Rosie models were used. The coupling rods were printed using an Ender 5 Pro with Super Quality settings in Cura software. A perfect fit was achieved, but durability remains a concern when handled by young children. Only time will tell how long they will last. An update has been posted as the connection to the wheels can be tight, causing trains to slow down. A redesigned version is currently under development to address this issue. In the meantime, printing at 98% or 99% of original size may help alleviate the problem, although this solution has not been thoroughly tested.