Insulating joint bar bar for 7 1/4" gauge model heavy rail track
thingiverse
This is an insulating joint bar bar (fish plate) for 7 1/4" gauge heavy rail track. WARNING - THIS INSULATING PLASTIC BAR IS NOT AS STRONG AS THE USUAL STEEL PARTS. YOU MUST ENSURE THAT THERE IS A SLEEPER UNDER THE JOINT. This part will fit heavy rail crossections (141 lb, Iowa, Blazermate etc.) but can be adjusted to fit other profiles. If changing the profile I suggest printing a half length for checking first. The hole pattern suits rails drilled for RMI joint bars. Unless you are using the same rail profile and drilling details you will need to modify some parameters so the SCAD file is provided. USE AT YOUR OWN RISK, particularly if you are carrying passengers.
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