Question
Steve - where can I get replacement cord for the pendulum? I botched the routing on my first effort and it's rubbing on the frame and will likely eventually wear it to the point of failure.
The good news is the clock is still running reliably after 3 days!
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Assuming you are asking about cord for hanging the weight shell.
I use 65lb braided microfilament fishing line. This gives a 10X safety margin above the heaviest weight shell hung using a pulley.
Heavy duty upholstery thread could also be used.
Can you re-route the cord to avoid rubbing on the frame? Fishing line is designed to tolerate rubbing through the fishing pole without wearing out within a few days.