Thanks for the design! Printed and looks good thus far! My damper is 6mm thick, and my belt was slightly off center. I added a metal washer beneath the metal plate which goes to the frame to solve the problem.
Btw, how does long prints, when stepper goes hot, affect integrity of the spacer? I mean pla will become softer around 70C, do you see any changes in spacer geometry / melting after prolonged usage?