Finished my FT5 R2 build a few months ago, but with a move and job change it didn't see a ton of use. This past week I brought it in to work to print some models, and I actually got a 63 hour print successfully completed with fantastic quality! However, a few short prints later and it has crapped out on me--the Y axis is binding really bad. I narrowed it down to one of the two linear rails, and even with the carriage free it is binding so badly it's difficult to move. It's been working so well up until now, but it feels so bad I wonder if I lost a bearing or something, though I don't see how that's possible since I have zip ties at the end of each rail as an extra safe guard against the carriage sliding off the end and they're still in tact.
Assuming that rail is toast--where have you all sourced better linear rails from?