Just sharing this with the group so people have a reference to what it looks like. I had the linear bearings fail in the central crossing block and the hardened steel balls no longer rolling grooved the linear bearing shafts. I've opened a help desk ticket to replace the rods and bearings, but again, just as a reference to what this kind of failure looks like. here's a picture.
This can happen in any brand and should not be a worry or complaint, just saying, stop before it gets this bad.
The biggest problem isn't the cost or the parts, it's the fact to get to these specific bearings in the central crossing head on an N1 requires a bit of taking much of the machine apart. Luckily for me, years ago I removed the side windows and front door (requires removing the upper black and lower black cosmetic case of the machine) such that hopefully, I can slide the rods out through the side after loosening in the sliding blocks.
Still, the central crossing block then requires the entire extruder assembly split and so this is a non trivial repair job. Hope this never happens to anyone else.
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