I will look into the tool head being loose, I just followed the directions in the WIKI which says you can grease them if hearing an abnormal sound from them. I put a little dab of grease infront and behind on each side and slid it back and forth. Cleaned the rods with iso and applied a small amount of oil with a rag to the rails for the rust prevention. The very bottom says you can grease it.
I shimmed the toolhead chassis to the bearing, as described here: Extruder has play in Y-Axis - #41 by zviratko
this is the result.
I will call that success (unless the problem comes back, then I’ll set it on fire and sing Kumbaya)
So check if you have play between the toolhead and the rod, look from the right angle from the side or remove the back panel, you’ll see whether it’s between the bearing and the rod or the toolhead and the bearing.
I think I have fixed mine by swapping nozzles and cleaning/lubing the y rails. I am going to do some more testing this afternoon. Just out of curiosity did you have the copper sleeves for bearings or the solid chrome ones?
Solid chrome. There were springs on the front chassis piece and two tiny pieces of tape (one misplaced) as a shim.
Did you print that test cube? If not, do. I’m still getting tiny surface artifacts, but no inaccuracy (it is connected, but the surface finish is partly random probably due to the compensation). In fact, my X1C never printed this good, not even when new.
So I am pretty sure I have fixed the issue, I think mine was a combination of things. One I think the main problem was there was something wrong with my nozzle that I was using, I switched nozzles (to a bigger one because it was all I had at the moment) and I also think a lot of the bearings were needing lubed and that one of my tensioners was tight and not moving like it was supposed to. I live in a dusty area and TBH I think after lubing everything that it has probably needed it since I got it and just got worse from all the dust here. It is actually substantially quieter when the print head is moving around now, I think maybe quieter than is was when I got it lol. I still think I have a little filament tuning to do but it is much better than it was.
There are clearly many things that can cause similiar defects. If only you printed the test cube…
I did print a test cube, the infil never came out like yours, just bottom and top solid layers were affected.
I didn’t read the whole thread but I think I had the same problem and posted about it here. I had that problem suddenly pop into existence before this firmware update. I sent a bug report to Bambulab about this. But for me a factory reset of the device fixed it.
IMPORTANT: During factory reset even if it tells you to only move your bed to the center z height, put it to the bottom. If the bed is not at the bottom the bed will crash into the nozzle! Because it thinks it actually comes out of the factory and you just unscrewed the bed from the bottom