My X1C arrived last Wednesday but didn’t successful complete the initial calibration. I then found out that the rod supporting the z-axis in the back wasn’t installed correctly. I filmed this video from the back with the backplate disassembled to illustrate the issue: Dropbox - IMG_7012.mp4 - Simplify your life
Any idea how to fix this? I’m writing mails with the support for a week now back and forth but all I got from them so far is the idea to push it back in place over and over again. But I don’t see a way to let it snap back in place without unscrewing some parts first. As I have no idea what to unscrew, I didn’t find the courage yet to try.
The lead screw also appears to be off-center and out of its bearing. I’d probably make a brief effort to pop them both into place. If you can do that, try to verify that they are still straight. If they are not straight, or you cannot get them into their correct positions, I’d return the printer to Bambu for a replacement. Whether mis-assembled or damaged in shipping, you should not have to make major repairs on a new printer. You bought a printer, not a kit of parts.
(So says the guy who is waiting for a replacement heat bed and camera )
I’m having a similar problem, my printer just came in and failed to do the initial calibration, after further inspection my back lead screw is completely bend.
So glad I found this forum thread! I was having issues with calibration on my newly delivered X1C as well. On calibration, the bed would reach the bottom of it’s travel and make horrible grinding noises. On trying to make the bed travel up to the print head, it would only get about half way and go no further. Upon opening up the back I found the Z rod was out of place.
I did find these two screws that you could remove, that allowed the plate with the Z-rod hole/detent to be flexed enough to allow the Z-rod end to be forced back in.
After pushing the Z-rod back into place and replacing the back cover, I tried to run a calibration again and still got the same behavior with the bed seemingly trying to go below it’s lowest point of travel (with the same horrible grinding noises.) As a last ditch measure, I forced the bed to the top of it’s travel (using the UP option on the movement screen. NOTE: You’ll need to dismiss a dialog box that says you need to Home between each UP press.) After the bed was at the top, I ran calibration again, and this time it worked okay. Seems like the machine was losing track of where the bed was and needed a bit of help to get it back to top orientation first.
This week have small metal wire stands that look like brass lying on the z-axis bearing front upper left hand side. And a twisted round metal wire piece lying on the bed bearing support, z-axis front left hand side. I have no idea where the twisted round metal wire comes from. At first thought possibly the acme threads were peeling off.
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