C2 / Auto-level

Hi,

Be indulgent with my poor English writing.. french spoken guy!

Last Friday I tried to print a large part on my C2 and unfortunately it doesn't achieved the task.
See picture... Model breaks at middle of height maybe due to the nozzle smashed the top of the part.
.
Impossible to print any other part after that one.

Spent many hours to adjust, play with parameters on the printer to finally be able to achieve a print.

1x Keychain model

It seems the linear ball bearings (Z axis) are not well adjusted with the 2 stems. Tolerances are too large at my point of view (. The horizontal table is not perpendicular to Z axis and auto-level isn't able to correct that.
From back to front, at least 0.5mm difference.

Need your help!

Patrick

 

FYI: I had an issue where the Extruder was bobbling up and down, and it was actually one of the bearings at the top (X Axis).... It had popped out of the hole. This caused the carriage to go down during a right handed "Y" movement, and the up when a left movement (the belt was pulling it up and down). The reason this applies, is it would also show up during Z Height calibration.....

Also, I had a issue where the print bed was not level, and after several minutes, I found my tweezers stuck to the magnets under the build plate... Causing it to not be level......

Also, I had one of the magnets loose as well....

 

Hello,

Thank you for your comments and suggestions!

I fix it by myself.

@mark: Thank you for your help.
@John: I had the same problem with this bearing but I fixed it with black tape and it cannot slip out of the bore.

After hours of mechanic adjustments... A complexe part at 0.1mm without support, only build plate! Not bad at all! By removing burrs, all electronics components fit well.

Next step is 0.06mm.