After assembling my ANYCUBIC MEGA S and running the owl couple test print, it became apparent the Bowden tube/wire harness combo was rubbing up against the right side  Z-axis worm gear. I knew it would only be a matter of time before the bowden tube would fail. layershifter to the rescue with his Anycubic i3 Mega (Ultrabase) Cable Guide V2 : .

One other out of the box suggestion, wipe down the print bed with a little alcohol and a lint free cloth. This fixed first layer peel up issues.

I’ve been really pleased so far with the reliability and ease of print with this 8³” work horse.

 

ANYCUBIC MEGA S FDM 3D Printer bowden tube fix