Not if YouTube interjects the ad after uploading and the location is randomized.

It’s only a matter of time before they start embedding them into the video like podcasts do and you won’t be able tell the difference between ad and video with software.

Yeah this is the way. I honestly forgot they had ads until I pulled a video up on my phone to show a friend the other day.

PolyTerra Matte

This is a mechanical issue with your motion system, not your bed. If it were the bed the probably would not be consistent between different bed surfaces.

I would make sure the roller paths are clear and flat the entire length of the path. More than likely that is the cause. Also check that the cables are sufficiently long so they aren’t putting excess tension on the tool head or bed at the extents of travel.