I think your belt paths is going to give you inaccuracies. I’m looking at the belts behind your x/y joints and the belts aren’t parallel there. I can’t remember exactly why that’s bad but I think it ends up with uneven movement across the entire motion range.
I’m not exactly 100% sure on this but I’ve seen people mention similar issues to people doing ender 3 switchwire conversions.
It might even out because it seems like you have the same thing on both both belts behind the gantry but I would look into that.



I don’t remember seeing them do any specific sponsored content, though they may and probably have, but that have a very open affiliate program that every 3d printer youtuber I’ve seen is in. They also give out codes for streaming channels to give away filament.
All this I’m saying is I don’t think they’re “choosing” these channels but I doubt they care what the content in on any channel.