I dont know where you get your info but you are wrong. Ive never had a single CoreXY with allignment issues like this and ive gone through about 40-45 machines, both cheap and outrageously expensive. The only time the belt was riding ANY roller was either due to bad assembly or a failing part. IE One of the vorons had an idler gone bad due to deformation of its plastic holder. One of my crealities had a bad roller pin, again the belt was grinding causing defects and motion issues.
Other printers would run straight. And yes I did check for that. I check EVERYTHING in my machines so i can reassure you , you are wrong. Yes very tiny slight deviations will appear. Belt grinding is not normal and people will start to understand why I make such a big matter of this in 1-2 months that this grinding will cause their belts to be bent sideways. Note my words. You just dont want to accept that the H2D is halfbaked from start to finish.
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