Accuracy of 3D printed parts, 3D printer diagnosis - U20 AlfaWise

Do you want your 3D printed parts to be as accurate as possible? If yes, we have the same objective. I realized on my printer that it actually matters where on the bed is printed the part. I propose here a methodology for 3D printer diagnosis - spatial accuracy. Please let me know your feedback!!
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STL files: gum.co/vjyrT Here are also some related videos that I like:
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