Recommended · for some experience
3D printing guides: Calibration and why you might be doing it wrong
Why people recommend it
Argues that X and Y steps should come from the hardware maths rather than test prints, while extruder steps do need calibrating; cited often in 3D printing answers.
In their words
I've been watching this video 3D printing guides: Calibration and why you might be doing it wrong and at the start (at 0:30) three of the first Reprap printers are mentioned (and shown):
Greenonline on 3dprinting.stackexchange.com, Aug 2018. CC BY-SA.
See here for why you shouldn't calibrate your X/Y-steps.
Tom van der Zanden on 3dprinting.stackexchange.com, Jul 2016. CC BY-SA.
3D printing guides: Calibration and why you might be doing it wrong
Toon on 3dprinting.stackexchange.com, Jul 2018. CC BY-SA.
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