How to Calibrate Creality Ender 3 V4.2.7 Marlin Motherboard.
I had to replace my hot end on my Creality Ender 3. But then I got a heat runaway warning and could not flash my motherboard because it was too old. So I replaced the motherboard with the new 32 bit silent motherboard V4.2.7. I noticed the output was a little small by 1-3 tenths of a millimeter. Let's see how to callibrate the X, Y, and Z steps per millimeter.
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