Stepper Motor Trouble w/ AccelStepper Library

Using Arduino Motors, Mechanics, Power and CNC
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  1. Please edit your post to use code tags.
  2. I can't watch the video right now, so I don't have any specific advice for you.
  3. Your question seems to be "If I run in full step mode, I get a different result to 1/8 step mode?" My answer to this is "Yes. You do get a different result."