Hi All,
I've just finished assembling my Prusa Mendel I2, but the stepper motors are acting weird!
At first, when I fire it up, all seems fine and I can move the different stepper motors with Pronterface.
But then when I've played around with it for a little while, the motors begins to "lag".
Actually I don't know how to describe it, so I recorded it instead.
Here I am trying to extrude. As you'll see the first 40mm went fint, the second 40mm almost fine and the third time it lags a lot.
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Here I've just pushed to X-home button, and as you see it reacts fine half the way, but then it begins to lag:
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Here it is trying to actually print, and it still does that "lagging" thing:
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I am really at the bare bottom here, so any help at all would be very much appreciated!!