Assuming it has a Ruida controller, make sure the STEP pulse polarity is correct:
This generally affects engravings, but eventually bites vector lines:
Regrettably, we don’t always know when somebody finishes the Happy Dance. 
Assuming it has a Ruida controller, make sure the STEP pulse polarity is correct:
This generally affects engravings, but eventually bites vector lines:
Regrettably, we don’t always know when somebody finishes the Happy Dance.