My family has bought me a cnc3018, I can manually Move the spindle up, down, left right, backwards and forwards no problem, I can zero the axis but as soon as I try to run a test piece, everything goes haywire, when the blade should be in the air it is in the wood and visa versa, instead of starting in the bottom left it jumps to the top right. The cuts then start going from right to left instead of left to right., hope someone can help