Mendel squaring axes
Find a flat, horizontal surface to set your printer on
Hang a plumb line from the top of the z-bar to make sure it is vertical. Note: if you have followed the jigging procedure carefully this axis will be square. However, if not, perpendicularity is adjustable. First check your surface which you're measuring on is horizontal. Then adjust the lengths of the frame sides by slackening/tightening the nuts at the frame vertices to change the shape of the triangle. You will need to loosen the z bars before the triangles will change shape.
Back to Mendel mechanical construction root.