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Apr 2016

So your first layer has to do with your z height at beginning of print. You should be able to take apiece of paper and slide it under the extruder tip when it is homed in Z. If it is too high the first layer will not adhere properly leading to problems. If it is to close it will begin to dig into the first layer on subsequent layers . As far as the z axis needs to be perpendicular to the x and y, if they are not it will result in the lean you are explaining. You may need to tighten up the union or ad a shim while using a steel square to square up the machine. Good luck you will be pro once you get this;)