How do I set the z-offset?
Using Octoprint or Pronterface, won’t connect to Cura LE which I’ll make a separate thread about.
I believe you can set it with M851 Z-1.2 (change the Z value to what you need). Save it with M500 and check it with M503 or M851. You can read up on these commands at http://marlinfw.org/meta/gcode/.
OctoPrint and Pronterface both allow you to input commands and see responses.
The Z-offset can also be set from the LCD if you have one.
I don’t have an LCD, thought about getting one, do I just need to buy one from the store? Only thing is it would cost more than I paid for the printer (I think the LCD was 80 when I looked last).
I think the z-axis is correct now, I’m realizing what got me initially was a dirty nozzle that messed up the bed levelling process. Have to keep the nozzle clean (but not with a metal wire brush!) and it stays working pretty reliably.
That wiping pad in the back is not the best of solutions.
Either way, thank you for the kind direction!