Finished replacing the mainboard of my Malyan M150 with a RAMPS 1.4 after the former burnt out, followed the guides etc. Everything seems to be working ok, with all axis' homing properly like they did originally by hitting the min stops and backing off. However, when attempting to print, the Z axis motors move the extruder downwards for each layer instead of upwards. Really scratching my head on what is causing this, can anyone help please?
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