add lift_direction

allows configuring how to move the screw to lift the bed

macros/z_tramming.cfg

@@ -62,19 +62,27 @@ gcode:
   {% set probe = printer.configfile.settings.probe %}
   {% set tolerance = config.tolerance | default(probe.samples_tolerance * 2)%}
   {% set screw_lead = config.screw_lead %}
+  {% set lift_direction = config.lift_direction | default("CW") | upper %}
+
+  {% if not lift_direction in ["CW", "CCW"] %}
+    {action_raise_error("%s is not a valid lift_direction" % lift_direction)}
+  {% endif %}
+  {% set drop_direction = "CW" if lift_direction == "CCW" else "CCW" %}
 
   {% set variance = (left - right) | abs %}
 
   # If we are outside of tolerance, prompt the user to adjust the right lead screw
   {% if variance > tolerance %}
-    {% set right_is = "higher" if left > right else "lower" %}
+    {% set drop_bed = left > right %}
+    # Right is closer to the toolhead, which means it is higher up.
+    {% set right_is = "higher" if drop_bed else "lower" %}
     RESPOND TYPE=error MSG='{"Right is %0.3fmm %s" % (variance, right_is)}'
 
     {action_respond_info("01:20 means 1 full turn and 20 minutes, CW = clockwise, CCW = counter clockwise")}
     # One full turn will move the Z axis by the screw lead
     {% set hours = (variance / screw_lead) | int %}
     {% set minutes = ((variance / screw_lead * 60) % 60) | int %}
-    {% set direction = "CCW" if left > right else "CW" %}
+    {% set direction = drop_direction if drop_bed else lift_direction %}
 
     RESPOND TYPE=command MSG="action:prompt_begin Z axis needs adjustment"
     RESPOND TYPE=command MSG='{"action:prompt_text Tolerance is set to %0.3fmm" % tolerance}'

macros/z_tramming_settings.cfg

@@ -6,6 +6,7 @@
 # variable_left: 0 # Defaults to minmum position accounting for probe offset
 # variable_right: 169.5 # Defaults to minmum position accounting for probe offset
 # variable_speed: 150 # Defaults to safe_z_home.speed
+# variable_lift_direction: CW # The direction to turn a lead screw to lift the bed. Defaults to CW. Either CW or CCW
 gcode:
 
 # This is an example for a Sovol SV06