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@@ -105,7 +105,7 @@ float Planner::max_feedrate_mm_s[XYZE_N], // Max speeds in mm per second
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int16_t Planner::flow_percentage[EXTRUDERS] = ARRAY_BY_EXTRUDERS1(100); // Extrusion factor for each extruder
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-float Planner::e_factor[EXTRUDERS]; // The flow percentage and volumetric multiplier combine to scale E movement
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+float Planner::e_factor[EXTRUDERS] = ARRAY_BY_EXTRUDERS1(1.0); // The flow percentage and volumetric multiplier combine to scale E movement
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#if DISABLED(NO_VOLUMETRICS)
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float Planner::filament_size[EXTRUDERS], // diameter of filament (in millimeters), typically around 1.75 or 2.85, 0 disables the volumetric calculations for the extruder
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