diff --git a/src/slic3r/GUI/PartPlate.cpp b/src/slic3r/GUI/PartPlate.cpp
index df761f00ee..6c4a75f06f 100644
--- a/src/slic3r/GUI/PartPlate.cpp
+++ b/src/slic3r/GUI/PartPlate.cpp
@@ -468,7 +468,14 @@ void PartPlate::calc_gridlines(const ExPolygon& poly, const BoundingBox& pp_bbox
 
 	Polylines axes_lines, axes_lines_bolder;
 	int count = 0;
-	for (coord_t x = pp_bbox.min(0); x <= pp_bbox.max(0); x += scale_(10.0)) {
+	int step  = 10;
+	// Orca: use 500 x 500 bed size as baseline.
+    auto      grid_counts = pp_bbox.size() / ((coord_t) scale_(step * 50));
+    // if the grid is too dense, we increase the step
+    if (grid_counts.minCoeff() > 1) {
+        step = static_cast<int>(grid_counts.minCoeff() + 1) * 10;
+    }
+    for (coord_t x = pp_bbox.min(0); x <= pp_bbox.max(0); x += scale_(step)) {
 		Polyline line;
 		line.append(Point(x, pp_bbox.min(1)));
 		line.append(Point(x, pp_bbox.max(1)));
@@ -480,7 +487,7 @@ void PartPlate::calc_gridlines(const ExPolygon& poly, const BoundingBox& pp_bbox
 		count ++;
 	}
 	count = 0;
-	for (coord_t y = pp_bbox.min(1); y <= pp_bbox.max(1); y += scale_(10.0)) {
+	for (coord_t y = pp_bbox.min(1); y <= pp_bbox.max(1); y += scale_(step)) {
 		Polyline line;
 		line.append(Point(pp_bbox.min(0), y));
 		line.append(Point(pp_bbox.max(0), y));