diff --git a/src/libslic3r/PrintConfig.hpp b/src/libslic3r/PrintConfig.hpp
index ce8a68a2d..e943dad8a 100644
--- a/src/libslic3r/PrintConfig.hpp
+++ b/src/libslic3r/PrintConfig.hpp
@@ -903,11 +903,61 @@ class SLAPrintObjectConfig : public StaticPrintConfig
     STATIC_PRINT_CONFIG_CACHE(SLAPrintObjectConfig)
 public:
     ConfigOptionFloat                       layer_height;
-    // supports
+
+    // Radius in mm of the pointing side of the head.
+    ConfigOptionFloat head_front_radius_mm /*= 0.2*/;
+
+    // How much the pinhead has to penetrate the model surface
+    ConfigOptionFloat head_penetraiton /*= 0.2*/;
+
+    // Radius of the back side of the 3d arrow.
+    ConfigOptionFloat head_back_radius_mm /*= 0.5*/;
+
+    // Width in mm from the back sphere center to the front sphere center.
+    ConfigOptionFloat head_width_mm /*= 1.0*/;
+
+    // Radius in mm of the support pillars.
+    // TODO: This parameter is invalid. The pillar radius will be dynamic in
+    // nature. Merged pillars will have an increased thickness. This parameter
+    // may serve as the maximum radius, or maybe an increase when two are merged
+    // The default radius will be derived from head_back_radius_mm
+    ConfigOptionFloat pillar_radius_mm /*= 0.8*/;
+
+    // Radius in mm of the pillar base.
+    ConfigOptionFloat base_radius_mm /*= 2.0*/;
+
+    // The height of the pillar base cone in mm.
+    ConfigOptionFloat base_height_mm /*= 1.0*/;
+
+    // The default angle for connecting support sticks and junctions.
+    ConfigOptionFloat tilt /*= M_PI/4*/;
+
+    // The max length of a bridge in mm
+    ConfigOptionFloat max_bridge_length_mm /*= 15.0*/;
+
+    // Now for the base pool (plate) ///////////////////////////////////////////
+
+    ConfigOptionFloat pool_wall_thickness_mm /*= 2*/;
+    ConfigOptionFloat pool_wall_height_mm /*= 5*/;
+    ConfigOptionFloat pool_max_merge_distance_mm /*= 50*/;
+    ConfigOptionFloat pool_edge_radius_mm /*= 1*/;
 protected:
     void initialize(StaticCacheBase &cache, const char *base_ptr)
     {
         OPT_PTR(layer_height);
+        OPT_PTR(head_front_radius_mm);
+        OPT_PTR(head_penetraiton);
+        OPT_PTR(head_back_radius_mm);
+        OPT_PTR(head_width_mm);
+        OPT_PTR(pillar_radius_mm);
+        OPT_PTR(base_radius_mm);
+        OPT_PTR(base_height_mm);
+        OPT_PTR(tilt);
+        OPT_PTR(max_bridge_length_mm);
+        OPT_PTR(pool_wall_thickness_mm);
+        OPT_PTR(pool_wall_height_mm);
+        OPT_PTR(pool_max_merge_distance_mm);
+        OPT_PTR(pool_edge_radius_mm);
     }
 };