diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..3e60b3f
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,32 @@
+
+all: head_corner_front.stl head_corner_rear.stl head_cross_front.stl head_cross_rear.stl foot_corner_front.stl foot_corner_rear.stl foot_cross_front.stl foot_cross_rear.stl
+
+clean: 
+	rm head_corner_front.stl head_corner_rear.stl
+	rm foot_corner_front.stl foot_corner_rear.stl
+	rm head_cross_front.stl head_cross_rear.stl
+	rm foot_cross_front.stl foot_cross_rear.stl
+
+head_corner_front.stl: bracket.scad bracket.json
+	openscad -P bracket.json -D 'part="head_corner_front"' -D 'plate=true' bracket.scad -o head_corner_front.stl
+
+head_corner_rear.stl: bracket.scad bracket.json
+	openscad -P bracket.json -D 'part="head_corner_rear"' -D 'plate=true' bracket.scad -o head_corner_rear.stl
+
+head_cross_front.stl: bracket.scad bracket.json
+	openscad -P bracket.json -D 'part="head_cross_front"' -D 'plate=true' bracket.scad -o head_cross_front.stl
+
+head_cross_rear.stl: bracket.scad bracket.json
+	openscad -P bracket.json -D 'part="head_cross_rear"' -D 'plate=true' bracket.scad -o head_cross_rear.stl
+
+foot_corner_front.stl: bracket.scad bracket.json
+	openscad -P bracket.json -D 'part="foot_corner_front"' -D 'plate=true' bracket.scad -o foot_corner_front.stl
+
+foot_corner_rear.stl: bracket.scad bracket.json
+	openscad -P bracket.json -D 'part="foot_corner_rear"' -D 'plate=true' bracket.scad -o foot_corner_rear.stl
+
+foot_cross_front.stl: bracket.scad bracket.json
+	openscad -P bracket.json -D 'part="foot_cross_front"' -D 'plate=true' bracket.scad -o foot_cross_front.stl
+
+foot_cross_rear.stl: bracket.scad bracket.json
+	openscad -P bracket.json -D 'part="foot_cross_rear"' -D 'plate=true' bracket.scad -o foot_cross_rear.stl
diff --git a/bracket.json b/bracket.json
new file mode 100644
index 0000000..c03f839
--- /dev/null
+++ b/bracket.json
@@ -0,0 +1,27 @@
+{
+    "parameterSets": {
+        "design default values": {
+            "LegGap": "4",
+            "LegOff": "18",
+            "cornergasket": "5",
+            "footboard_y": "19",
+            "footboard_z": "130",
+            "footcrossyz": "38.08",
+            "headcross_yz": "25",
+            "headcrossgasket": "13",
+            "headpost_x": "38.08",
+            "headpost_y": "38.08",
+            "mate": "false",
+            "model": "none",
+            "part": "",
+            "plate": "false",
+            "platfoot_x": "50.44",
+            "platfoot_y": "25.42",
+            "platmid_x": "40.12",
+            "render_fa": "3",
+            "render_fn": "0",
+            "render_fs": "0.8"
+        }
+    },
+    "fileFormatVersion": "1"
+}
diff --git a/bracket.scad b/bracket.scad
index 8b05a86..e1c134a 100644
--- a/bracket.scad
+++ b/bracket.scad
@@ -14,7 +14,7 @@ footcrossyz = 38.08;
 headcross_yz = 25.00;
 footboard_y=19;
 footboard_z=130;
-LegOff = 19;
+LegOff = 18;
 LegGap=4;
 headcrossgasket=13;
 cornergasket=5;
@@ -210,6 +210,7 @@ if (part == "head_cross_front") {
 		foot_cross_front();
 		if (mate) { %foot_cross_rear(); }
 	}
+
 } else if (part == "foot_cross_rear") {
 	rot = (plate) ? -90 : 0;
 	zt  = plate ? platfoot_y+10 : 0;
@@ -264,10 +265,14 @@ if (part == "head_cross_front") {
 	}
 }
 
-if (model == "corner_leg") {
+module leg_corner() {
 	%footboard();
 	%headpost();
 	%left(LegOff)fwd(headpost_y+LegGap)platfoot();
+}
+
+if (model == "corner_leg") {
+	%leg_corner();
 } else if (model == "center_leg") {
 	%head_cross_bar();
 	%head_plat_mid();