diff --git a/fightstick/body2D.go b/fightstick/body2D.go
index 8ff325a..0e11049 100644
--- a/fightstick/body2D.go
+++ b/fightstick/body2D.go
@@ -70,6 +70,14 @@ func bottomPlane() sdf.SDF2 {
 	return bottom
 }
 
+func innerWallPlane() sdf.SDF2 {
+	wall := sdf.Box2D(v2.Vec{X: 6, Y: BODY_SIZE_Y}, 0)
+
+	wall = sdf.Difference2D(wall, screwHoles())
+
+	return wall
+}
+
 // screwHoles produces m4 screwHoles along the sides of the piece.
 func screwHoles() sdf.SDF2 {
 	hole, _ := sdf.Circle2D(M4_SCREW_DIAMETER / 2)
diff --git a/fightstick/main.go b/fightstick/main.go
index 341b79d..61daca0 100644
--- a/fightstick/main.go
+++ b/fightstick/main.go
@@ -15,10 +15,11 @@ func main() {
 	render.RenderDXF(topPlane(), 600, "top.dxf")
 	render.RenderDXF(wallsPlane(), 600, "walls.dxf")
 	render.RenderDXF(wallCorner(), 600, "wallcorner.dxf")
-	render.ToSTL(wallFrontLeft(), 100, "wallfrontleft.stl", dc.NewDualContouringDefault())
-	render.ToSTL(wallFrontRight(), 100, "wallfrontright.stl", dc.NewDualContouringDefault())
-	render.ToSTL(wallBackLeft(), 100, "wallbackleft.stl", dc.NewDualContouringDefault())
-	render.ToSTL(wallBackRight(), 100, "wallbackright.stl", dc.NewDualContouringDefault())
+	render.RenderDXF(innerWallPlane(), 600, "innerwall.dxf")
+	render.ToSTL(wallFrontLeft(), 400, "wallfrontleft.stl", dc.NewDualContouringDefault())
+	render.ToSTL(wallFrontRight(), 400, "wallfrontright.stl", dc.NewDualContouringDefault())
+	render.ToSTL(wallBackLeft(), 400, "wallbackleft.stl", dc.NewDualContouringDefault())
+	render.ToSTL(wallBackRight(), 400, "wallbackright.stl", dc.NewDualContouringDefault())
 	for i, ele := range tops {
 		render.ToSTL(sdf.Extrude3D(ele, 3), 400, "top-"+strconv.Itoa(i)+".stl", dc.NewDualContouringDefault())
 	}