Quite far with the housing.

cad/open_box.scad

@@ -11,14 +11,13 @@ module open_box(width, length, height, thickness, allowance)
 	/////////////////////////////////////////////////////////////////////////
 	// Vars
 	/////////////////////////////////////////////////////////////////////////
-	edge_rounding = 8;
+	edge_rounding = 6;
 	compensation = abs(thickness-edge_rounding);
 
 	/////////////////////////////////////////////////////////////////////////
 	// Action
 	/////////////////////////////////////////////////////////////////////////
-	difference(){
-		
+	difference(){		
 		// Hull 4 cylinders which are compensated against the thickness
 		// so the actual desired thickness and edge rounding is always achieved.
 		hull(){

cad/playing.scad

@@ -1,26 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////////
-// Housing box for UppSense first tries.
-//
-// Author:              Maximilian Stiefel
-// Last modification:   26.04.3017
-/////////////////////////////////////////////////////////////////////////////////
-
-use <open_box.scad>
-
-/////////////////////////////////////////////////////////////////////////////////
-// Vars
-/////////////////////////////////////////////////////////////////////////////////
-length = 50; 
-width = 80;
-height = 45;
-thickness = 5;
-allowance = 1;
-lid_depth = 5;
-
-difference(){
-	// Using my open box module for creating a simple box 
-	open_box(length, width, height, thickness, allowance);
-	// Creating a depening for the lid
-	translate([0, 0, height])
-		cube([length + 2*allowance + 2*thickness, width + 2*allowance + 2*thickness, lid_depth]);
-}