diff --git a/scad/base/hinge.scad b/scad/base/hinge.scad
index 589dde8..5e90ec5 100644
--- a/scad/base/hinge.scad
+++ b/scad/base/hinge.scad
@@ -51,4 +51,9 @@ module hinge(deg, len_before = 0, len_after = 0){
     translate([-len_before,0,0]) cube([len_before,7,6], center = false);
     translate([7,0,0]) cube([len_after,7,6], center = false);
   }
+}
+
+difference(){
+hinge(30,0,0);
+translate([0,0,3]) cube([10,10,10]);
 }
\ No newline at end of file