diff --git a/assets/5grad5cm.png b/assets/5grad5cm.png
new file mode 100644
index 0000000..405b729
Binary files /dev/null and b/assets/5grad5cm.png differ
diff --git a/assets/5grad5cm.scad b/assets/5grad5cm.scad
new file mode 100644
index 0000000..5e4e9af
--- /dev/null
+++ b/assets/5grad5cm.scad
@@ -0,0 +1,5 @@
+color([1,0,0]) rotate([0,0,0]) translate([0,0,0]) cube(10,true);
+color([0,0,1,0.5]) rotate([5,5,5]) translate([5,5,5]) cube(10,true);
+
+translate([20,-5,-8]) rotate([90,0,90]) text("<-------->", 2);
+translate([20,-3.5,-10]) rotate([90,0,90]) text("10 cm", 2);
\ No newline at end of file