diff -r 14a420653a5f -r 9ec8fa3d0348 cylindertransport.scad
--- a/cylindertransport.scad	Mon Apr 03 01:32:02 2017 +0200
+++ b/cylindertransport.scad	Mon Apr 03 02:14:43 2017 +0200
@@ -3,7 +3,7 @@
 */
 module tank(x, r, h) {
 	cap = r;
-
+	color("SteelBlue") render() rotate([90,0,0]) {
 	translate([x, r, cap]) {
 		sphere(r = r); // bottom
 		cylinder(h = h-2*cap, r = r);
@@ -12,11 +12,13 @@
 		sphere(r = r); // top
 		cylinder(h = 30+cap, r = 25);
 	}
+	}
 }
 
 module spacer(x, r, rcylinder, h) {
 	cap = rcylinder;
 
+	color("DarkGrey") render() rotate([90,0,0])
 	translate([x, r, cap]) {
 		difference() {
 			cylinder(h = h-2*cap, r = r);