parametrize it.

microwave_turntable.scad

@@ -1,16 +1,18 @@
-module turntable() {
+$fn = 100;
+
+module turntable(height, cut_in_width, tube_radius) {
 	// tube
 	difference() {
-		cylinder(20,5,5,0);
+		cylinder(height,tube_radius,tube_radius,0);
 		translate([0,0,-1])
-			cylinder(30 + 2,4,4,0);
+			cylinder(height + 2,tube_radius-1,tube_radius-1,0);
 	}
 
 	// cut-in for the tube
 	intersection() {
-		cylinder(20,5,5,0);
-		translate([-11,-11,0])
-			cube([10,20,30]);
+		cylinder(height,5,5,0);
+		translate([cut_in_width,-15,0])
+			cube([10,20,height]);
 	}
 
 	// holder
@@ -25,11 +27,4 @@ module turntable() {
 
 // my own
 color("green")
-	turntable();
-
-// thingiverse
-translate([0,50,0])
-	color("blue")
-		scale([0.8,0.8,0.8])
-			import("thingiverse_microwave_turntable.stl");
-
+	turntable(50, 2.2, 5.5);