my microwave turntable. should fit nicely.

microwave_turntable.scad

@@ -0,0 +1,35 @@
+module turntable() {
+	// tube
+	difference() {
+		cylinder(20,5,5,0);
+		translate([0,0,-1])
+			cylinder(30 + 2,4,4,0);
+	}
+
+	// cut-in for the tube
+	intersection() {
+		cylinder(20,5,5,0);
+		translate([-11,-11,0])
+			cube([10,20,30]);
+	}
+
+	// holder
+	difference() {
+		cylinder(3,25,25,0);
+		for(i = [0:120:360])
+			rotate([0,0,i])
+				translate([22,0,-5])
+					cylinder(10,15,15,0);
+	}
+}
+
+// my own
+color("green")
+	turntable();
+
+// thingiverse
+translate([0,50,0])
+	color("blue")
+		scale([0.8,0.8,0.8])
+			import("thingiverse_microwave_turntable.stl");
+