diff --git a/Hardware/CYCLONE_2/SampleGcodes/M8_keychain/M8_keychain.scad b/Hardware/CYCLONE_2/SampleGcodes/M8_keychain/M8_keychain.scad
new file mode 100644
index 0000000..57993f2
--- /dev/null
+++ b/Hardware/CYCLONE_2/SampleGcodes/M8_keychain/M8_keychain.scad
@@ -0,0 +1,23 @@
+
+l = 40;
+d1 = 15;
+d2 = d1*1.5;
+d3 = 4;
+d4 = 14.65;
+
+difference() {
+	union() {
+		square([d1,l], center=true);
+		translate([0,l/2])
+			circle(r=d1/2, $fn=40);
+		translate([0,-l/2])
+			circle(r=d2/2, $fn=40);
+	}
+	translate([0,l/2])
+		circle(r=d3/2, $fn=40);
+	translate([0,-l/2-d4/3])
+		rotate(90) circle(r=d4/2, $fn=6);
+	translate([0,-l/2-d4*1.3])
+		rotate(90) circle(r=d4, $fn=6);
+}
+