1 files changed, 9 insertions, 0 deletions
diff --git a/gimbal.scad b/gimbal.scad
index 4e1857a..192cc54 100644
--- a/gimbal.scad
+++ b/gimbal.scad
@@ -10,6 +10,9 @@ screw_dia = 25.4/4;
 mount_screw_dia = 4;
 mount_screw_head_dia = 10;
 
+// retainer wire hole diameter
+retainer_dia = 1;
+
 e = 0.01;
 $fn = 500;
 
@@ -73,6 +76,12 @@ module shell() {
 	    translate([0, 0, -d/2-rh]) cylinder(r1=0, r2=rh/2, h=rh);
 	    translate([0, 0, -d/2   ]) cylinder(r=rh/2, h=d);
 	}
+
+	// holes for retainer wire
+	for (i = [-1,1])
+	    translate([i*d/4, 0, -d/2 - base/2 - c])
+	    rotate([90, 0, 0])
+	    cylinder(r=retainer_dia, h=2*d, center=true);
     }
 }