diff --git a/hcsr04_double_bracket.scad b/hcsr04_double_bracket.scad
new file mode 100644
index 0000000..81e1069
--- /dev/null
+++ b/hcsr04_double_bracket.scad
@@ -0,0 +1,8 @@
+include <hcsr04_sensor_mount.scad>
+hcsr04_mount();
+//flange
+	//holes for mounting - m3.
+
+//Side panels at angle - 10 degrees?
+
+// Bolt down back plated - m3 bolts.
diff --git a/hcsr04_sensor_mount.scad b/hcsr04_sensor_mount.scad
new file mode 100644
index 0000000..810f644
--- /dev/null
+++ b/hcsr04_sensor_mount.scad
@@ -0,0 +1,11 @@
+//hc-sr04 sensor mount plates with cutouts for transducers.
+// This is a 2d version - for extruding or otherwise projecting on your own designs.
+module hcsr04_mount() {
+	difference() {
+		square([45, 20], center=true);
+		translate([13.5, 0, 0]) circle(8);
+		translate([-13.5, 0, 0]) circle(8);
+	}
+}
+
+//hcsr04_mount();