HC-SR04 wallmount - casted

Assembly Instructions

This enclosure consists of three 3D-printed parts designed to encapsulate an HC-SR04 ultrasonic sensor in acrylic casting resin for improved durability and water resistance.

Parts

• Part A — Baseplate

• Part B — Front plate

• Part C — Back plate

• HC-SR04 ultrasonic sensor

• CA glue (cyanoacrylate adhesive)

• Acrylic casting resin

Assembly Steps

1. Insert the HC-SR04

   • Place the HC-SR04 module into the matching slot in the baseplate (Part A).

   • Ensure the sensor sits flush and the transducers align correctly with the front opening.

     

2. Attach the Front Plate

   • Position the front plate (Part B) onto the baseplate.

   • Fix it in place using small amounts of CA glue along the contact edges.

   • Allow the adhesive to fully cure before proceeding.

     

3. Install the Back Plate

   • Feed the sensor wires through the opening in the back plate (Part C).

   • Carefully position the back plate onto the enclosure.

   • Glue it into place using CA glue.

     

4. Seal the Enclosure

   • Apply additional CA glue along all seams and joints.

   • Ensure all gaps are sealed to improve water resistance and prevent resin leakage.

5. Fill with Acrylic Resin

   • Prepare the acrylic casting resin according to the manufacturer’s instructions.

   • Slowly fill the enclosure to avoid trapping air bubbles.

   • Allow the resin to fully cure before use.

     

Done and installed.