The goal of this ROV is to go up and down, turn left and right, and glide through the water.
The Materials needed for this project are listed below:
-20 feet of wire
-3 rocker switches
-3 DC motors
-Small plastic box
-Auto-Desk Inventor software
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Step 1: Coming Up With a Concept and Printing
For my ROV concept I looked to space ships and underwater vehicles for inspiration. I focused on space craft because there was a wider range of ideas and designs than any current underwater craft. Throughout all of the designs I saw that each ship had a point at the front to pierce the water and a wide back part to help balance the boat. So I designed my ROV shell to have similar qualities. I started with a Y shape and expanded on the idea as the project went on.
I used auto-desk inventor to design the ROV. The file that I used is attached below. I used a maker-bot printer to print my design once it was complete. The print takes about six hours to print.
Step 2: Wiring
After designing my ROV, the next step is to wire the ROV. Along with the picture the schematic that I used for my wires will also be attached. The schematic and my wiring are very simple for this project.
Step 3: Water Proofing
Next step in preparing the ROV for the water is water proofing my motors and connecting them to my shell. For this part I cut three, one inch PVC pipes for my motors. The idea was that my motors would fit tight inside of the pipe so that they wouldn't move. After I put them all in I used Amazing Goop to secure the wires and keep the motors in place. I left the goop to dry overnight so that the glue would harder ans keep everything inside dry.
Step 4: Propellers
I used auto-desk inventor to design my propellers. I created a shaft in the middle and built off different planes to add the blades onto it. I then fillet the blades to make the more like cups so that could go through the water easier.
Step 5: Assembly
To assemble my ROV I just slid the motors into the holes that I had inside of the ROV. I used hot glue to keep the motors and the stray wires in place.
Step 6: Testing
After the propellers are attached, your ready to test this ROV. During testing the weight distribution was off so to help with that, I drilled holes in the front and then filled them with sand to add more weight to the front. This helped with the weight and made the ROV run smoother.
Step 7: Files
Here are the files for my ROV design and my propellers.