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RyanFromVA

Open Robotics, SeaPerch 2018 ROV, The Keepers, Beacon V4.1

by RyanFromVA Jun 7, 2018
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Ryan,

Good looking project, looks very familiar When should I expect my replacement frame?

Q.

Christmas is right around the corner sir!

I was looking for my next project. I would love to build this for our new lake house to map the bottom of the lake near our dock.
Would love your electronics list. Appreciate the inventor files too! I’m proficient in inventor specifically as I used it in my previous jobs.

https://www.seaperch.org/Parts_List
This list is a complete parts list for building the ROV and controller. The total cost will be roughly $30.
Attached as a file is the Construction Manual.

All files including IPTs and IAMs are zipped attached.

This is great work! Thanks for sharing.

I thought I'd share this too; It's a GoPro mount that replaces the back top bar. I designed it for my friend who used it to explore Lake Michigan.

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Great that you included your notebook, it makes for interesting reading. 3 questions: did the motors leak from the shaft, or was that water tight? What motors did you use? What software did you use for the hydrodynamic test/graphics?

1) The motors are watertight and have been tested up to 12'. Traditionally in SeaPerch, film canisters and wax are used to seal the motors, I chose to use 1" heat shrink to reduce weight. This worked great and kept the water out. I used small bits of melted electrical tape to seal the gaps. It was challenging to get the heat shrink to lay evenly and not create large holes. This was solved by slowing down and making better cuts for electrical components.

2) Motor Spec is attached to comment. The part number is 232022.

3) Autodesk Flow was used. It is available as a plugin for Autodesk Inventor or as a standalone program. Its technically set up as a wind tunnel and was used to test flow around motors and shrouds. Attached is a picture showing the plugin.

excuseme, cold u explain me better how u do for obtain waterproof motor? thank's

Here is a link to the page that contains videos on the complete build procedure.
https://www.seaperch.org/online_training_videos
The general idea is to use wax to seal a film container. The motor is put inside the film container and wax is poured around it. The wax cools and forms a barrier to keep the water out.

Here are the individual videos (these videos are not mine, but they are reposts of the original),
Prep, https://www.youtube.com/watch?v=dal6uLqf8I4
Water Proofing, https://www.youtube.com/watch?v=7R8ds_9T3iM

3D Printed solutions exist to replace the film containers. The film containers primarily serve to hold the wax.

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