New Toy For The Swimming Pool

[rwtdiver]

I am going to restore the shark build blog! Please go to page 3 where I will restore my photos and carry on with the build.

[RCSubGuy]

Looks like the files from CG Trader from the guy in the Netherlands who ripped off my design. He acknowledged he got the idea from me. I can't complain. He found the void and filled it.

I am, however, working on production of my RC shark kit with a partner overseas. Hoping for updates soon.

[RCSubGuy]

Bob,

I certainly hope this is not a problem for you that I have used his files (I found them on Cults) If posting this build up on Nautilus Drydocks is a problem, I will cancel my build blog out right now! I take exception to your statement that he ripped you off You put your YouTube build out there for everyone to see! He did acknowledge he got the design from your photos and went from there! It's a case of "should a would a" on your part!

Rob
"Firemen can stand the heat."

Rob, absolutely do not hesitate to use the files with the project or post your progress here. I appreciate you offering to take the blog down. That was not my intention in the slightest.

By ripped off, I simply mean he took my design and engineered solutions used it for profit on his side. That's a bit sketchy in my opinion. I'd be way more open to this having happened if he was sharing the files for free.

That will teach me to share my projects in such detail in the future, I guess...

[redboat219]

Chinese Robotic whale shark

[trout]

By ripped off, I simply mean he took my design and engineered solutions used it for profit on his side. That's a bit sketchy in my opinion. I'd be way more open to this having happened if he was sharing the files for free.

That will teach me to share my projects in such detail in the future, I guess...

Bob,
David has always shared his work in details. If you want you can list yours for sale at a comparative price or offer it for free. If this is not your files in any way, then it is flattering that he was inspired by you.
it is kinda a pi$$er though.

[redboat219]

Rob,
regarding the number of prop blades, sometimes less is more as David found out when he was building the waterjets for the Moebius Seaview. He experimented with 2, 3, 4 abd 5 bladed versions and found that 2 blades were more efficient, consumed less power and less load for the motor.

[RCSubGuy]

Are the thrusters going to be mounted internally or externally?

[Rick Teskey]

What is prop dia?
no stators?

[He Who Shall Not Be Named]

ANOTHER UPDATE:

My 40" shark is back on the workbench!



We had a great Divertible get together this afternoon, and I picked up some really great ideas from the group. I am still considering building the shark to scale. My Old Dremel 3D40 3D printed to give up the ghost and stop working. I am considering a printer with a much larger build plate so that I can achieve that goal. It's all challenging, and most of all fun....

Rob
"Firemen can stand the heat."

Consider taking your que from God and make the fin the propulsor. Two monster winch servos and you're off to the races. You operate in a small pool so you don't want speed and you can keep Bruce's big yap shut.

[redboat219]

.............

[redboat219]

The YouTube below show the very shark that I will be building.

https://youtube.com/shorts/yRy2YvpQhlI?si=EhwR5WO-L1JvKXe5

Rob
"Firemen can stand the heat."

Would mistake it for real thing.

[jphatton]

.............

For reference the original research publication PDF describing this robotic fish project can be found at the link. There are also some cross references at the bottom of the page to other studies & publicationss on robotic fish

https://www.researchgate.net/publication/259273119_The_Design_and_Prototyping_of_a_Wire-driven_Robot_Fish_with_Pectoral_Fins

[redboat219]

Complicated and extremely fun to build... Like my robot build... :-))

Rob
"Firemen can stand the heat."

[trout]

Looking forward to seeing your thoughts on this 3D printer as you use it. I am leaning to Bambu, but I do not have a driving reason at this moment in my life to pull the trigger. The larger printing plate is going to be a lot of fun to use! Thank you for your postings.

[redboat219]

Single pump- dual output. Diverter valve for differential thrust.