Off-Grid Boat - [DIY Electric Boat Motor | Adapter Rings - Ep.2]

My first, and most likely only, attempt to build an inboard electric motor housing/system to host 2 X 10KW BLDC (brushless) water-cooled Golden Motors. The hope is to be able to tap into re-generative possibilities to charge the sailboat Battery bank towards self sustainability and longer periods of off-grid living.
Blog containing useful links related to topics in this episode:
modularhippo.c....
Other useful links:
36' Aluminium Sailboat I am currently building:
bgyachtdesign.....
Motors I am using for my project:
www.goldenmoto....
(Sales contact: [e-mail])

[@johnmuir8878]

Hidden gem channel! Very, very cool.

[@modularhippo]

Hi John, Thank you for taking an interest:) It is an interesting subject indeed. Still a fair bit to go but will get their slowly:) As soon as I get motor back from welding next week it should start to come together. Next step is to focus on the mechanics that will allow me to tension the pulley belts. Then comes finding a place for motor controllers and the water cooling components. All fun stuff:) To be continued.

[@TheDigitalMermaid]

So your main reason for making the frame out of stainless was to prevent bending the metal under load? Do you think 10mm aluminium would actually flex? Very kind of you to share your designs, open hardware is amazing. ^_^ I thought about trying to copy your design, but I'm thinking for someone who wants to change belts often and quickly, a hinged approach might still be best. That sail, your designs have the mount points for the motor confirmed to be good.... Hrm. ;)

[@modularhippo]

My reasons for going for stainless were primary strength but also weight for stability. The motor on a boat counts towards the overall ballast weight, and even with stainless, I am coming in lower than the Yanmar I am replacing and have to compensate with additional lead weights. Saying that, I believe you would be fine with aluminium. Having a hinged version as you say would be beneficial or some form of spring-loaded belt tension system.

[@TheDigitalMermaid]

@@modularhippo Aaaah, ok. In my case, my batteries will make the stern heavier than before, so I've been thinking about keeping things as light as possible to stay on trim. Also, Al to Al would have less corrosion concerns, I figured. Of course, stainless is indeed stronger.

[@modularhippo]

@@TheDigitalMermaid - Makes perfect sense. For any SS bolts that goes into AL I use plenty of Sikaflex as proven to do the trick:) For any other connections I always have plastic spacers to make sure zero contact or the AL will start to sacrifice itself within days when throwing salt water into the mix. My main batteries are placed around the keel housing so in that area I will have to remove 200+ Kg lead instead.

[@rattusrat]

Thank you, interesting! Maybe I missed it but are you going to use two motors?

[@modularhippo]

Hi Rattusrat - Thank you for your interest. Correct, the idea is to run two 10Kw motors in parallel (let's see how it turns out in reality), ha ha:) - Just released Ep. 4 that should give a better picture of the 2 motors mounted:) Any questions let me know and I will assist. czcams.com/video/MaReKNz9kZ8/video.html

[@rattusrat]

@@modularhippo interesting. I am just planning a conversion of our 36 ft 9 ton sailboat. Plan to go with one 10kw golden motor since that is probably more then our old diesel will deliver. So will follow your build!

[@modularhippo]

@@rattusrat - Nice one, let me know if you will share build on CZcams as would love to follow your build. For 10Kw single motor the channel 'The Neds' have tons of good stuff:) czcams.com/video/Jbhem6H47n4/video.htmlsi=ZYUeE0dcjv6Jf2VY

[@larrydavisflysite]

Is there a 200 hp version?

[@modularhippo]

@larrydavisflysite Hey Larry! Thanks for your comment! This one hits 26-27 HP and is 20 Kw so 200 HP solution would requires some biiiiig motors:) - Saw that you have 'fly' in your name so of for aviation, then I would go for a pancake model as have better torque👍🏻👍🏻👍🏻

[@angusmcgil]

theres no reason for them to to keep grilling this guyu so ;long ,they know hell eventually freak out

[@TheTsunamijuan]

interesting video, but its a shame youtube threw 3x 2.5min adds in front of it, for me. For a 9 min video thats just abusive to you small creators.

[@modularhippo]

Wow, did not know that, understandably annoying to audience. Channel is not monetised so guess CZcams will take the opportunity to make the most of it. As you say, 3 Adverts in a 9 minute video is a bit excessive and is not helping the creators to deliver a good experience.

[@TheTsunamijuan]

@@modularhippo Yeah i wanted to say something. So if this becomes and increasing trend, you and the community as a whole, has a chance to do something about it. I made sure i watched your video fully though. Cause Honestly thats not fair to you or any other small creator.

[@modularhippo]

@@TheTsunamijuan Appreciated!

[@angusmcgil]

there are still a few functioning add blockers that work great i dont get any adds at all