“5000W” GoldenMotor controller and motor

[Kburn77]

LFP is a bad influence, lol. J/K, how would anyone know this would happen? Hopefully you will find the solution and thanks for giving us the inside looky.

Have you tried to completely assemble the motor to see if it's somehow holds the stator correctly, maybe the circlip is pulling it off the magnets?

 

[liveforphysics]

For most every brushless motor, the moment you start to separate the case, the rotor always tips towards some point on the stator and sticks. This goes for hubmotors, RC inrunners, axial, etc etc.

Until the case halves are re-installed, and the shaft gets the proper bearing support from the other half of the case, it would be impossible to expect it to not bind.

This is perfectly normal. The inside of that motor looks like it's got a ton of power potential. A bit crude, but certainly has the needed bits to make serious power.

 

[gestalt]

HUZZAH!!! I finally got the damn thing to spin again. All it took was to take apart and put the thing back together oh, I don't know...about five times until I found the correct order. So lets just consider this look inside a complete success, we now know what is under the hood and I know alot more about dissasembly technique. Thanks to all of you for all the guidance on this issue, I couldn't have done it without you, or would have. Builds character. I now can breath a sigh of relief and continue with the work on the rest of the bike without fretting over my motor woes.

 

[Kburn77]

Awesome, glad you got it worked out, now install and let us know, lol!

 

[gestalt]

Yes exactly, I'll probably order the 8 inch inside dimension tube steel on friday to work into the frame. Since moving out here to Boston I don't have access to alot of the tools and equipment I did back home, so I was really pleased when a regular at my work said I could use his welder which is a block away. And to make matters even better one of the business owners next door to my work asked me if I could do a small welding job for him, he needed a one inch motor mount welded back onto his air compressor. We ended up making the deal that if he purchased for me a auto darkening welding hood I would do the work for him. So the hood came in, and I had that motor mount back on there solid in about fifteen seconds, and about half an hour for the whole process. Not a bad way to make $100 an hour.

 

[Kburn77]

That's awesome! I hope you take a lot of pics and keep us posted, I'm very interested in this motor for my next build, thanks for sharing!

 

[gestalt]

found a video of this motor actually being used, kick ass! looks like those crazy chinese have made a little light personel transport trike with it. much like some rickshaws I've seen pictures of from china.

video of it in action ---> http://www.youtube.com/watch?v=5uke2h3wpVE

If the thing can cart around five people with what looks like a reasonable amount of get up and go I am now sure the motor will be more than capable of powering my cruiser even with a passenger. It looks like I will be getting about a grand from my tax return this year, file early I always say. So that money will be battery money so if anyone has an idea how I can get enough lithium to do my bike justice for around $1000 I am all ears.

 

[grindz145]

Thats freakin awesome.^^ You can get about 50A-h at 48V of 20C lipo.... mmmm

 

[nicobie]

That thing looks as if it will tip over at the least excuse...

 

[docnjoj]

Actually the suspension looks pretty well engineered. The C/G looks low, especially with those giant lead-acid batteries, and the whole concept seems well designed. I bet it would be more difficult than it looks to tip over!
otherDoc

 

[gestalt]

I like the way almost the whole thing is made of molded plastic. The more light weight and powerfull battery tech gets the more I think methods like that will be used. Once you build the mold you can make many more quickly and cheep. I see a video of this thing bumbling down a dirt road in china and in my mind I see a fleet of these things scooting around a city center sporting ads and taxi lights. I bought that motor for $420 shipped and that vehicle couldn't really cost that much to put together. Batt tech would be the tough call, but if you had a fast charge system you could opperate a fleet of these in the city for next to nothing compared to a gas fleet.

 

[GoldenMotor]

haha. i'll make more videos of it once i have the time.