Hub motor project!

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Re: Hub motor project!

Postby torqueboards » Sun Jan 04, 2015 12:29 am

You guys are asking a lot lol.... It's simply just a beta run. Give the guy a break. Your either in or out. You want the guy to cook you dinner and offer you 100 year warranty?

The alternative is making your own.. but it's cheaper to buy in.

Anyhow, Dual hub motors should be good. I would probably only opt for a single hub motor for flat ground. IF you guys want to wait for results, wait after the first run.
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Re: Hub motor project!

Postby jacobbloy » Sun Jan 04, 2015 6:55 am

Silenthunter wrote:I would like to see a 5 min video with the dual set up in action. Full speed at 6S bombing some hills, breaking, start up....etc.


The videos are coming! We have had 43 degree weather and the 100km winds and rain havnt had a chance to get out and do some good filming!

The
Hummina Shadeeba wrote: by Hummina Shadeeba » Sat Jan 03, 2015 12:10 pm


The air gap is exactly the same as on a normal factory built outrunner. we have increased tolorance to actualy make that air gap more consistent.

The reason why I wasn't going to give a kv rating at first is because it is so hard to get the correct winding! Iv tested so many and some work and some don't as well, and yes I have had stators come that just don't have enough copper,

What we are looking at is trying to wind in Wye to reduce the kv of the motors but still keep the copper up,

If in Wye we need 12 winds and we can have 3 strands of 0.72mm wire (21gage)
Or 1 strand of 1.15mm (17gage)

If we wind in delta its 1 strand of 0.72mm or 3 strands of 0.51mm.

I'm not sure actualy how much but Wye windings reduce the power rating because of the higher resistance, but with the lack of copper in the stator in delta the copper can not handle enough current! And Wye is meant to be more efficient.

If the 6364 based hub motor works using the 5330 stator then his will increase the copper and give more power!

I hope I have put all the correct info in as I'm not at my desk but I just want to give the information.
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Re: Hub motor project!

Postby okp » Sun Jan 04, 2015 11:25 am

awesome!
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Re: Hub motor project!

Postby beto_pty » Sun Jan 04, 2015 11:43 am

why ask wye... :D

sounds awesome.. cant wait to break these..
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Re: Hub motor project!

Postby Hummina Shadeeba » Sun Jan 04, 2015 11:40 pm

I read that with the wye winding the amp ability of the motor will drop in comparison to delta but the coils are fed electricity in a series connection as apposed to the parallel connection of delta and therefore wye gives a fraction of the voltage while in delta the parallel connected coils get full voltage. so with wye you can add more volts given the same windings. But the stator iron is less able to sustain a fast constant switching of polarity at the higher voltage and could become saturated and that could also possibly be a limit on the voltage of the motor in wye
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Re: Hub motor project!

Postby addicted2climbing » Tue Jan 06, 2015 2:41 am

Hello Jacob,

I am starting to research and buy the items I need for a dual motor build and have a few questions.

Trucks:
I see you make mention of Paris or Caliber, but I am curios if I can use the SurfRodsz RKP trucks. If so do I need the 8mm versions? Also anyone on here try the RKP trucks?

Speed Control:
Torqueboards has a nice 2 motor control setup for sale, but curious about others? Whatever I buy, I want it to be compatible with the Wii nunchuck torqueboards sells. I know others use Alien. The new ESC on here will likely not be ready yet so chances are I will buy one of the above mentioned or another if you recommend something else.

Take care and thanks for offering the beta build...

Marc
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Re: Hub motor project!

Postby Hummina Shadeeba » Tue Jan 06, 2015 2:45 pm

How bout a really simple video you could do on a bench even? My paypal account should finally have the Dillard's soon and then I'll send it on. How many kegal motors are already accounted for? I plan to get 2 and 4 wheels tomorrow if not today but the eBay link is down saying sold out. If I send the PayPal to your address will I get them to me soon still?
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Re: Hub motor project!

Postby Hummina Shadeeba » Tue Jan 06, 2015 4:55 pm

liveforphysics wrote:If designed right, I've got no doubts they can deliver all the torque needed for hills and things. Justin's hubmotor skateboard climbed the very long steep hill I live on like it was nothing.

Hubmotors seem like the sensible path for skateboard drive IMHO.


Justin's old setup was two motors that were 60mm. His newer motors...? Maybe there were two as well when u saw


Someone else mentioned the torque on the skate axle. If this wheel/motor is solely affixed to the axle...that's really a lot of torque against the axle with accelerating or braking. Axles are often just pressed in. Not designed for spinning forces. How is it held to the axle?! Only thing I can imagine is like a lockring on a track bike rear wheel. That works very well Pressed in or cast in hopefully it holds cause I just sent 320aus for the 4 kegal wheels and two motors to Jacob's PayPal! Maybe these should only be used with trucks that have a more secure axle
Purple hopefully.
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Re: Hub motor project!

Postby whilechukwuzout » Tue Jan 06, 2015 7:57 pm

Interesting project. First- my hats of to Jacobbloy for taking the first solid step into developing this concept into a product. Mark me down for 2 for sure.

Have you done any shock and vibration testing?
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Re: Hub motor project!

Postby jacobbloy » Tue Jan 06, 2015 9:24 pm

whilechukwuzout wrote:Interesting project. First- my hats of to Jacobbloy for taking the first solid step into developing this concept into a product. Mark me down for 2 for sure.

Have you done any shock and vibration testing?


If you take these motors they are the last 2 for sale!

Can try and put some others to gether if the factory hasn't started production but at this point it's that's all done!

Thanks to every one! I'm working really hard to get back to every one's questions!

Aim to ship or have you opening your hub motors by the 6th of feb! Will keep you updated!
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Re: Hub motor project!

Postby Hummina Shadeeba » Wed Jan 07, 2015 11:47 am

Seems Orange is 80 and purple 83 duro. Anyone tried both or either? If the Orange are actually softer I'd rather get them, otherwise the purple color is nice
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Re: Hub motor project!

Postby vedder » Thu Jan 15, 2015 11:07 am

Too bad that I missed this thread. I would also have been interested in two hub motors, possibly trade them for two of my custom ESCs.
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Re: Hub motor project!

Postby torqueboards » Thu Jan 15, 2015 11:15 am

vedder wrote:Too bad that I missed this thread. I would also have been interested in two hub motors, possibly trade them for two of my custom ESCs.


I'm pretty sure he'll have a few extra.. I'm sure he wants your ESC :mrgreen:
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Re: Hub motor project!

Postby Silenthunter » Fri Jan 16, 2015 7:15 pm

How come there is so much talk and not even a video posted after all this time?
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Re: Hub motor project!

Postby jacobbloy » Fri Jan 16, 2015 10:01 pm

Because I have been working on it, and working on compiling as much information as possible, I have been winding stators for testing and have been placing orders for Cnc, parts.

All motors will be shipped by the 6th of feb at this point we are on schedule. I have my second knee surgery on the 10th of feb so I don't want any delays from that, so I am pushing for all motors to be ready and shipped asap!
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Re: Hub motor project!

Postby jacobbloy » Fri Jan 23, 2015 4:21 am

Silenthunter wrote:How come there is so much talk and not even a video posted after all this time?



Hi guys I had a bit of time so iv uploaded a video to YouTube.



Also some updates!
I mentioned this in the video but the chime while breaking was and effect of using a hobbywing esc!
I found this while playing with my 1/8th monster truck that uses the same ESC, I had mentioned before that the problem was fixed by using ABS caps instead of alloy, but I put the ABS caps on the board with my alien ESC and there was no chime, stupid me didn't think it was the ESC that had changed.

I had ordered carbon fiber caps that are lighter and should be the same strength as the 6061 alloy caps but they also look good. If you all don't like them I'll have to have some alloy caps made!

Photos of the progress!

image.jpg
20 kegel wheels, 80 more to come
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image.jpg
Kegel wheels waiting to be Cnced
image.jpg (41.79 KiB) Viewed 1424 times


image.jpg
Shafts waiting for milling
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Carbon fibre caps finished with ceramic bearing
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image.jpg
Motor cans waiting for nikel coating
image.jpg (40.21 KiB) Viewed 1424 times
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Re: Hub motor project!

Postby torqueboards » Fri Jan 23, 2015 6:22 am

Great work Jacob! Can't wait to give them a try. The Hobbywing ESC and the HK ESC are both pretty loud compared to other ESCs.

Trade Ben Vedder for (2) ESCs :)

Carbon fiber caps look great too.

Are we still on schedule for the 6th of Feb? I might just have to get a quad motor setup lol.
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Re: Hub motor project!

Postby tung256 » Fri Jan 23, 2015 6:40 am

in the video, there's a lot of talk. lol. but the fun starts at 16:00 mark with the motor spinning. good job dude!
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Re: Hub motor project!

Postby torqueboards » Fri Jan 23, 2015 6:45 am

Just finished the video. Looks great can't wait to take it up some hills.
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Re: Hub motor project!

Postby jacobbloy » Fri Jan 23, 2015 6:54 am

torqueboards wrote:Great work Jacob! Can't wait to give them a try. The Hobbywing ESC and the HK ESC are both pretty loud compared to other ESCs.

Trade Ben Vedder for (2) ESCs :)

Carbon fiber caps look great too.

Are we still on schedule for the 6th of Feb? I might just have to get a quad motor setup lol.


Iv been talking to Vedder about him doing another run, he has also offered to mess around with these motors a bit, breaking isn't a good as I would like ect making start up better!
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Re: Hub motor project!

Postby okp » Fri Jan 23, 2015 3:06 pm

impressive !

how much is it for a quad setup on the second batch ?!
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Re: Hub motor project!

Postby beto_pty » Sat Jan 24, 2015 8:28 am




jacobbloy wrote:Hi guys I had a bit of time so iv uploaded a video to YouTube.

[youtube]http://youtu.be/jiU8HhWZGAU[/youtube]



dont include the http://youtu.be/ part of the adress and the vid will show...
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Re: Hub motor project!

Postby melodious » Sat Jan 24, 2015 9:12 am

Looks good. @16min in, as others say, you see the motor in action unloaded. Moreover, @20min in you see the resolution to a minor problem fixed. That is the sign of a mind willing to work over obstacles, a good trait to have in order to keep things progressing. 8)

I'm curious what Vedder has planned when he gets his hands on them...
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Re: Hub motor project!

Postby Hummina Shadeeba » Sun Jan 25, 2015 3:01 am

Great video thanks for telling about what ur doing.
I think Ill try heatshrinking the wires down.
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Re: Hub motor project!

Postby higrade » Sun Jan 25, 2015 10:46 am

You consider maybe doing a kickstarter or indiegogo on this, Please consider.
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