6S Hub Motor Electric Longboard w/ Wireless Meter!

Lightweight / Folding / Portable EVs - seats optional
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JdogAwesome   10 mW

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6S Hub Motor Electric Longboard w/ Wireless Meter!

Post by JdogAwesome » Nov 22 2015 4:14pm

Hello! I Know there are a lot of Eboard threads out there but I thought I may as well post mine to get some help and any insight from others! Ive just started the part gathering process and I have almost everything I need. Heres a part list of everything ive bought to start it off. Also Jerry from Carvon Skates has been SO helpful i mean like we have almost 30 emails sent to each other, best customer service EVER. Also thanks to the community of people on here that have helped a lot with various things! My budget for this build was about $550 and ive gone a bit over but thats not a big deal. Ill be editing this post or posting other pictures and updates when I get the rest of the parts and or start putting it all together.

I have an Imgur album with the pics of the BadWolf Case Mod for the GT2B controller, http://imgur.com/a/avqdf

$25.90 x 2: Turnigy 5000mAh 3S 30C Lipo Pack: http://www.hobbyking.com/hobbyking/stor ... ouse_.html
$54.14: HobbyKing® ™ X-Car Beast Series ESC 1:8 Scale 120A: http://www.hobbyking.com/hobbyking/stor ... ouse_.html
$26.07: HobbyKing® ™HK-GT2B: http://www.hobbyking.com/hobbyking/stor ... ouse_.html
$36.59: 36" Longboard Deck: http://www.ebay.com/itm/190771153331?_t ... EBIDX%3AIT
$5.95: JST-XH 6S TO 2) 3S Adapter thing: http://www.ebay.com/itm/351260057560?_t ... EBIDX%3AIT
$17.27: iMAX B6 Balance Charger: http://www.ebay.com/itm/311360452643?_t ... EBIDX%3AIT
$4.78: DC 0-30V Blue LED 3-Digital Display Voltmeter: http://www.ebay.com/itm/261684392305?_t ... EBIDX%3AIT
$24.88: 200A Digital Wireless Voltage Current Meter: http://www.ebay.com/itm/351563880327?_t ... EBIDX%3AIT
$7.20: 1000mAh 2S Lipo for Voltage Meter: http://www.ebay.com/itm/301703257112?_t ... EBIDX%3AIT
$5.66: Super Bright White 7" LED's: http://www.ebay.com/itm/291161780706?_t ... EBIDX%3AIT
Some 4mm bullet banana connector and some 5.5mm High Current Bullet Connectors.
Last but most important, $300 for the CARVON V2 SINGLE HUB MOTOR: http://www.carvonskates.com/store/p4/Ca ... _Now..html


Testing the ESC with my Traxxas Rustler VXL motor.
https://www.youtube.com/watch?v=VIkYdHGtDHY


Longboard Electronics Test #2!
https://www.youtube.com/watch?v=-wNenrgb6GE




Here is the wiring diagram I made for how I plan to hook everything up,
Wiring Diagram.jpg
Wiring Diagram
Heres an ODS file with all my current parts. Open it with Open Office if you have it.
Eboard Part List.ods
The Current Part List
(18.92 KiB) Downloaded 129 times
Here is Protype V1 Kinda? I have the ESC, Controller, Voltage Display and fuse switch working!
Prototype Pic 1.jpg
More Prototyping and Testing
Wood mold to make the fiberglass enclosure. I know the pieces aren't perfect but I made it a little to big to have some extra space to sand down/
Wood Mold V1.jpg
Wood Mold
Sanded and covered in painters tape wood mold
Wood Mold V2.jpg
Wood Mold V2 Blue Tape & Sanded.
Board prepped & ready for fiberglass covering! Im going to get a PROPER respirator from my friend tomorrow because I cant use the crappy paper masks.
Skateboard Prepped.jpg
Skateboard prepped for Fiberglass layer.
Main wiring completed! Finished soldering and wiring all the components together! Love the wireless meter so far! I'm going to cover up all the open connections to prevent any shorts FYI
Wiring Overview Pic.jpg
Wiring overview.
Max draw at full throttle
Wireless Meter Pic.jpg
Wireless Meter max draw at full throttle.
Added 1000mAh 2S Lipo
Wireless Meter w Battery V1.jpg
Wireless Meter w/ battery!
Wireless Meter w Battery V1.jpg (194.77 KiB) Viewed 1034 times
USB Charging & night time light circuit
Light & USB Circuit.jpg
USB Charging circuit & night time light circuit.

Fiberglass laid over mold & painted with resin, FINALLY!
Fiberglass Painted V1.jpg
Fiberglass enclosure V1




---------------------------------------------------------------------
PICTURES FROM THIS POINT ON: http://imgur.com/a/5NzyB
---------------------------------------------------------------------






.

CATCH UP AND 1 MONTH REVIEW!

So! Its been a little over a month of using the board and the first thing I can say is, its amazing, and its horrible. Whats amazing is the experience and the numerous uses I have for the board. Whats horrific or just kinda bad is my overall design of the board. Its functional but there are a ton of things I would change if I where to do it again. First off, IT NEEDS TO BE WATERPROOF! That was honestly my biggest mistake by far, i corroded a 6S JST extender for charging the board because a little water got in it and ruined it. Second the way I charge this thing is hideous! I have to plug in the balance JST cord then take two alligator clips and attach them to the positive and negative terminal of the batteries wired in series, and it looks like a rats nest. To fix that I ordered a GX16-9 connector and im going to have that on the side of the board so I can just plug it in and click the charge button on my balancer, much easier. Third I HATE THE "Fuse Switch" first of all its not a fuse, its just a switch. It is a piece of crap the pins holding the top cover on have broken off and they have all fallen out. Also the lever to turn it on fell off so I have to use needle nose pliers to turn it on. Im going to just get a normal toggle switch and replace it with that. Fourth the wireless voltage wattage and amperage meter was a big mistake to add. The ground bridge added a lot of complication to the circuit and I practically never use it. It also takes up a good chunk of space in the enclosure where I plan on adding an arduino, possibly, to add RGB LEDs on the bottom. Fifth the Fiberglass enclosure turned out kinda crappy and I would have re done it if I had more time before I left for Mehico (Mexico). I would recommend getting one of the ABS enclosures that I forgot who is selling on endless sphere. The Fiberglass isnt horrendous but it could be a lot better. Number god knows what, I would cut individual holes for each wire to make it more waterproof and look cleaner. If anybody has any questions about anything please shoot me a PM or even better post a reply so others can see your question and benefit from it. Ill have a link below this with another Imgur Album with a bunch of other pics and stuff about the board and specifics about it.

http://imgur.com/a/IxvPE



.
Last edited by JdogAwesome on Feb 18 2016 5:38pm, edited 23 times in total.

serg10   10 µW

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Re: 6S Hub Motor Electric Skateboard!

Post by serg10 » Nov 22 2015 4:43pm

Your build looks good to me so far

The multistar battery are on sale so you could save a few bucks b getting these instead
http://www.hobbyking.com/hobbyking/stor ... _Pack.html

Also, I recommend one of these to monitor the individual cell voltages on the battery. It has a low voltage alarm too.
http://www.ebay.com/itm/1-8S-Lipo-Li-io ... SwIwhWRTKf

Edit:

That charger you have does not come with a wall adapter so you will need one of those to

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JdogAwesome   10 mW

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Re: 6S Hub Motor Electric Skateboard!

Post by JdogAwesome » Nov 22 2015 7:43pm

serg10 wrote:Your build looks good to me so far

The multistar battery are on sale so you could save a few bucks b getting these instead
http://www.hobbyking.com/hobbyking/stor ... _Pack.html

Also, I recommend one of these to monitor the individual cell voltages on the battery. It has a low voltage alarm too.
http://www.ebay.com/itm/1-8S-Lipo-Li-io ... SwIwhWRTKf

Edit:

That charger you have does not come with a wall adapter so you will need one of those to
Thanks for the info! That deal on those battery's, WOW! Though there only 10C so idk if that would be enough amps to keep this thing up and running.
I have one of those battery monitors, and im going to hook that up as well here is the links to the 2 i bought:
http://www.hobbyking.com/hobbyking/stor ... ouse_.html
http://www.hobbyking.com/hobbyking/stor ... ouse_.html

And I already have a 15V 1.5A wall wart to power it!

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LEVer   10 kW

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Re: 6S Hub Motor Electric Skateboard!

Post by LEVer » Nov 23 2015 3:12am

Parts list looks good. Unless your ESC has current limiting feature, be sure to have a battery pack that can push out 80 amps to be safe, especially if you're going to use only 6s.

In case you're not aware, you can get ABS enclosure from psychotiller: https://endless-sphere.com/forums/viewt ... s#p1114912

Image

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JdogAwesome   10 mW

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Re: 6S Hub Motor Electric Skateboard!

Post by JdogAwesome » Nov 23 2015 8:06am

Yeah my battery's can push at least 80A I know what much. I saw that he was selling those abs ones though I wanted to trie and make my own! I'm having some trouble on how to make a mold for the Fiberglass. I've seen people use styrofoam but idk have any suggestions?

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Re: 6S Hub Motor Electric Skateboard!

Post by LEVer » Nov 23 2015 8:21pm

Wood is good. Easy to cut and sand. Btw, here's the pic of the Single Hub with lime wheels you asked for:
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JdogAwesome   10 mW

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Re: 6S Hub Motor Electric Skateboard!

Post by JdogAwesome » Nov 26 2015 2:39pm

If you noticed in this video, https://www.youtube.com/watch?v=VIkYdHGtDHY video when I turned off the remote it acted as if I was pulling the trigger a little. I dont know why that is happening so if you have any ideas on how to fix that that would be great!

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Re: 6S Hub Motor Electric Skateboard!

Post by cdn » Nov 26 2015 3:46pm

JdogAwesome wrote:If you noticed in this video, https://www.youtube.com/watch?v=VIkYdHGtDHY video when I turned off the remote it acted as if I was pulling the trigger a little. I dont know why that is happening so if you have any ideas on how to fix that that would be great!
Try adjusting the "TH TRIM" on your transmitter. You'll have to open your Badwolf enclosure.

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Re: 6S Hub Motor Electric Skateboard!

Post by LEVer » Nov 26 2015 7:49pm

Aside from adjusting the TH Trim, try re-calibrating the endpoints of the throttle. Also, try it without the reverse option, only forward and brake.

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Re: 6S Hub Motor Electric Skateboard!

Post by JdogAwesome » Nov 27 2015 8:38pm

Im thinking about buying these LED strips to put on the sides of the board, there only like $6 and seem super bright. They would be great for riding at night time. I also may just put one on the front instead and have some RGB led strips on the bottom controlled by an Arduino Uno. Heres a link to the lights to see what you think. http://www.ebay.com/itm/2x-Super-Bright ... IG&vxp=mtr

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Re: 6S Hub Motor Electric Skateboard!

Post by LEVer » Nov 27 2015 10:18pm

Wow, that looks bright. Check out Dimension Engineering, they have RC lights, controller, kits, etc.

https://www.dimensionengineering.com/pr ... tarter-kit

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JdogAwesome   10 mW

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Re: 6S Hub Motor Electric Skateboard!

Post by JdogAwesome » Nov 28 2015 1:08pm

I may buy 2 more battery's for the board so I can swap them out and be able to ride a lot farther on a single charge. These battery's are CRAZY cheap on HK $24.86 for 2 of them! Only problem is there 10C though that still means max 52 Amp output each, multiply that by 2 and thats 104 Amps which I think is fine for my board. Though i thought I would get some opinions because its such a good deal to not jump on!

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Re: 6S Hub Motor Electric Skateboard!

Post by torqueboards » Nov 28 2015 2:14pm

You'll only get the 104 amp rating if you wire in parallel. If you wire in series, you will still be at the 52 amp output.

12s (44.4v) * 52amps = 2308 watts.

Should be more then enough. I haven't noticed much difference and don't tend to pull that many amps. That rating is still continuous and not peak.

If your talking about the multistar they mention they are 20C peak discharge which would give you the 104 amps peak for 10 seconds

12S (44.4v) * 104amps = 4616 watts.

Give or take as amp output is always not as stated. You'd be fine though.
DIYElectricSkateboard.com Electric Skateboard Kits

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LEVer   10 kW

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Re: 6S Hub Motor Electric Skateboard!

Post by LEVer » Nov 28 2015 2:17pm

The battery is 3s. If you use two of them and wire them in series, they will be 6s but their capacity will be the same.

If you parallel them, then their capacity will double but they would remain only 3s. So to make it 6s and double the capacity, you would need 4 of them.

And yes, you would need more than 52 amps for your Single if going only on 6s. 80 amps would be ideal.

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JdogAwesome   10 mW

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Re: 6S Hub Motor Electric Skateboard!

Post by JdogAwesome » Nov 28 2015 2:30pm

Ahh right I didn't think about that thanks. I would be wiring them in series so I would still only be at 52A output so those battery's wouldn't do. Thanks for your help any ways!

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JdogAwesome   10 mW

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Re: 6S Hub Motor Electric Longboard w/ Wireless Meter!

Post by JdogAwesome » Nov 30 2015 11:43pm

Check out the new video the electronics being tested! https://www.youtube.com/watch?v=-wNenrgb6GE

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Re: 6S Hub Motor Electric Longboard w/ Wireless Meter!

Post by JdogAwesome » Dec 01 2015 3:40pm

I bought this power brick, http://www.ebay.com/itm/ac-adapter-powe ... 1451934768 for my Imax B6 charger and im having some problems. I cant charge my 3S lipo above 4 amps without the voltage dropping below 11 volts. though the PSU is rated at 12V at 5A? With my 6S Lipo I cant charge above 2.6A without voltage dropping to low. Anybody have any ideas? I would love to be able to charge at 5-6A so I can just charge then more quickly. Just found this, http://www.ebay.com/itm/9-18V-5A-AC-DC- ... SwPhdVSrdR 19V 6.3A 120W adapter I think this will do the trick what do you guys think? Also found this guy,http://www.ebay.com/itm/Genuine-IBM-Thi ... Sw4HVWFSbM 16V 120W 7.5A idk which one to get help!
Last edited by JdogAwesome on Dec 01 2015 7:34pm, edited 3 times in total.

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Re: 6S Hub Motor Electric Longboard w/ Wireless Meter!

Post by evilboarder » Dec 01 2015 4:00pm

how does this esc work for you? i ordered the same and wondered, if its any good. did oyu programm it with the programming card, or by using the usb cable?

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Re: 6S Hub Motor Electric Longboard w/ Wireless Meter!

Post by JdogAwesome » Dec 01 2015 4:13pm

evilboarder wrote:how does this esc work for you? i ordered the same and wondered, if its any good. did oyu programm it with the programming card, or by using the usb cable?
So far it's been great! Only problem I have is that I can't for the life of me figure out how to set the end points for the throttle, other then that it's great! Though I would def recomend buying the programming USB cable if you can. Also if your ordering lipos from Hobby King don't get them from a different country or China. I ordered a Lipo from China and it took over a month to get here! Try to order from a USA warehouses (if your in the US) or the warehouse closest to you. Also when you order from HK order a bulk order of EVERYTHING you could possibly need it will save you a fortune and a TON of time. I got my HK order from the USA East warehouse in 2 days great shipping time!

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Re: 6S Hub Motor Electric Longboard w/ Wireless Meter!

Post by LEVer » Dec 01 2015 11:10pm

Your Charger is the iMax B6, it's max charge power is 50 watts. Watts = Voltage x Amps. So the more voltage you are charging the lesser the amps, and vice-versa. You can only charge up to 5 amps for 10V or lower.

The adapter is just for the iMax charger. You need to find a charger with charge power of 100 watts or more to increase your amps for the volts youre using. Check these chargers:

http://www.rcjuice.com/chargers/?sort=pricedesc

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Re: 6S Hub Motor Electric Longboard w/ Wireless Meter!

Post by JdogAwesome » Dec 01 2015 11:39pm

LEVer wrote:Your Charger is the iMax B6, it's max charge power is 50 watts. Watts = Voltage x Amps. So the more voltage you are charging the lesser the amps, and vice-versa. You can only charge up to 5 amps for 10V or lower.

The adapter is just for the iMax charger. You need to find a charger with charge power of 100 watts or more to increase your amps for the volts youre using. Check these chargers:

http://www.rcjuice.com/chargers/?sort=pricedesc
No I realize that the higher the voltage the lesser the amps I just wanted an opinion on the adapters I mentioned before thanks though! I didn't know that there was a iMax B6 charger that you could just plug into a AC wall outlet :/

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Re: 6S Hub Motor Electric Longboard w/ Wireless Meter!

Post by JdogAwesome » Dec 06 2015 2:08am

Just finished painting the fiberglass with resin! Should have cut the corners so it laid around the corners better. Live & learn ill do that next time. Other then that it went pretty well, i think ill check back in the morning to see if it cured properly.

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Re: 6S Hub Motor Electric Longboard w/ Wireless Meter!

Post by longboarder » Dec 14 2015 10:40am

Cool build!

I have a question regarding your controller. Is that just the HobbyKing® ™HK-GT2B taken apart? That looks pretty cool.

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Re: 6S Hub Motor Electric Longboard w/ Wireless Meter!

Post by JdogAwesome » Dec 14 2015 10:44am

longboarder wrote:Cool build!

I have a question regarding your controller. Is that just the HobbyKing® ™HK-GT2B taken apart? That looks pretty cool.
Yup it is! In the post I have a link to the thingiverse build if you want to make one.

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Re: 6S Hub Motor Electric Longboard w/ Wireless Meter!

Post by LEVer » Dec 16 2015 11:56am

Looks nice Jdog. I've always liked bottle-nose decks.
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