electric longboard build.

longrider

10 µW
Joined
Sep 26, 2015
Messages
5
Hi there everyone, well i'm new to riding any kind of skateboard, i have a 1km commute from carpark to uni and decided to buy a longboard. And i've been loving it!
Have been riding for a few months now so quite confident in riding, but, the initial plan was to make it electric, so now the fun stuff begins.

I have read quite a lot on here, and so need to thank the people who put in time, effort and money into researching what works etc. I think i have come up with a good list of parts, and if you do have any input onto perhaps how i can do things better, please fell free to because at this stage, i haven't made the order yet (waiting for parts to be in stock here in Aus).

- The board; it's just a cheapy. A drop down and drop through deck. Sits really low to ground, which is good for me, becuase i'm rather tall. However does mean motor will be mounted out back.

- The motor; Turnigy SK3 190kv.

- ESC; Hobbyking YEP 150A (2~6S) SBEC Brushless Speed Controller. Not entirely sure if this is suitable, perhaps some input?

- Battery; turnigy 6s, 5000mAh, 30c.

- Gearing; small = 15t, large = 40t.

- Wheels; at this stage 70mm. However, they do not have the nice holes in the hub like i see abec 11 flywheels do. So would also like to upgrade these to a larger wheel, will need to source something from somewhere.

- Mount; i do a fair bit of fabrication and tig welding, so will make my own.

- Controller; most likely a cheapy off ebay, and perhaps mod it in the future to be compact.

Well if you think i have forgotten anything, or need to change something, please let me know. I'm designing it as a cruising board, not looking for high speed, and doesn't need a huge range. However, i did want it to have plenty of torque for hills etc. And looking at some members stats from their battery size, 5000mAh should give me a decent range for riding by the beach etc. Stay tuned for more!
 
190kv on 6s and your gearing will be pretty slow(I used a 6s +190kv motor geared 16:36 and was going around 15mph, and your gearing is even lower)-

That may be totally fine for you, but I know a lot of people want to go a little faster. So what is your speed goal?

If you do end up wanting more speed at the sacrifice of torque, the turnigy 236kv and 245kv are very popular aswell.

Good luck and have fun with the build!

Edit: the esc you listed is a helicopter esc, so brake will be either non existent, or really poor. Also, it just wasn't designed for the kind of load a skateboard will put on it. I'd go with a car esc- they will be a little more, but will benefit you in the long run. You've definitely done very well on your research though!

Major props for that!
 
haha yer i probably seem slow to others, i'm no professional rider :p I have calculated that with my setup, 85% throttle should give me approximately 17km/h. Which i am fine with whilst still learning. I may also add some other gear ratios only my shopping list as spares/different speed setups.

Ok great thanks for the ESC info. That was probably the one thing i was unsure on. I have just found the hobbywing model which i see others using. It seems hard to find an esc on hobbyking website that has the amp and sell rating. Doesn't help that i haven't had a lot to do with rc parts before either :p
 
even as a beginner (which you are not anymore), 17km/h will feel extremely slow. I would at least opt for a 30ish km/h max setup.

maybe abecs 83mm and a 32T drive wheel for a max of 30km/h with 6S (32.6km/h with 90mm abecs)! smaller drive gear also means the belt is further from the ground and will not get damaged so easily!

there is a reason why basically all commercial products run a 30-35km/h top speed: its something youll get used to really fast, no matter how bad your truck/bushings setup is!
 
Trying to get me hurt whitepony! haha although would provide for some good entertainment.

I really like the thought of having small gears to keep the belt off the ground, that's good thinking. Looks like i'm getting a range of gears then, some for low speed foe when i start off, then some for some faster stuff, for you know, when i'm late for class and need to get there in a hurry :D
 
I've got some YEP-150 esc in my "products to test" box.

Never got around to testing, they might work. They definitely have a brake. Just not sure how well it will work. Maybe it will maybe it won't.

I've only ever read one other thread on here of someone who was going to test YEP-150. But they never finished their build thread.

I think if you can afford to (maybe) waste some money, Give it a try. They may actually be perfect for eboards... they are small and seem to have lots of configuration.

Make sure you buy the program card.

I don't see me finding the time to test the two I have. Also I don't use 6S anymore... would have to build a new deck to test it...
 
I have a friend that build a board and used the YEP esc. Brakes are absolutely non existent once a persons weight is added to the board. He quickly took my advice and upgraded to a car esc. Also I am currently running a Turnigy 192kv 6374 that is geared 16/40 which has a top speed of 20mph on flat ground. I think that 20mph is plenty for most people but that is my opinion. I also rarely get the opportunity to run 20mph while commuting due to pedestrian foot traffic always in the darn way!!!
 
So today i was able to do some mock up with card. As you can see below, i decided the trucks need to be bottom mount as apposed to top mount. This mount has a centre to centre distance of 71mm. I'm thinking i need to go a little longer. What are some boards centre to centre distance?
Will definitely need to go bigger wheels, looking at the abec11 90mm wheels. This may even give me enough clearance underneath for batteries and ESC.

 
Good looking deck and should be a nice setup!

I'd also vote for a car ESC instead of the YEP. XERUN/FVT/EZRun are all well respected 6s hobby ESC's. And usually $80-100. (Don't forget the programming card which you *must* have for adjusting brakes! +$20)

I feel like a broken wheel repeating myself a bit, but you should seriously consider the VESC instead. A small premium ($20-40?) which totally unlocks your capabilities for down the road. Super configurable (almost too much so in the beginning) and supports up to 12s w/ <200kv motor. So you could start out w/ your setup and get comfortable, but increase voltage later when you want to go a bit/lot faster.

Batteries - there are some really nice slim 3s batteries you could do 2 in series for 6s and stay around 25-26mm thick. Zippy 5000 20C iirc.

Controller - instead of el-cheapo from ebay i'd get el-cheapo from HK or Amazon - the HK or Flysky GT2B. You can see the how-to for putting it in a badwolf v2 smaller 3d enclosure in my sig. Not too hard (since i can do it) and makes it really nice size (able to slip into pocket). You can also rock it in regular form to start and do the smaller enclosure down the road. Great battery life and rock solid connection.

Wheels - i'd get the Flywheel clones on ebay for a lot less or the actual Flywheels - both work great and i have real flywheels in 3 sizes 76 - 83 - 97. Have the 83 clones on GF's board. I hope to try some of the electric flywheels (107mm) one day on a drop deck to see if they are significantly better than the 97's which i really like.

I'll see if i can measure my center point distance on the DIYes and Enertion motor mounts for you to compare.

GL!
 
Thanks for the input Sl33py. I like the low profile of the VESC. I'll have to do some research on it to see if i'd be qualified to work the thing :D but postage isn't much and doesn't look like i'd need a program card?

Batteries, yes 2 x 3s was the other option, but only if i feel i can fit it all under the board. With a EZrun, that isn't really possible, but with the VESC it may just be!

Now the controller, i didn't want one from HK because they didn't seem to have the pistol style in aussie stock. i did notice on ebay they are the same GT2b.....or what ever it is. Thank you for the badwolf idea though, that looks perfect for what i want!

ps: thanks for the tip about the clones. I can't find any in aus, but, even getting them from the US is cheaper!
 
longrider said:
Thanks for the input Sl33py. I like the low profile of the VESC. I'll have to do some research on it to see if i'd be qualified to work the thing :D but postage isn't much and doesn't look like i'd need a program card?

Batteries, yes 2 x 3s was the other option, but only if i feel i can fit it all under the board. With a EZrun, that isn't really possible, but with the VESC it may just be!

Now the controller, i didn't want one from HK because they didn't seem to have the pistol style in aussie stock. i did notice on ebay they are the same GT2b.....or what ever it is. Thank you for the badwolf idea though, that looks perfect for what i want!

ps: thanks for the tip about the clones. I can't find any in aus, but, even getting them from the US is cheaper!

With a drop through like that are you sure you will fit a 6s battery + case underneath without bottoming out on small bumps
 
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