Documentation, Design and Build: Longrange - Cruiser - Dualmotor

[Kallewarrio]

hey guys,

in this thread i like to share the complete build of my project.

I start with the things i considered first and i will finish if the board dont need further improvements (if this ever happens :P)

Q: Why are you doing this ? A: I like to share my experience with other people who are interested in thooth builds and maybe i aswell as you can learn from it.

Q: What parts do you use ? A: All parts will be named in the certain updates, if they are important (i dont list every screw) (but feel free to ask if u think i have missed anything)

Q: Will there be any photos or videos ? A: yes, i will try to document every medium or big change is the project

Q: But what the hell are you trying to build? A: The plan is based on an 104cm (40,9inch) Longboard and will be a dualmotor longrange-cruiser. At least this is the plan

so, there is the base board:

this is a 9 layers of maple wood design with 70mm 80A wheelsand mach1 bearing (ABEC-11 High Speed) it has alu trucks with about 35° - 40°

. . . . . -----------------------------Other Parts which I intend to use right now:-----------------------------

Motor: 2x Turnigy Aerodrive SK3 - 6354-260KV Brushless

specs:

• Voltage: 8~10S Lipoly
• RPM/V: 260KV
• Internal resistance: 0.023 Ohm
• Max Loading: 70A
• Max Power: 2360W
• Weight: 489g

so for booth there are : Max Loading: 140A /// Max Power: 4710W

. . . . .

ESC : Alien 120A 2-12S V4 Factory ESC HV Twin NEW: FOCBOX 2x

specs:

* Output: Continuous 120A, burst 180A up to 10 seconds * Input Voltage: 5-12 cells lithium battery or 15-36 cells NiMH battery * BEC: 5V 3A BEC * Refresh rate of the throttle signal: 50Hz to 432Hz * Max Speed: 210000rpm for 2 Poles BLDC, 70000rpm for 6 poles BLDC, 35000rpm for 12 poles BLDC * Weight: 155g * + Auto detection for sensored and sensorless motors * + Anti-spark circute * + Three types of start mode: Normal / Soft / Very-Soft * + Smooth, linear, quick and precise throttle response * + Multiple protection features: Low-voltage cut-off protection / Over-heat protection / Throttle signal loss protection * + coupled system to avoid electromagnetic interference * + The firmware of the ESC can be updated through the built-in USB adapter * + Programmable by transmitter

. . . . . Batterie: (Li-Ion) INR18650 - 30Q 18650 3000mAh

for additional systems:

specs:

• Battery Type: INR
• Protected: No
• Capacity (mAh): 3000mAh
• Voltage(V): 3.7V
• Discharge: 20A
• Discharge MAX: 30A

. . . . . evolving some batterie layouts (early stage!!)

. . . . Some new Parts arrived !!! ---------------------------------------------------------------------------------------------------- . . . .

and now finally the batterys arrived ---------------------------------------------------------------------------------

[E1Allen]

Q: Do you have a picture of the deck you plan on using?

[Kallewarrio]

yes, im doing this right now

[E1Allen]

Those motors are probably to high of Kv.

Have you checked out the beginners guide or section to see a list of commonly used parts and how to?

[dragopepper]

i have also a funtomia. i would recommend you to drive the rolls well, because at the start they are slow. But after a while they a good. I like the deck, it has some flex, but its not too flexy. And if you like the print, seal it additional again, because it is sadly not a really water resistant coating. For the top remove the griptape and put a better coating on top, because my spacestripe are looking very messy, and i think only with sandpaper i get the a little bit cleaner.

[Kallewarrio]

@E1Allen

Those motors are probably to high of Kv.

I know theese are quite fast. But I have chosen them because their depth and because I’m able to create my own, customized pully system and gear ratio.

I hope this is going well, but only time can tell

[pat.speed]

What voltage battery will you use? I personally wouldn’t go higher than 8s or else you might lift off the ground

[Kallewarrio]

@pat.speed

I personally wouldn’t go higher than 8s or else you might lift off the ground

i like to use 10S8P

i think this depends on a mix of weight, settings, and gear weight will be like 12kg for the board and 80kg for me … if i travel with backpack there will be more than 100 kg

so if i calc the settings right this wouldnt be an issue … and 10S perfectly fit unter the board

What do u guys think??

[dragopepper]

Add a backspoiler On this load you could maybe also build a trailer.

[DeathCookies]

@Kallewarrio

Alien 120A 2-12S V4 Factory ESC HV Twin

Let me give you an advice: buy a focbox, escape or bbox instead! much better and maybe even cheaper

[Kallewarrio]

@DeathCookies its allready to late to change this … ups but i think this will work just fine, its designed for EV … and if it doesnt … i find a way so it does xD

[Kallewarrio]

if u followed this thread:

2 Motor 4WD?! D: DROP ur comments

combined with this build … maybe I have to D:

[Kallewarrio]

Now finally the Li-Ion cells arrived … (picture on top) there is just one question … 8S10P or 10S8P for 260KV at 1:4 gear …

what are your thoughts ?

[TheFluffiest]

What size wheels do you plan on using? The 70mm wheels are too small for esk8, especially with that gearing.

[Kallewarrio]

Hi, I am planning on using 90mm wheels : https://eskating.eu/product/new-73a-duro-electric-skateboard-wheels-90-97mm-black/

[TheFluffiest]

What is your top speed goal? Even at a 90mm wheel, a 10s setup will only get you roughly 20mph with that gearing setup.

[Kallewarrio]

maybe it could be possible that this is actually 1:3,5 gear ratio … this is my first build so maybe its ok if it goes just 40km/h more or less? could change gear-ratio maybe … hmm

[dg798]

@TheFluffiest

a 10s setup will only get you roughly 20mph with that gearing setup

True but his motors are 260kv. Can potentially go very very fast.

[TheFluffiest]

Not with a 1:4 gearing setup. Take a look at an esk8 calculator, it will show you. Although it depends on your definition of fast

[dg798]

what teeth on the motor pulley and wheel pulley