Hey there! I usually go by “Rex” Long time stalker of the E-board community since way back in 2015 lol.
I was 17 when I made my first longboard build, and made an instructables to go with it! (https://www.instructables.com/id/DIY-Electric-Longboard/)
Needless to say, times have changed and my budget has really increased.
I started by finishing a second board (Dual 230kv, 12S belt drive w/ dual VESCs, TB Samsung battery, and an LED underglow that is controllable via my phone, all on 97mm wheels). It has been a blast, and a HUGE HUGEEEEE upgrade from my original board in every single aspect (I have yet to be able to charge my phone off it :/)
With two longboard builds done, I am interested in dipping my feet into the world of Mountainboards. I can zip through grass well enough on my longboards, but curb jumps and other simply fun looking tricks one can only do when strapped to a board look like fun, and I want IN!!
My objective is a more versatile curb/terrain friendly board, that that can be used both on and off road. Something on the ‘lighter weight’ as far as mountain boards go. Hard dirt, dead grassy fields littered with cow poo and gopher holes, skate parks, irrigated almond fields, and pavement will be the types of terrain I will be tackling. Not much mud expected, and no snow here! 25mph on flat ground is a must. Should be somewhat maneuverable/manageable.
Having followed the longboard side of things for a while, I find myself severely lacking in the knowledge of mountain boards. If you knowledgeable builders could point me in the right direction I would be much obliged!
As of now, here is what I know so far:
Trampa 16ply Holypro (I am 5’10 and 190lbs) 8 inch Superstars. Idea’s v4.5 motor mounts,15/60 gearing. x2 6380 170kv motors. x2 TB VESC
I have multiple 16000mah 4s 12c batteries laying around that I feel ought to be used.
For power, I would like to build my own under-deck battery using these cells. I would build it in a way so that each cell (Possibly two stacked on top of eachother) would run perpendicular to the deck to allow for flex. Each group of two cells would be protected by a 1/16" thick aluminum sheet should anything strike or grate against them from below
Assuming I have about 24 inches of usable under-board length, I could have 7 perpendicular 3 inch wide ‘spaces’ to use. 6 of those would be for the groups of cells, and the last one would house a BMS. @ 2 cells deep, it would add up to be a 12s 16000mAh battery, only an inch thick, and flexible.
The VESC’s would be housed in a box above/behind the dual motors w/ an LCD screen and on/off switch.
Also needed is SOME SORT of LED underlighting. That is a must. I’ve done it twice before, and will do it a third time!! I can wire those in with a BEC easy. Also a headlight for sure.
Anyway, I have very little detailed knowledge of electrical wiring in terms of building a battery with a BMS, as well as on/off switches and LCD screens lol (More forum hopping will likely help that)
Will it be a problem using 6380 170kv motors with the VESC?
Should I go continue with two 6380 170kv motors with the VESC? I don’t seem to see a lot of mountainboard builds with the TB VESC used… Is this because of the amps wanted/needed?