New board build + questions

Nijsjol

10 mW
Joined
Feb 19, 2014
Messages
28
Hello,

This is my board

what i've used:
-Olson&Hekmati basic board
-Custom motor mount (made by friend)
-Turnigy SK3 (i don't remember the kv, it was fairly high, something like 320)
-3x 2s 5200mah Hard case packs (35c) in series
-HobbyKing 150a esc
-Quanum Transmitter
-1 meter of fake leather
-2x anti flex strips
-3x imax b4 compact chargers (because i had some adapters laying around)

Had some problems first, but figured them both out:

problem 1:
Quanum controller, it wouldn't bind, i figured out it were the alkaline batteries (1,5 per battery) so i used rechargable batteries (1,2v per battery) and haven't got problems yet

problem 2:
Esc with 6s batteries. only when fully charged. the low voltage cut off turns on. i figured out that when you start up the esc. full throttle for 2 seconds immediately, and then everything works normal (included voltage cut-off)

I cut out templates of the battery and esc and cut them out of the board. the battery's are hardcase packs so they don't need anything strong to protect them. the esc i just plexiglassed it. and Since weight was not an issue, i bought 2 metal anti-flex strips and attached them alongside the cut-outs and screwed them inside the board.

The fake leather i used just for decoration (it was only 9 dollars) and i think it just looks nice,
I attached adhesive velcro to it. it holds very well.

I bought an bike-car attachment thing and used it for a car for my little boy (2.5 years)

I'm trying to make it completely safe. i've got him a helmet and installed a seatbelt in the car.
With him, i'm only riding it on the sidewalk fairly slow,
(this is an old photo. the car is looking way better now with headlights and a grill and racing stripes etc, will post it tomorrow)

My questions:

1: Should i protect the motor and/or belt? or is this unnecessary
2: The esc stays cold. can i put it in a closed (waterproof) enclosure?
3: I use 3 different adapters for the batterychargers. 1 is a little slower than the other. Is it harmfull to use charge 2 batteries a little more than the other? how much roughly can they differ? i do have voltage alarms so i can monitor them per cell

Thanks alot!
 

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Nijsjol said:
1: Should i protect the motor and/or belt? or is this unnecessary
2: The esc stays cold. can i put it in a closed (waterproof) enclosure?
3: I use 3 different adapters for the batterychargers. 1 is a little slower than the other. Is it harmfull to use charge 2 batteries a little more than the other? how much roughly can they differ? i do have voltage alarms so i can monitor them per cell.

it is an awesome project, I would love to see a video with you and your passenger :eek:

1- Protect in what way? waterproof?

2- I'm sure you could waterproof it, better if one of the sides is aluminium one.

3- as you have each cell monitored, there is no harm if you stop when the first is gone, you will only get less Ah.

thanks for sharing!
 
Thanks! I will make a video!

1: to protect it from rocks/dirt/glass pièces and sh*t
2: i mean really encapsulate the esc, so it has no airflow

Thanks
 
super nice build! Look forward to seeing video.

Can you clarify your charging setup? As long as you stop when the alarm goes off on the lowest cells you should be fine, but it seems a bit odd. Missing out on range by having one pack lower than the others.

Great job and look forward to seeing more.
 
To clarify, sometimes i dont have enougj time to charge all 3 batteries to 100%, so for example, one is 80% and 2 are 100% because i use 2X 4a adapters and 1x 2a adapter (i ordered a new 4a)

And yes i reinforced the deck with anti-Flex strips, just strips of metal, they are 5mm thick
 
edit: the 120a will work just fine! im riding it now for 2 months without problems

And, the car is done for my son:
11701200_10204196933272206_8163048639106356951_n.jpg
 
little video:

https://video-ams3-1.xx.fbcdn.net/hvideo-xpt1/v/t43.1792-2/11792601_10204198968123076_1146297659_n.mp4?efg=eyJybHIiOjE1MDAsInJsYSI6MTAyNH0%3D&rl=1500&vabr=467&oh=d14b9d36930896271050b0d011794d68&oe=55C09A02
 
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