[frodus]

Motenergy, it's no longer Mars.

[datahar]

Well hopefully I will be able to get some progress soon / actually get started

I decided for the price I was going to take a gamble with the RC outrunner
I have ordered the outrunner, ESC, 6s worth of li-ion cells and a 6s charger

6S is probably optimistic and will probably go upto 12s with dual chager (the charger will be built into the battery pack which will be removable)

Then depending on success of the experiment I will buy the rest of the batteries

unfortunately to save on cost all the components will be coming from China, so it will likely be a tantalising drip feed over the month

All this will be going into a moped of all things, it was a £50 buy, 03 plate 125 miles since new, been sat in a backgarden since, so is going to be interesting to see it's condition, I am hoping I can restore the 'redundant' parts enough to make a bit of profit on ebay

I will be utilising the CVT transmission, this hopefully solves the low speed issue with outrunners

[datahar]

Finally got my hands on the "bike"
Got it home and stripped down, the frame needs a clean down and paint, but luckily isn't rotten, my idea of salvaging the motor for resale is out the window and the engine block is also part of the frame, so I will be cutting out the redundant bits.

before:

After:

[marcexec]

Are you going to keep the original belt drive?
Then your outrunner might work well, has been done on ES.
http://endless-sphere.com/forums/vie...p?f=10&t=38598

I'll be using one on a geared bike

forget the 12kW Colossus for now, that's one for future projects (I have been through the whole 100+ pages...)

[datahar]

Hi,

Thanks for the link! Missed that one when I was doing my research

Yes I will be keeping the CVT system, I currently have the ped in a position ready to accept the motor, just need to get the arduino and throttle controlling the motor properly.

Then I get to put it all back together and test

[marcexec]

You are building your own brushless controller with an Arduino?
That's cool.
But you know there are plenty controllers out there for a couple of bucks, right?
i.e. RC controllers (Hobbyking, Castle Creations etc.), specialized EV controllers (Kelly, Golden Motor), and my choice: already hacked e-bike controllers (XieChang, AKA "Infineon", modded by Methods, Lyen and others)
Did you add hall sensors?
You might want to check my build over at ES:
http://endless-sphere.com/forums/vie...p?f=12&t=35865

[datahar]

Originally Posted by marcexec

You are building your own brushless controller with an Arduino?
That's cool.
But you know there are plenty controllers out there for a couple of bucks, right?
i.e. RC controllers (Hobbyking, Castle Creations etc.), specialized EV controllers (Kelly, Golden Motor), and my choice: already hacked e-bike controllers (XieChang, AKA "Infineon", modded by Methods, Lyen and others)
Did you add hall sensors?
You might want to check my build over at ES:
http://endless-sphere.com/forums/vie...p?f=12&t=35865

No, I am using as much RC kit as possible, the arduino I will be using to translate the throttle to the ESC

Just having problems using all the RC components together at the moment, hoping its just a case of wrong settings on the ESC