Cully's Electric car ..T project

[samass]

moving along quick with this! what's the power of that motor?

[cully]

to be honest the motor isn't as powerful as id like but it should be powerful enough for 10mph

the gearing i have chosen reduces the gearing of the Axel 20/1 back to 10/1 so it should be twice as fast from standard form, but with half the torque. as i couldn't stop the thing and it ran me over in standard form I'm quite confident it should pull my weight

[samass]

thats not to bad, just less acc.

haha, totally have this image of you being attacked by a vicious cart monster

[Dum-Dum]

Good progress mate.

[kentiiboii]

You'd think he'd be carefully after all the accidents so far :p

[cully]

been and measured up Ive got to make a swivelling motor mount bracket so i can tension the chains
so Ive come up with this

the blue bits are existing frame hollow tube on the cart
the top orange u Ive made which mounts the motor, now Ive got to fabricate the lower fixing swivel
then just join the two

[Ben Jay]

with your batteries might it not be better getting hold of some li-ion ones?.
My uni use them for their electric race car. want me to see where they get them from?

[Niall]

Cully is it a 12 or 24v motor? What size batteries are you after?

[cully]

it will be 24v volts i have my eye on some gell leads at the moment
but what you thinking on Niall? fire alarm batts


liions would be a bit over priced for this project
but you never know in the evolution of the build

[Niall]

it will be 24v volts i have my eye on some gell leads at the moment
but what you thinking on Niall? fire alarm batts


liions would be a bit over priced for this project
but you never know in the evolution of the build

Yeah the batts we use are suitable for deep cycle but gel batteries would be better for what you want.
What sort of size are you after? At the moment all I've got is 7ahs and a few 12s which I know won't be ideal for you unless your planning on running 2 big banks of thrm

[Ben Jay]

it will be 24v volts i have my eye on some gell leads at the moment
but what you thinking on Niall? fire alarm batts


liions would be a bit over priced for this project
but you never know in the evolution of the build

When i go back to uni in sept ill see what i can get for you! our leccy car is sponsored buy a li ion battery company cant remember which one though

[cully]

think i have a pair of 21ah traction deep cycle gells
or i might have 4 not quite sure yet

[Niall]

think i have a pair of 21ah traction deep cycle gells
or i might have 4 not quite sure yet

Spot on.
What you using to charge them? I need something to charge the batts in one of my projects but I haven't got anything. Was thinking about using a car batt trickle charger but not sure if that would be ok?

[4WayDiablo]

is this going to be a mobility scooter for you to get around at fcs?

[cully]

motor mount is comeing along well
hope it looks like the drawing

[cully]

quick update
motor gearbox drive sprockets and chains are all fitted
have connected it to a battery and it runs

now to mount the motor controls batterys speed controllers and throttle linkage

oh and the wiring
EEEEK!

[cully]

today has been busy as im on call
but have managed to sort the throttle control linkage and pedal
have also started building the dash controls
maybe get some more pictures up tomorrow

just for those interested

[samass]

mucho interested, waiting on pics

[cully]

pictures of dash and throttle controller

the throttle controller works on a 0volt to 5 volt signal 0v is off 5v is full throttle this unit talks to the motor controller which converts the 0-5v to a motor speed

[samass]

Nice. Im presuming that the throttle controller is incremental? Like its not just on or off right?
The guys at my uni built an electric tt bike and the first time they tested it it was no power, or max power!
Im sure you thought of that tho haha

[mark_airey]

Looking good, your going to do yourself an injury again

Nice. Im presuming that the throttle controller is incremental? Like its not just on or off right?
The guys at my uni built an electric tt bike and the first time they tested it it was no power, or max power!
Im sure you thought of that tho haha

^^ I would think so yeah

[cully]

no injury's for me this time I'm going to get a test pilot in to try it out first

Kayley or lewis now which one?

yes the throttle has a programmable ramp so you can alter the speed ramp and the torque curve
but its preset
I'm looking into the software and cables to program it

[mark_airey]

Whichever you would miss the least if it all goes wrong obviously

[Midnightclub]

^^

[Matt]

This is looking epic, haven't read in a while. This gunna be done for FCS? Could have some fun at camp haha

[cully]

im trying my best to get this done but if it comes to FCS it will stay in the back of the Estate

have been wiring up the control dash

[Dum-Dum]

Thats alot of wires

[cully]

Thats alot of wires

yes and i just relised i dont need half of them
ah well coil them up im sure they will come in handy for any upgrades

[Midnightclub]

Think you've already said but what batts are you going to be using?

[Matt]

Wiring looks proper tidy
I really wanna do something like this now hahahha