EV2Go you do realize your introducing in 4 more motors and controllers over and above the ones that drive the wheels if you want them to vector not to mention the programing to get them to work out weather to turn the same way or the opposite way
Richo wrote: Adverse Effects wrote:the hover board wheels are a no go as there is nowhere near enough power in them
Really?!?
They are rated for 350W - 500W peak each.
4 drive wheels 1400W/2000W.
They aren't high RPM either so a lot of that is torque.
Don't confuse the motor performance with the designed "usable" operation of the hoverboard.
yes china 350 watts so about 150 to maby 200 and there also a 60 volt system and the BLDC so you lose torque over a DC brushed motor running the same watts
Richo wrote:Adverse Effects wrote:
2 drive wheels that are like 200mm to 300mm wide just to get enough traction(i know this because the 50mm wide ones i have slip all the time even on a minimal grade)
You mean the mower not hoverboard right?
Go stand on your mower and tell me if it still slips...
i can tell you with out a dout in the world that it will keep slipping because i thought the same thing more mass over the wheel better grip
i have had anything from 1 12V car battery to 2 20Kg 12V truck battery's directly between the 2 rear drive wheels the only difference it made was on slightly soft ground i had to go over and push it out of the ruts the wheels dug in to the ground with the 2 truck battery's only
in some cases that may be true like on cement and bitumen but on wet grass and dirt it is not the case it just cuts a grove this is why you need wider wheels to spread the the load/foot print (why do you think 4x4s put on wider wheels and tires? more grip)
I have seen bigger off-road wheels just bolted through the back plate of the hoverboard wheels for faster off road fun!
You can't tell me a $25 bunnykings wheelbarrow wheel wont work.
well i looked for the wheels you mentioned and all i found was china plates(go figger)
so they "just bolted through the back plate of the hoverboard wheels"
there a BLDC with windings just "through the back plate" so they must have done something funky with them

not to mention you would need BLDC controllers for each wheel
Richo wrote:Adverse Effects wrote:
as for running the blades (3 blade deck) you want them spinning at around 3K and up to 5K RPM and am just guessing about 250 to 300 watts to run each?
...individually running each blade with a blade mounted on the motor shaft
3 blades now - designing on the fly

no if you look at his pic you will see clearly 3 blades not to mention we have been discussing this fore about a week b4 this thread in emails
3k-5k you can run each direct drive on an RC motor.
You'll still need the low KV motor
are you in the RC hobby? i am and have spent more money on it than i care to admit even to my self to run the blades on a "BLDC outrunner motor" as there called in the hobby you would need as you say a low KV motor so lets take a look at the cheapest suppler there is hobbyking
your looking from $70 to $400 each motor (price denotes quality in these bit motors)
controllers $40 to $170 each (again price denotes quality)
then you have the problem of the bearings on the hobby grade stuff are of the lowest quality so collapse kind of young
not to mention the 6 to 8mm shaft the bigger BLDC outrunners have in them
i dont know how much of a load they could take wouldnt take much of a rock hitting the blade to bend the shaft and trash the motor
Richo wrote:Adverse Effects wrote:
24VDC systems are easiest to get drivers for but 48 would be better as same watts less amp draw
Both hoverboard wheels and RC controllers will work on 36V.
36V is available for both.
ahh most hovverboards are 60V and RC controllers are just about any range you want depending on how much you want to spend
there again i have spent more money than i like to admit on this hardware you havent seen all my toys 1/2 filling the lounge room of my house EV2Go has
Basically they only reason you wouldn't build it this was is if you were making a sellable product.
or if you where building a unit once and didnt want to have to "fix" it every time you wanted to use it and EV2Go is like me in that aspect have a look at the CNC Mill he is building i think if a truck hit it the truck would lose and he (baring him selling it) will have that till the day he dies i wouldnt dout