Dual Drive 260KV - 110mm Wheels - 6S - Gearing?

ESK8 Electronics
5

Are two 260KV motors not ideal then?

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6

No you need like 190kv or lower

and that motor i linked is bigger and cheaper

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7

But what about using a gear reduction? Surely this would create the torque I need?

8

What top speed are you after?

9

Hiya, Probably around 30? Seems reasonable for a good amount of torque.

Cheers.

10

You trade torque for top speed and vice versa, you certainly would not have the ‘gripping’ torque you think you will if your top speed is 30mph with 260kv motors. Look at the motor above and take his advice, hes trying to ensure you wont spend twice. weve all done it :man_shrugging:

11

Thanks. I’d be spending twice if I bought another motor after I just bought 2 :wink:

12

Can I do Dual Drive 6364? Or not needed?

13

Depends what trucks you use, you are kind of limited to one truck which is TB 218mm

14

I bought the 6364 :slight_smile: Sorry to be a pain, What sort of current would I be looking at on a VESC? Like 75 continuous or is that too low?

Cheers

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15

They are good motors but you need to get the right trucks for them really. Or you can use diagonal drive.

You should read more

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16

The big problem is that you are running 6s, or about 20 V. The motor can’t handle much more than 60A, 20V * 60A = 1200 watts. That’s a little more than the Chinese boards, but not enough to make it worth the time, effort, and expense.

In diy, the most minimal build plan that makes sense is imo 12s, LiPo, single 6355 200 kv, chain drive, geared to 25 mph. Otherwise it usually makes more sense to buy a Chinese hub motor board or a used boosted.

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17

Don’t buy motors with a kv over 190 or 200.

Use a calculator. 10 N·m is adequate/not much torque and 25 N·m or more is a lot of torque. (“Total Max Torque” in the Overview)

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18

I’d be using dual motors so hopefully less current would be drawn. I’d upgerade to 12s VESC’s when I can afford it too. So 12s (44.4v) * 70A MAX = 3108 Watts which is kinda reasonable. Obviously, I wouldn’t be running 70A continuous, more like 30? Only 70 maybe starting off.

19

Thanks, ill have a look.

20

You’re gonna want caliber trucks at the very least. If you go with the normal calibers 6364 wont actually fix next to each other. But you could have one facing forward and one backwards. Or Buy @torqueboards 218 truck (basically a longer caliber truck) Then you could mount the motors next to each other.

Basically blob CB10632E-78F4-438F-9114-1FB173AD7E85 image

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21

I made the same mistake, buying the hk xcar esc. Don’t get me wrong it’s a good esc, but not so much for esk8. Plus it’s actually cheaper to buy 2 vescs.

2x xcar + programming card ~$185 2x flipsky vesc + loop key ~$165

Edit: prices are in AUD

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22

Yo, thanks a lot Kelly!

Now I’ve ordered the 6364 and already have 2 x 6354, I don’t know which to use… I guess I could get the 218 Truck and try dual 6354 or single 6364?

Cheers for your help!

(Sorry about the slow reply, I got blocked from replying…)

23

Thanks for the Help! I bought the ESC’s on a black Friday deal as well as the motors and a battery and a program card for £180 which was a bargain :wink: I am doing a Jet Surfboard project aswell so thats the main reason for buying all that, just wanted to see if I could cross use them :slight_smile:

Cheers for your help!

24

What current VESC’s are usually used do you know? Because surely starting off current is at least 70A?