Drift trike build (NZ)


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djotter

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Jun 11, 2018
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Inspired by Colin Furze (http://www.colinfurze.com/electric-drift-trike.html) I thought I would try my hand at building a little bike to run around on and have fun with the kids (and big kids :))

Here is a parts list I have put together, any comments would be appreciated!

Plan is to make a monolithic 10s20p pack that would line up with the motor rated 35A while drawing 1C from the ~1700mAH cells.

https://docs.google.com/spreadsheets/d/1q7Ia0d4M2eu3BC0jD1few_xzIvbPGPKv4EwxBTo9hSI/edit?usp=sharing


Questions I have already:
1. Is the motor too anemic to get the kart going with estimated ~180kg of kart+big kid?
2. Is only a pack fuse a good idea?
3. Is a single pack a good idea? Split into 10 x 1s20p?
4. Options for cheaper rear axle? Old quad bike?
 

daromer

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Oct 8, 2016
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5,662
Nice that you look into building!

My 5 cents for the build.
The motor choosen is not the best. I have used them on several builds but they tend to die rather fast and be rather sluggish :p With that said its a good first start. Personally I like RC motors better that easy do 2kW or more. BUT they can be trickier to work with due to higher rpm and you need an ESC that can to high torque low rpm.

1. The motor is in the smalles league. Yes it will work but 180kg? What kind of kart do you work on.
2. Pack fuse is enough. I would not fues each cell on such a wehicle.
3. Single pack for sure. There is no need doing 10 packs...
4. 2nd hand axle. But the axle depends on the kid. Do you plan 150kg person on it and doing jumps or 50kg kid and just skidding on the lawn?
 

jaeger-audiodesign

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Aug 23, 2018
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27
I planning something similar. A wooden GoKart with a 3000W 72V motor from the same series you choose.
I want to power it up with a 20s10p pack.
 

djotter

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Jun 11, 2018
Messages
9
daromer said:
Nice that you look into building!

My 5 cents for the build.
The motor choosen is not the best. I have used them on several builds but they tend to die rather fast and be rather sluggish :p With that said its a good first start. Personally I like RC motors better that easy do 2kW or more. BUT they can be trickier to work with due to higher rpm and you need an ESC that can to high torque low rpm.

1. The motor is in the smalles league. Yes it will work but 180kg? What kind of kart do you work on.
2. Pack fuse is enough. I would not fues each cell on such a wehicle.
3. Single pack for sure. There is no need doing 10 packs...
4. 2nd hand axle. But the axle depends on the kid. Do you plan 150kg person on it and doing jumps or 50kg kid and just skidding on the lawn?

Excellent, thank you for feedback :)

1. The 180kg comes from me being 105kg, and the rest is a loose guess for the kart.
4. 105kg person doing skids on the lawn :p


Do you have any suggested motors?
 

Sean

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Oct 8, 2016
Messages
936
djotter said:
Do you have any suggested motors?

Something like this should provide slightly more than adequate performance.


image_wpnrkd.jpg
 

djotter

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Jun 11, 2018
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9
Sean said:
djotter said:
Do you have any suggested motors?

Something like this should provide slightly more than adequate performance.


image_wpnrkd.jpg

What is it?

EDIT: oh a Tesla Model S motor, sorry $18k is just outside my price range :D
 

djotter

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Jun 11, 2018
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9
I went to a forklift service and repair yard and found a 24V 1.8kw 96 amp DC motor (wish now I had taken a picture) rated for 60 minutes duty. It is the drive motor in a personnel lift like this

[img=200x200]https://www.horizonplatforms.co.uk/...attery-Personnel-Lift---Genie-GR20.jpeg[/img]

The guy said I could have it for NZD$400 (USD$265, AUD$380) and take all the controller, wiring and switches that I want, and the 90degree drive on the end. Though the controller looked quite complicated with safety cutouts and extra sensors, so I'm not sure how much use it would be.

What do you guys think?

I would have to re-configure my battery plan from 10S to 7S, and to keep the ~1C discharge rate I would need 7S44p and an extra 100 batteries.

They also had a 1kw 72V motor, but i'm not sure if that would be enough.
 
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