Parts for building an electric mini car(not street legal).

2428 Views 42 Replies 10 Participants Last post by Functional Artist, 2 mo ago

SG23

I would like to build a smaller mini car, about the size that kids would drive and I'm not looking for it to be street legal. Most of the posts on here are for conversions, but I want to do this from scratch and design the frame/chassis myself and buy the rest of the components. This is my first electric car project, and so far the parts I think I will need are. I would like to make it a sports car/Corvette style, and I have experience in 3D designing the frame & chassis, so I am not too worried about that.

Chassis
Motors
Battery
Axle
Differential
BMS
ECU
Suspension
Wheel
Tires
Motor Controller
Steering system

I'm sure this is not a comprehensive list, so please let me know if I am missing something crucial. I have had no luck getting a guide on building one either, so if you know of one I would appreciate that.

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Functional Artist

· #41 · 2 mo ago

Duncan said:
I'm with Brian on this
A "Live axle" is a driven axle - like the old Escorts and Cortinas - an axle that is one piece - normally with a diff in the middle

Hmmm...

Would the rear (driven) axle (that does not rotate) on the yellow go kart, in the video that I posted previously, be considered a "Live axle"?

...or another example

Bicycles, minibikes & motorcycles all ride on axles
...are their rear (driven) axles (that do not rotate) considered "live"?

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Duncan

· #42 · 2 mo ago

Functional Artist said:
Hmmm...

Would the rear (driven) axle (that does not rotate) on the yellow go kart, in the video that I posted previously, be considered a "Live axle"?

...or another example

Bicycles, minibikes & motorcycles all ride on axles
...are their rear (driven) axles (that do not rotate) considered "live"?

I would say that they are just "axles" - a "live axle" bounces around - if its locked solid its just an axle

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Functional Artist

· #43 · 2 mo ago (Edited)

OMG
Now, you'all are just confusing folks

"If" an axle (or any shaft, really) rotates it's considered "live"
...& "if" it doesn't it's considered "dead"

It doesn't matter "if" the axle is "driven" or not
...&/or "if" it's directly mounted to the chassis or suspended

Another example:
Hay Wagon (driven by horses & not by either of the axles)
..."if" the axles are mounted on bearings
...& turn, twist or rotate with the wheels
..."it" has "live" axles
&
..."if" the axles are not mounted on bearings
...& directly to the chassis
...& do not turn, twist or rotate with the wheels
...then, "it" has "dead" axles

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