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Old 09-23-2018, 04:32 PM
adr826 adr826 is offline
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Default pictures of my homemade scooter

Aside from the batteries every part of the scooter was free, either found or repurposed. The bottom picture is the homemade switch attached to a handbrake. The second shows my two motor setup.
Top speed around 20 mph.
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Old 09-24-2018, 06:44 AM
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I am speechless.
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Old 09-24-2018, 06:52 AM
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Albeit I'm a fan of the recycling aspect of any project, that kinda look like a fire is imminent, or a complete runaway motor soon enough.....
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Old 09-24-2018, 08:01 AM
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I like it. But then again, I'd use a 13 amp fuse in a 10 amp slot.

How do you get going? Do you just flip the switch and hold on, or do you walk it to a rolling speed and then hit the BWS (big wooden switch).

One option to consider is a foot switch located on the inner portion of one of the pegs. You could just relocate what you have, but you would make it a momentary switch that you must keep your foot on to stay engaged. Just keep it beefy or it could arc-weld closed. Those circuit breakers will act as a good fail safe for disconnect. You could either fab it, or source it from an old power wheels or even and old sewing machine foot pedal.
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Old 09-24-2018, 02:01 PM
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Where do you draw the line between scooter and electric motorcycle? Is it a question of speed? Because this frame looks like a motorcycle.

and that seat. omg that seat. With a couple staples or nails you could make it look a little better. Looks like a log was strapped down with a jacket thrown on top, bailed down with hose clamps. I've seen used jeans turned into a better seat cushion. just saying. not trying to be mean.

At least when that switch fuses closed you only top out at 20mph. slow enough to jump off and live.

p.s. looks like you have a breaker in line for safety?? that is at least good.
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Old 09-26-2018, 05:35 PM
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Quote:
Originally Posted by mckutzy View Post
that kinda look like a fire is imminent, or a complete runaway motor soon enough.....
A switch in series between the 2 batteries makes an excellent kill switch for emergencies.

Quote:
Originally Posted by TT540 View Post
I like it. But then again, I'd use a 13 amp fuse in a 10 amp slot.

How do you get going? Do you just flip the switch and hold on, or do you walk it to a rolling speed and then hit the BWS (big wooden switch).

One option to consider is a foot switch located on the inner portion of one of the pegs. .
Will fuse it thanks! To get it going you push off while sitting down, but thats just a courtesy it will fling you slingshot style if you dont

I was considering using whats called a rectactor circuit Which is a way to switch between 2 12 volt batteries in parallel to 2 12 volts in series
at 24 volts. That gives you two speeds while discharging both batteries at the same rate. This of course makes the batteries last longer and you can charge both batteries at the same time. Iwas going to put the switch on the foot plug to accelerate

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Originally Posted by pRoFiT View Post

and that seat. omg that seat.

At least when that switch fuses closed you only top out at 20mph. slow enough to jump off and live.

p.s. looks like you have a breaker in line for safety?? that is at least good.
I am still giving it 1/4 mile tests so I wont do anything cosmetic till I'm sure its mechanically stable. I hate having to rip up my own work because a cog slips out of alignment. The switch is spring loaded with an adjustable tension. There is no chance of that switch fusing closed. As a matter of fact that is precisely the reason I use this switch. My last scooter had about 3000 miles before I retired it and had a similar switch. It is very reliable
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Old 09-27-2018, 01:00 AM
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I might have to say FAPR for this one, but I like your ingenuity!!

Post up a vid of you riding the thing
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Old 09-27-2018, 01:15 PM
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Yes lets see some carnage on video.

On the dual motors. is that just because you had them. wouldn't one bigger motor be better? I've seen a couple dual motors setups but feel its just because they had them not because it was planned out.
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Old 09-28-2018, 03:48 AM
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Quote:
Originally Posted by pRoFiT View Post
Yes lets see some carnage on video.

On the dual motors. is that just because you had them. wouldn't one bigger motor be better? I've seen a couple dual motors setups but feel its just because they had them not because it was planned out.
The dual motors was because one wasnt enough.I built it with one and it was too tame so I added the other. I have two 1000 watt motors I wanted to use but my motto is its not how fast you can go but how fast you can stop that matters so I settled on the two smaller motors.

I've been building and riding these things for a while so you probably wont see any carnage. I do a lot of testing first and then I start the carnage.
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Old 10-05-2018, 08:03 PM
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You may wanna do some more research & then spend a few bucks on a "proper" speed controller.

I've played with DIY "homemade' speed controllers, it didn't turn out so well.



Later, I did some tests with (2) different speed controllers & also without a speed controller (just a "beefy switch")



"Analysis, of the (3) tests with the ZY1020 48V 1,000W motor

Alfa Wheels speed controller
Take-off ~25A
Accelerating ~25A
Constant/crusin' ~12A
Top speed ~14 MPH

TD Pro speed controller
Take-off ~30A
Accelerating ~30A
Constant/crisin ~10A
Top speed ~14 MPH

With-out a speed controller (just a battery pack, beefy switch & motor)
Take-off (up to) ~100A
Accelerating ~50A
Constant/crusin ~10A - 12A
Top speed ~14 MPH

The only advantage, I see, is a "harder" acceleration
...but, at the expense of "lots" of amps
& the top speed was still ~14MPH either way "

IMO
If you use a proper speed controller, you'll get better/smoother acceleration (= more desirable experience) & a lot better/efficient use of your battery packs capacity (= more range)
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