My mid-drive E-Skooter

Lightweight / Folding / Portable EVs - seats optional
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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » Mar 08 2018 5:43am

Front fork assembly. Had to use pillow bearings as the wheelbarrow wheel bearings are low quality ones. Doing it this way also enables me to adjust the fork length and orientation in many ways.
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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » Mar 24 2018 8:07am

Scooter dimensions
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Lipo battery box
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Ianhill   100 kW

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Re: My mid-drive E-Skooter

Post by Ianhill » Apr 05 2018 10:53am

I love this build it shows your determination to ride an electric scooter is so much you built your own,

I like the heavy duty front bearing on the plastic wheel I know most would say nasty things but they miss the point you have done well with what you was given, I'd ride it maybe not 50mph but I'd do a steady 20mph on her.

Those lipos do look puffed up be careful when charging them try do it outside in a place that if they blow they only take themself's out, myself I'd clamp a block of wood either side of a fresh pack they have served they purpose by the looks they are well used so charge slow and monitor the discharge with a volt ammeter to have a clue how stressed they are with voltage drop under load.

How do you charge ? what's the procedure and equipment you use ?

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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » Apr 07 2018 5:05am

Thanks Ian. The main reason I made this e-scooter myself is that I don't feel comfortable riding small ones like the evo or velocifero etc. They're just too small for anyone over 5' 11" or 6' tall. Besides, it's much more fun building it yourself.

This is my first experience building something like this. I will replace the plastic wheels with proper 14" or 15" scooter wheels later.

I use this RC lipo/li-ion charger from imax.
New-iMAX-B6-AC-80W-B6AC-Lipo-NiMH-3S-4S-5S-RC-Battery-Balance-Charger-EU.jpg_220x220.jpg
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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » Apr 07 2018 5:07am

So far there's no problem with the lipos. But as you said, they have seen better days and not very safe to use in the long run.
Last edited by armandd on Apr 20 2018 4:05am, edited 1 time in total.

Ianhill   100 kW

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Re: My mid-drive E-Skooter

Post by Ianhill » Apr 08 2018 10:14am

As long as you balance charge them and store in a place that's not full of combustible's your doing your best, In the words of a famous youtuber "you can only piss with the cock you've got" so them wheels are fine fella it's suits you fine and that's all it needs to do.
keep your dick in a vice.

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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » Apr 20 2018 4:04am

Ian, what do you mean exactly by "keep your dick in a vice"? Ha haa.. Anyway, the combo meter I ordered from aliexpress arrived yesterday. The LCD brightness seems okay indoor.
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Ianhill   100 kW

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Re: My mid-drive E-Skooter

Post by Ianhill » Apr 23 2018 4:40am

If you watch AVE on YouTube you will soon hear him say keep your dick in a vice it's a term for keep safe.

Good purchase keepin your eye on the total discharge figures etc.

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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » May 02 2018 6:49am

The height adjustable seat post that I made. Should be robust enough to support my 93kg frame. I haven't bolt it to the floor board yet. The seat has some springs and rubber bushes underneath. Those would be very useful to cushion shocks as this scooter has no suspension.
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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » May 20 2018 10:44am

Drive system testing on a table.


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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » Jul 19 2018 9:04pm

There's not much progress since my last post. I made a bracket from aluminium to attach the headlight to handlebar post. The headlight is really bright. It draws about 0.96A at 25.3V (about 24W).
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Ianhill   100 kW

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Re: My mid-drive E-Skooter

Post by Ianhill » Jul 20 2018 2:20pm

What the locals think of your ride ?

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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » Jul 21 2018 2:00am

Ianhill wrote:
Jul 20 2018 2:20pm
What the locals think of your ride ?
They keep asking why I don't just buy a scooter instead of building one myself. :lol:

Ianhill   100 kW

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Re: My mid-drive E-Skooter

Post by Ianhill » Jul 21 2018 8:23pm

armandd wrote:
Jul 21 2018 2:00am
Ianhill wrote:
Jul 20 2018 2:20pm
What the locals think of your ride ?
They keep asking why I don't just buy a scooter instead of building one myself. :lol:

If I'm on my bike I get some crazy responses mostly nice, my big scooter at the moment is off the road so I only have a 24v 500w razor e300 to pop to the shop and that's super slow :(

I've got a lot of ideas but I'm settling on a qs 10 inch 4000w hub for my next scooter and make my large scooter a 60mph 10kw tank I've been gathering parts like mice soon I will make a monster.

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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » Jul 22 2018 8:55am

Wow 4000W! :shock: That's good for running over small children, haha.. Yeah QS motors are nice but out of my budget at the moment. Do you plan to register it on the road? Where's your location Ian?

Ianhill   100 kW

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Re: My mid-drive E-Skooter

Post by Ianhill » Jul 22 2018 9:24am

Wales UK,
I save like mad and then blow it all on electrical stuff but sometimes my build works out well and I end up with something decent like my ebike took me a year but it's a comfortable cruiser swallows miles up and don't get a numb bum very plush ride.

I use my scooters off road on mountains paths with owners permission so there no need to register It i'm fairly responsible so it will stay off road, It may end up in a small wheel pit bike as that is a lot of power most I've had so far was 4.4kw and that felt rapid standing up doing 48mph had quite a few brown moments.

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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » Jul 29 2018 9:03am

Ian, I couldn't find your build post. Mind sharing the link? Anyway, I plan to build the floor board like this, with foot rests for more comfortable riding position.
scooter board 1.jpg
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scooter board 2.jpg
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Ianhill   100 kW

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Re: My mid-drive E-Skooter

Post by Ianhill » Jul 29 2018 12:23pm

viewtopic.php?f=35&t=82374

I like that deck it's got nice graphics and good idea to get your weight low, I find I ride sideways a bit too so I don't know if I'd be comfortable but I like the idea and where you going with it.

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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » Aug 16 2018 12:05am

Ianhill wrote:
Jul 29 2018 12:23pm
viewtopic.php?f=35&t=82374

I like that deck it's got nice graphics and good idea to get your weight low, I find I ride sideways a bit too so I don't know if I'd be comfortable but I like the idea and where you going with it.
Thanks for the encouraging words. :D

I think the look of this scooter without the seat post is growing on me now. :roll:
2018-08-16 12.51.58.jpg

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armandd   1 W

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Re: My mid-drive E-Skooter

Post by armandd » Oct 12 2018 7:55am

In the past few weeks I did some work on the rear wheel. Made adapters for the pillow bearings using some L-shaped aluminium. It's not finished yet, still figuring out the best way to do it. I also mounted the seat post to the floor board.
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