My CityBug project.

Lightweight / Folding / Portable EVs - seats optional
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amberwolf   100 GW

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Re: My CityBug project.

Post by amberwolf » Jan 22 2023 4:21pm

slaphappygamer wrote:
Jan 22 2023 3:53am
Some of the holes, I can’t get nuts on the inner part due to the axle nut being too close to some holes.
What about putting the bolts in the inboard (motor side) plates first, then sliding it onto the axle, then sliding the axle/plate assembly into the dropouts?

Then you don't have to turn the heads, only the nuts, and can even shape the heads (with a file, or grinder) to fit against the axle nut if necessary.


If you like, you can also file or grind away the excess bolt length, if enough sticks out past the washers, lockwashers, and nuts, to give you a problem or change the look negatively, and shorter bolts are too short. (This could be done with nuts on the inboard side as well, but is easier to do on the outboard side).
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slaphappygamer   10 W

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Re: My CityBug project.

Post by slaphappygamer » Jan 22 2023 7:50pm

I like the idea of grinding the nuts to butt against the axle nuts. I’ll try that method.

With the bolts inboard, they will not slide into the dropouts. I’ve drilled holes in the frame, outside of the dropout area. Those holes are for the torque plate bolts. Three on each side. The bolts will have to go directly in the hole. My only option is to have the bolts outboard with the nuts inboard.

The way everything is stacked is, from the motor out towards the axle end. Torque washer, torque plate, axle nut. Installed this way, I can not have the bolts inboard. I also can not mount the torque plates to the frame first, then slide the axle into them. With torque plates on both sides of the dropouts, I can not install the axle nuts. I’ll have to pay more attention to this on future projects.

Adding picture for clarity.
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Also added a light, bell, kid handlebars and mirror.
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slaphappygamer   10 W

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Re: My CityBug project.

Post by slaphappygamer » Jan 24 2023 7:11pm

Made a silly temporary deck.
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I was sure to have enough clearance from the battery. Got tired of stepping around it and now that my kid rides this with me, I needed more stepping area. Also got rid of that horrible rattling. It was like I was dragging a 5 gallon bucket down the street.

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ZeroEm   100 MW

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Re: My CityBug project.

Post by ZeroEm » Jan 24 2023 8:12pm

Have a light, mirror and a bell for passing bikes.
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2013 Nissan Leaf S 7 bars 331.5w/KM

slaphappygamer   10 W

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Re: My CityBug project.

Post by slaphappygamer » Jan 24 2023 8:31pm

Check, check, and check! :bigthumb:

Oh wait, I don’t plan on going that fast. Lol

slaphappygamer   10 W

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Re: My CityBug project.

Post by slaphappygamer » Jan 25 2023 11:53am

I’m curious. I’m debating on wether, or not, to get a new suspension fork. I could get this motor…

US $45.74 47% Off | 36V 350W Engine Motor Replacement for Xiaomi M365 Pro Electric Scooter Motor Wheel Scooter Accessories of Driving Wheels
https://a.aliexpress.com/_mNjIrkE

..and it would fit in my existing fork. The solid tire isn’t too bad. I’m looking at honeycomb tires, to see what else is out there. What I’m most curious about is if that motor will work with my controller. I got this kit….

Vbestlife 36/48V 450W Electric Bicycle Brushless Motor Controller Kit, E-Bike Dual Drive Brushless Motor Controller with 866 LCD Display Panel for Electric Bicycle Scooter Accessory https://a.co/d/ejJHaD5

…the regen is what I’m not sure about. The controller doesn’t support it, but the motor does. My concern is that the controller would take on extra heat with a motor that has regen. Since the controller does not support regen, maybe it won’t take that heat in? That is my question. This motor would be connected to the secondary controller.

Getting the above motor will mean I won’t have to replace my fork and it makes economic sense, to me. Function is also key. The hills around me are pretty steep and a second motor would be greatly helpful.

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ZeroEm   100 MW

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Re: My CityBug project.

Post by ZeroEm » Jan 25 2023 6:32pm

by slaphappygamer » Jan 25 2023 11:53am

I’m curious. I’m debating on wether, or not, to get a new suspension fork. I could get this motor…
Just a question, why do you need or want another motor? is the current one burn up or getting hot?
US $45.74 47% Off | 36V 350W Engine Motor Replacement for Xiaomi M365 Pro Electric Scooter Motor Wheel Scooter Accessories of Driving Wheels
https://a.aliexpress.com/_mNjIrkE

..and it would fit in my existing fork. The solid tire isn’t too bad. I’m looking at honeycomb tires, to see what else is out there. What I’m most curious about is if that motor will work with my controller. I got this kit….
Would not go to a solid tire, makes for a rough ride. Don't have enough information on the motor or controller, most should work, always a chance that it will not.
Vbestlife 36/48V 450W Electric Bicycle Brushless Motor Controller Kit, E-Bike Dual Drive Brushless Motor Controller with 866 LCD Display Panel for Electric Bicycle Scooter Accessory https://a.co/d/ejJHaD5
To off any help, what is it that you are wanting, more hill pulling power or speed?
…the regen is what I’m not sure about. The controller doesn’t support it, but the motor does. My concern is that the controller would take on extra heat with a motor that has regen. Since the controller does not support regen, maybe it won’t take that heat in? That is my question. This motor would be connected to the secondary controller.
Your understanding of motors is not correct. Most motors are dumb things unless they have something built in like a controller.
All motors support regen not a special function. The regeneration function is in the controller not the motor.
You spin a motor you can make electricity, coasting down hill, with your hand or an ebike by pedaling.
Getting the above motor will mean I won’t have to replace my fork and it makes economic sense, to me. Function is also key. The hills around me are pretty steep and a second motor would be greatly helpful.
Ok get it now you want two motors to get up the hills. Still would not want a solid tire.
Need to try to match the motors if not one would be doing all the work and get hot.
Need to make sure the wheel size is the same as the KV of the motors.
2019 Performer E-Trike
2013 Nissan Leaf S 7 bars 331.5w/KM

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amberwolf   100 GW

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Re: My CityBug project.

Post by amberwolf » Jan 25 2023 8:00pm

slaphappygamer wrote:
Jan 25 2023 11:53am
What I’m most curious about is if that motor will work with my controller. I got this kit….

Vbestlife 36/48V 450W Electric Bicycle Brushless Motor Controller Kit, E-Bike Dual Drive Brushless Motor Controller with 866 LCD Display Panel for Electric Bicycle Scooter Accessory https://a.co/d/ejJHaD5

…the regen is what I’m not sure about. The controller doesn’t support it, but the motor does. My concern is that the controller would take on extra heat with a motor that has regen. Since the controller does not support regen, maybe it won’t take that heat in? That is my question. This motor would be connected to the secondary controller.
Regen is initiated and controlled only by the controller, so it doesn't matter whether the motor supports it if the controller doesn't do it. The motor only does what the controller "tells" it to via the phase currents.


If your controller did do regen, and you used the regen braking function during braking in addition to or instead of mechanical braking, *then* the motor and controller would both heat up during regen braking (but not at any other time) because of it.


The only (hub)motors (without internal controllers) that don't support regen braking are those with internal clutches, like geared hubmotors. (unless they are specially designed in some way that a typical controller couldn't drive them as needed; I can't think of any).
If you found this advice helpful, supporting contributions are accepted here.

Beginning of a New Life


Give a listen to my music!

(More here, including experimental)
.

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