Ed's 'StreetRunner' Quad Build

Joined
Oct 19, 2012
Messages
543
Location
Wakefield, UK
The only one I have experience of had a thumb throttle and pedal assist. The assist was fairly smooth and proportional to the choice of setting but the throttle was closer to an on/off button. You could get part throttle but it felt nearer a two step half power or full option.
 
Joined
Feb 20, 2013
Messages
466
Location
Axedale, Victoria, Australia
Website
axerail.coffeecup.com
Can't remember what my throttle experience was except that when I removed it, its operation was not being sensed. On installation, I had to cobble up a wiring harness extension for the trike and probably bumped it some months afterwards and caused a disconnection. The display indicated a throttle error. The same fault occurred to the rear wheel speed sensor and I know it was a dodgy connection for sure. I have since sourced a proper wiring extension for that problem and it has not troubled me since.

For the information of anyone who has a Bafang BBS01 (it may be the same for their other models), the manual says it won't work with a speed sensor fault. This is only partly correct. All that will happen is that the control panel will refuse to follow any further button presses. Fortunately, or unfortunately, depending on your viewpoint, you will be stuck with the degree of assist that you had before it went on the blink. One way around it is to stop, make the change, and start off again.
 
Joined
Sep 12, 2012
Messages
2,545
Location
Apple Valley, California, USA
Cutting out the top panel for the back. You know...the one that will hide the oop's.


Before ...... with oop's showing. (Remember the corners have different radiuses)


And after. It's a cover up I tell you.
Both curved corners now match.




Welding this thin 20 gauge metal, certainly has it's challenges.


I'm running my Hobart 140, @ #2 and +/- 30 wire speed. Setting of #1 is way to low, so there's no other choice.
I'm using a tack/stop, tack/stop method and I still get a blow through once in a while.

Practice/Practice/Practice....still...LONG LIVE THE GRINDER
 
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Joined
Sep 12, 2012
Messages
2,545
Location
Apple Valley, California, USA
Not much happening today...yet!

I have however, branched out to Endless Sphere for yet more info.
I've looked in on them, once in awhile, but never had a need to get involved, until now.
So I decided to expand my learning curve and branch out, and register with them.
https://endless-sphere.com/forums/viewtopic.php?f=7&t=104270

I'm really wanting to get into the power aspects of this project,
but I'm entering a world that is still o_Oo_O...need I say more?
 
Joined
Sep 12, 2012
Messages
2,545
Location
Apple Valley, California, USA
No more work on the StreetRunner, but I have been busy over on Endless Sphere.

There has been a lot of communication with fletcher and amberwolf, discussing specs and alternatives.
There is information there that may be relevant to something you are working on, or contemplating.

I've given a mention back to AtomicZombie.com, regarding my build.
If you're following my build, jump over to the link below, and catch up with what's happening there.

It's interesting how the conversations, opinions, suggestions have evolved from the beginning to present post.
For example, we're now discussing the feasibility of using two 1800 watt motors, instead of going for a much larger one, in size and weight.

Once you've caught up, come back here, and throw in your 2 cents ...please and thank you.

BTW, over there I'm ... Just-Ed

https://endless-sphere.com/forums/viewtopic.php?f=7&t=104270
 
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Joined
Sep 12, 2012
Messages
2,545
Location
Apple Valley, California, USA
Milk float motor?
Well now, I think that's 'just the ticket'. I do believe it would 'just fit'. However there would be no space left for the driver/passenger.
Not a bad price though at 230 GBP. And I get to collect it myself, all 100 kgs.
And speaking of tickets, The current rate to London and back +/- $1000.00 USD

So far I'm up to, lets see, That's +/- $300.00 for the motor, $1000.00 for collection. $50.00 gas to the LA airport,
Lorry rental at Heathrow..???? Additional baggage charge for being overweight.
Fish and Chips and a brown ale. (Priceless)

Over budget costs
Man hours, additional materials, and cost calcs for redesign and fabrication.

Popshot, I know you had my best interest in mind, and I truly appreciate the effort.

BUT !, I'm leaning toward running two smaller motors. (If it works out that I can)
It will be cheaper in the long run. Final decision still to come.
 
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Joined
Sep 12, 2012
Messages
2,545
Location
Apple Valley, California, USA
After much discussion with the folks at Endless Sphere, I'm at the point of pricing, for a dual motor set up.

Two 48 volt 1800 watt motors, two controllers feeding off, one foot accelerator.
The logic is that with the limited space for drive components, and the need for more power,
two identical motors will help lessen stress on each motor, and still provide sufficient power.

Depending how they are installed in the frame, there will be two jack shafts, either as separate units, or maybe a single/double unit.
Depending on the motors orientation, one motor may be wired, to run opposite the other, thus both motor shafts/gears will turn in the same direction.

Looked into examples of other similar works, so it appears to be doable.

Nothing is in concrete yet. Just looking into the feasibility and costs of using this method, vs a much larger motor and controller.

As always, your two cents is always welcome
 
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Twinkle

Super Moderator
Joined
Apr 14, 2013
Messages
3,579
Location
Peacehaven nr Brighton, Sussex ,UK
You will not need a diff to have 2 wheel drive . should work well .
As an after thought , you could always use a pair of dérailleur and rear mounted freewheels and get a multiple speed gearbox as well.

Keep up the good work

regards emma
 
Joined
Sep 12, 2012
Messages
2,545
Location
Apple Valley, California, USA
You will not need a diff to have 2 wheel drive . should work well .
As an after thought , you could always use a pair of dérailleur and rear mounted freewheels and get a multiple speed gearbox as well.

Keep up the good work

regards emma
Hi Emma. Nice to hear from you.

It's taken a fair amount of education and help from others, but I think I may be on a path that will work.

My latest posting
https://endless-sphere.com/forums/viewtopic.php?f=7&t=104270&p=1523879#p1523879
 
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