72V 100A 60Ah 4.3kWh 10s24p 200lbs.....

GoldenMotor.com

miked826

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Aug 6, 2011
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I like the way those big gauge wires look, and I like the way you ran them
Thanks much.

I tried to wrap as many wires together as I possibly could and to keep them as short in length as I possibly could to keep the Birds Nest Effect to an absolute minimum.

There are 2 massive cables that I am left to deal with. The "+" and "-" battery cables. The "+" cable is going inside the entire length of the top tube of the bike. The "-" cable is going on both ends of that 300A shunt.

I'm not too thrilled with where the 300A shunt is either, but it is where it is to hide the "-" cable that will run underneath the entire length of the motor mount.
 

miked826

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Aug 6, 2011
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2 Steps forward and 1 step back. Everybody sing along! LOL

My Top Hat adapter arrived and would not fit flush on the hub because it was too small to fit over it so I attacked my hub with a grinder nearly losing an index finger in the process. When it did finally fit flush it was somehow not level on the hub and the sprocket was all out of whack. I ground too much off the hub and pretty much destroyed it.

I also stripped out most of the threads and the disc mount holes trying in vain NOT to have to use a roller wheel tensioner on the motors chain. I tried to install the Top Hat every which way possible and also moved the rear wheel forward a few inches. It didn't matter. The chain would not clear the chainstay no matter what I tried.

Gonna move the front wheel to the back and I ordered a narrower front hub. The hub on the front wheel is actually the same hub that I just destroyed.
 

miked826

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Aug 6, 2011
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At approximately 6PM PST the unthinkable happened. 175 pounds of bike fell completely over on concrete, in what seemed like slow motion, 5 feet from me. The impact was absorbed at 3 points.

Point 1 - The left grip (slightly scuffed)

Point 2 - The empty license plate frame (badly mangled until I unmangled it back into its original shape)

Point 3 - Left rear running light (completely destroyed but still lights up)

The left pedal never even had a chance to make contact with the ground because it can't reach it. The ammo can suffered a few light scratches and that was it. What a sound the bike made when it hit the ground. I tried to scream but nothing came out of my mouth. LOL
 
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miked826

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Aug 6, 2011
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Added a motorcycle kickstand and a 5/8" motorcycle sprocket chain tensioner. I think I've just welded my last weld unless something gives way at speed. In which case I'll be welding again once I'm released from the hospital. Released alive that is. LOL
 

miked826

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Aug 6, 2011
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Maybe since it has crashed its got that all out of its system.
Smooth sailing, to ya, now on.
Thanks man. I was shocked to stand so close and watch it fall like an oak tree but I was more shocked when I picked it up and checked the ammo can that took the impact. Not a scratch, dent or deformation on it.
 

miked826

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Aug 6, 2011
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Well I installed the Turnigy batteries. then charged them up, then stuck the key in the ignition, said a little prayer and turned the key to the "On" position. The Cycle Analyst came to life, so I hit the throttle and revved it up without the chain on. The motors drive axle furiously spun up with my twists of the throttle and coasted much better than it did without the power on.

I then turned the key off and the Cycle Analyst shut off. Drama free and absolutely vibration free regardless of the RPM's.

The End. LOL

.flg.
 
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miked826

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Aug 6, 2011
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Congratulations, - well done :)
Waiting eagerly for vids lol.

Spoke too soon. LOL

I'm getting an audible constant tone alarm from the controller that could mean a dozen different things or maybe that just means it's on. I have no way of knowing what that tone means as there is no owners manual for the controller or the software to program it. There are no errors showing in the controller software. The motor spins when you hit the throttle but does not return to idle when the throttle does. The throttle is not controlling the motor at all.
 

miked826

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Aug 6, 2011
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Sounds like you need to spend some time over at

http://endless-sphere.com/forums/

Lots of Cycle Analyst users over there. They can probably help you sort out the warning tone.

All sorts of things to check in a system like that. Hall sensors, pole count, enabled or disabled features...

Good luck

.
The warning tone emanates from the controller and is caused by the Magura throttle being out of range. Which is solved by 2 resistors that have to be added between the throttle and the controller to bring that throttle into the correct range. Been doing a lot of reading on Endless Sphere.
 

miked826

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Aug 6, 2011
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I can also say that if you happen to accidentally touch, brush up against or rub both electrodes of 80+ volts...... that it hurts like H3LL! It will definitely wake your azz up if you're sleepy. It's not quite like being electrocuted by household current, but it's close. Holy Jesus I've been lit up a few times just like this smilie. zpt

Also the 6000 RPM redline on the motor is a "No Load" maximum. It might do about 4500 RPM with me riding it, so those insane top speeds I calculated just ain't gonna happen at that RPM.
 

FFV8

New Member
Oct 29, 2013
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Spring Valley NV
80VDC is nothing to joke about.

DC shocks are bad news, and can be fatal. Be careful, and use protective gloves when testing live circuits.

We had a guy die here in LV a few years ago because 144v pack in an EV was grounded. He touched the unprotected positive terminal of the shutoff switch when using his DMM - hand slipped and his finger hit the terminal. his bare belly was laying on the radiator support. DOA.

.
 

miked826

New Member
Aug 6, 2011
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Los Angeles
80VDC is nothing to joke about.

DC shocks are bad news, and can be fatal. Be careful, and use protective gloves when testing live circuits.

We had a guy die here in LV a few years ago because 144v pack in an EV was grounded. He touched the unprotected positive terminal of the shutoff switch when using his DMM - hand slipped and his finger hit the terminal. his bare belly was laying on the radiator support. DOA.

.
I've been electrocuted so many times by AC and now DC current. I couldn't tell them apart as both made the hair stand straight up and left me screaming. Each time it was luckily only for milliseconds or I wouldn't still be here.

At one point in time my entire bike frame was positively charged as I discovered with my DMM. I just looked at the meter reading and said, uh oh, something is seriously wrong here. LMAO

I've since corrected that issue.
 

Dan

Staff
May 25, 2008
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Mike, when and if the impending zombie apocalypse were to happen, some time soon, if at all, tomorrow happened, as it surly will, if ever, Would you suggest an electric bike or a gas, ICE motor bike as an urban assault vehicle?

Pros; no transmission/gear reduction. So less parts that can fail. More torque, greater "Bravely run away" speeds and cool/environmentally friendly, factor.

Cons; dead battery. Greatly reducing the "bravely running away" thing.

In these times of troubling world events and impending zombie infestation, this is an important cause to question and address! (if at all)


"I'm building a 2 wheeled Urban Assault Vehicle with dual 40mm grenade ammo cans in the back to hold 70 lbs. of LiPo's (72V 60Ah). When it's done, I'm gonna go crush stuff with it. LMAO"
 
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