Hyena's e-bike builds (now with HD video)

[Hyena]

That's a fair amount of miles in a short time, glad your dad is enjoying it!
Ideally I should have built my dad the same sort of thing as it'd be smaller, lighter and a bit better performing. But I had the pie spare and he liked the lack of extra wiring and external controller and not having to use a rear rack or enclose the triangle, so yeah.

And yeah riding in that smoke would suck, that's where an ebike excels as you're not heavily breathing in all that rubbish like you would be if you were pedalling hard. I rode through a bushfire very close to my house last year as I thought it'd make a cool looking video. Not one of my brighter ideas... :lol:

 

[t3sla]

Had that flat occurred only a few days later I would have been crowned slayer of Hyena's tires.

What's your thoughts on a BMS that's programmed for 4.15 / 3.6 (balancing disabled) and the BMS discharge only wired to the ignition enable wire on the controller.

Its like bulk charging with a condom on.... :wink:
Pray your LiPo didn't poke holes :-?

 

[Rix]

Pulled these pics off the web. Don't think we could ride through this.

Rick

 

[Hyena]

Had that flat occurred only a few days later I would have been crowned slayer of Hyena's tires.

Hah, true dat!
Funnily enough that was the only other time I've had a flat on the fighter.
Hopefully that is a thing of the past now I have Beefy McBeef on the back



Not all is happiness and instant gratification though. It clears the swing arm and slots in as I knew it would but getting the nuts to do up, the motor to stay in the dropout and the rear brakes to work is going to be a task. The nuts are just a tad too big to clear the cut outs in the swing arm. No biggy, a few minutes on the grinder to knock off 1mm around the rim will sort that out. Likewise I can make spacers or just run a second nut on the inside (this is what I do currently) to space out gap between the machined shoulder on the axle. But retaining the disc brake looks like a no goer unfortunately

It mightn't be super clear from this pic but the disc is a good 5mm if not more away from where the caliper will sit. Unless I flip the bracket to the outside of the mount on the swing arm and run longer bolts and a nut instead of the threaded IS adaptor...



So at this rate I'm going to have no f'ing bike working come saturday for our ride/shoot t3sla
I better pull my finger out and get the blue specialized working. Otherwise I can throw a new tyre back on the H40 and use it, but I really wanted to get cracking with this new motor and I know once I put the H40 back on I'll lose motivation to strip it back down again.

What's your thoughts on a BMS that's programmed for 4.15 / 3.6 (balancing disabled) and the BMS discharge only wired to the ignition enable wire on the controller.

This is something I talked about doing about 2-3 years ago. hehe
Well, as far as the BMS just hooked to the ignition to cut power goes anyway. My thoughts were that I could use a wimpy low current BMS to essentially just charge/balance through and employ its LVC to turn off the controller when flat.
I'm not sure what you mean by 4.15/3.6 (balacing disabled)
You mean something with a HVC of 4.15v and LVC of 3.6 that does nothing but cut the power ?
If so that's not ideal. 4.15v threshold for balancing with a HVC of 4.2v would be good. LVC of 3.6 is probably a little on the conservative side. Good for longevity of the pack but would rob you a little with voltage sag once you're at the 3/4 discharged mark. If you didnt want to go down to the largely accepted 3.0v I'd probably want 3.3v LVC - this is what I set my controllers at The CA is typically set a little higher at 3.5v/cell for those who forget to or naughtily (me) can't be bothered running LVC beepers. Obviously I dont recommend this to noobs but the chances of sudden cell death and overdischarging the others are slim, and as I always say if that cells was weak then it was going to die anyway

Its like bulk charging with a condom on

Always bulk charge with a condom on. No one wants to feel that burning sensation and unwanted discharge :lol:

 

[Hyena]

Pulled these pics off the web. Don't think we could ride through this.

Nasty. Lucky we didnt crash with the way we had the lipo pack ghetto strapped to the frame otherwise we could have caused that :lol:
I've ridden away from worse though

 

[Rix]

True that Jay, the pic does't lie. I see you got the 244 on. I would have tried the 241 first, but hey, thats just me. I see the chalenge with the axle space and disk brake alignment, but hey, you are the Hyenator. You will figure it out. Build an ebike in a log cabin room that worked great, this aint shit. Please keep us posted.

Rick

 

[Samd]

Kerrist, that tyre.
There's more meat in that rear end now than if I mentioned Gina Rinehart.

Hmm, I'm sure Chalo will suggest you go back to rim brakes.

 

[Hyena]

I see you got the 244 on. I would have tried the 241 first, but hey, thats just me.

Yeah it was a toss up. I'm not looking forward to taking it back off given how hard it was to get on! I'll have to invest in some big ass moto tyre levers. I was surprised to find these shinko marketed tyres aren't even stamped as such and just have their chinese name on them. I found the company and can order them direct now if I want more which saves on the stautory rape imposed by USPS in getting them from the US. Only problem is I need to buy 100 :lol: Hey that's only 50 bikes worth, maybe I need to scale up my operation.

you are the Hyenator. You will figure it out. Build an ebike in a log cabin room that worked great, this aint shit.

Tony Stark ES style. I like it :lol:

There's more meat in that rear end now than if I mentioned Gina Rinehart

Hah, can I shamefully admit that her name sounded familiar and that I googled it expecting her to be a pornstar. :lol:

Hmm, I'm sure Chalo will suggest you go back to rim brakes.

Hydraulic motorcycle rim brakes ? Sounds like a winner!
(seriously though expect regen only on the rear for now)

 

[Rix]

Kerrist, that tyre.
There's more meat in that rear end now than if I mentioned Gina Rinehart.

Hmm, I'm sure Chalo will suggest you go back to rim brakes.

Yah, rim brakes because Chalo said so. LOL LOL LOL :lol: :lol:

 

[t3sla]

Kerrist, that tyre.
There's more meat in that rear end now than if I mentioned Gina Rinehart.

Hmm, I'm sure Chalo will suggest you go back to rim brakes.

Yah, rim brakes because Chalo said so. LOL LOL LOL :lol: :lol:

Well to be exact roller brake, since this is a domestic motor with a rebuilt side cover...
Then again no one with that setup is riding off road, I hope....

The deadline should be a good motivator to finish the conversion, failing that I'll fix your bike. I was trained in the dark art of mechanical repair by Jeremy Clarkson, so all I need is a hammer (also works on fixing damaged lipo)

 

[Hyena]

I was trained in the dark art of mechanical repair by Jeremy Clarkson, so all I need is a hammer

haha I also trained at the Clarkson school of engineering and am a firm believer that a tool box only needs a can a WD40, duct tape and a hammer Oh, and a butter knife, they're all kinds of useful.

I'll swing by the local fastener joint this arvo and see if I can get some low profile 16mm nuts to solve my spacing woes. Then it's out with the angle grinder to make some torque arms. And then my least favourite past time, playing phase/hall wire roulette to find the right combo for the new motor.

(also works on fixing damaged lipo)

Funny you should say that, I have a video at home I never got around to editing or uploading belting the crap out of an old lipo pack with a hammer, screw driver, box cutter etc trying to get it to blow up. There's added comedy value because the hand I'm swinging the camera with is in a plaster cast :lol:
Sadly all I got was a little fizzle and a few bubbles when I drowned it.

 

[Samd]

Well to be exact roller brake,

C'mon. Chalo loves rim.

 

[Hyena]

C'mon. Chalo loves rim.

 

[Rix]

C'mon. Chalo loves rim.

He probably does.

Rick

 

[Hyena]

So no takers for the video shoot this weekend ?
So far it's t3sla and myself + one other guy has expressed interest. It'd be great to have 1-2 more people
Realistic looking toy guns would be a bonus if you spot any in toy shops of your kids have em.
I'm thinking the military type scenario will be easier to shoot rather than doing everyone up in zombie makeup.
I'm also planning an ebike get away / chase scene so if you wanna bring your bike that'd be cool but not essential as most of the clip will be capping baddies in the tram shed

 

[t3sla]

Well to be exact roller brake,

C'mon. Chalo loves rim.

That feeling of a hot metal clutched between two rubber pads :lol:

 

[Rix]

So no takers for the video shoot this weekend ?
So far it's t3sla and myself + one other guy has expressed interest. It'd be great to have 1-2 more people
Realistic looking toy guns would be a bonus if you spot any in toy shops of your kids have em.
I'm thinking the military type scenario will be easier to shoot rather than doing everyone up in zombie makeup.
I'm also planning an ebike get away / chase scene so if you wanna bring your bike that'd be cool but not essential as most of the clip will be capping baddies in the tram shed

Man Jay, if I was in Sidney, I would be there like white on rice with a glass of milk on a white paper plate in a snow storm with tighty whities on. But I am not I would supply some real guns with simunitions to boot. Oh well, I was born in the wrong country.

Rick

 

[Hyena]

Yeah a shame Rix, you'd be the final boss fight for sure
Real guns aside, I'm jealous of all the cool airsoft stuff you can get over there in the US. I was eyeing some off some in one of the stores I visited while there. Anything more than a water pistol is outlawed here

Further to the above if anyone who wants to play has camo or cargo pants or otherwise military looking gear if you have any that'd be cool. I also have a balaclava and body armour that similarly sized people can take turns at wearing - or BYO if you have it.
Hey bike armour and cargo pants was good enough for the terra nova series so it's good enough for me :lol:

 

[Cowardlyduck]

I'd also be keen for the video shoot if I were in Sydney still. It would be awesome if you could get some paintball action in a place like that. Then you could use the filming technique I pioneered years ago.
[youtube]i_YiN2SKsMc[/youtube]

Funny you should say that, I have a video at home I never got around to editing or uploading belting the crap out of an old lipo pack with a hammer, screw driver, box cutter etc trying to get it to blow up. There's added comedy value because the hand I'm swinging the camera with is in a plaster cast :lol:
Sadly all I got was a little fizzle and a few bubbles when I drowned it.

I regret not filming it now; I drove a garden stake through a 3S Zippy Compact the other day after it got severely damaged in a RC plane crash.
It put out a ton of smoke for about 5 seconds then burst into a massive fireball. Right when I thought it was finished and started to approach, another cell went off. Was putting out a good meter long flame for about 2-3min.
Made me a little scared of continuing to use them in my Fighter, but in reality it just makes me be more careful.

Cheers

 

[Samd]

Then you could use the filming technique I pioneered years ago.

??? I might be wrong but I thought the guy whose thread you were posting came up with it ???

 

[Hyena]

Yeah man, I first started using this style back when I was working for ID software in 1991.
An obscure little game called wolf 3d.
I went onto bigger and better things though, like helping Al Gore create the internet, and the environment.

I drove a garden stake through a 3S Zippy Compact

Was it fully charged ? That's the key to spectacular results I've found. If they're down around 3v they're very tame.
Listen to me, calling a lipo fire 'spectacular' like it's something your should strive to achieve... :lol:

Ok back on topic, I've been a terrible retard in fitting such a fast motor to my fighter :lol:
After playing hall/phase roulette and getting the winning combo I fired up the motor. I couldn't get to the local fastener joint to get more nuts in time yesterday (I got them this morning though) so the motor only held in the dropouts by finger tight nuts, and gravity. I slowly wound it up and it quickly maxed out the CA speed limited at 99km/hr. So I switched to MPH to see what it'd get up to and about 80 mph the CA started to have a spack attack, showing all random numbers. I thought the could read up to 99 mph as well but maybe not ?
It was generating huge wind, blowing papers off my desk on the other side of my garage. This was at about 80% throttle and with essentially no nuts holding it so I decided to call it quits before it tore away and ripped a whole through my garage gyprock wall, and possibly the time-space continuum. I have no doubt it'll hit 88 mph though, and we all know that's when you see some serious shit

Should be good to go for tomorrow morning t3sla, though I fully expect it to blown my 18 fet controller as it's so bat shit fast.

 

[Samd]

I'm tempted to get on a plane just to see that sh|t tomorrow. Hell.

Man, no shaft bolts. Fingertight. Does ES have a Darwin award? I'd be lying if i said I'd be waiting for bolts too. When you are in the shed and in the zone so much feels like a good idea. Then you see the kids at the breakfast table the next morning and it hits you.

be safe.

 

[Hyena]

Well I had bolts on, but to give you an idea of how much work they were doing, once the bike got above 60 mph the axle shifted and the tyre starts to skim the edge of the swing arm. I remedied this by leaning the bike over another 20 degrees and she sat nice and central again :lol:
It couldn't have really gone anywhere though - if it was spinning backwards yes, but spinning fowards in long horizontal dropouts it would have only inched forward to plow the tyre into the shock mount end of the swing arm.

Atleast this was a static test, unlike some other people *cough*methods*cough* who I recall taking a 2WD multi kw ebike for high speed passes with only V brakes held on by zip ties!

Back to the talk of pioneering video shots and gun mounted cameras, I thought I'd post up a bit of trivia to keep my thread both fun and educational

Did you know that the first portable video camera was actually built in 1882 and looked like a rifle ?

And the first "gopro" style portable action camera was pidgeon mounted and shot aerial photos in 1907

 

[Samd]

Now that is learning!
Were those pigeons the first NATO FPV drones?

Zip ties are best left on cables or in the bedroom. Zip ties and Brakes? Darwin's theory didn't include 'voluntary selection'. Strewth.

 

[Rix]

Jay, that thing gotta be good for 99MPH. Sum bitch it was fast in your video. Blowing the wind all over hell. Did you find out what the turn wind on the stator?