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

[Hyena]

I wanted to launch off those ramps hard but as I got closer I saw they had a square edge on them so I would have stacked spectacularly if I tried to skip off the side of that :lol:
I've seen a few ramps like that on my commutes that beg me to jump them but most have raised sides. I did come across a removalist van the other day that had a perfect flat wood ramp but hte guys were walking backwards out of the van with a table at the time and I suspect it would have been highly frowned upon if I tore past them like that

edit: w00t, 3000 posts.
I need to get out more :lol:

 

[icecube57]

Man the 5v meanwell ... if i can find an olds school tweaked to 50A would be perfect for my power supplies but then again you face over drawing from a single outlet... but i suppose i could tweak the curren to like 40A then also the voltage might be to high to bulk charge i would have to tune both my supplies to 11.9v and find a 3.3v meanwell and find do the voltage pot mod to see if i can get it to drop down to 1-2v lol

 

[GCinDC]

Guess which segment is there for your Greg

tempting indeed!

hilarious chart, btw. very scientific. posting to your thread as a courtesy.

might be a tad big for your sig, but i've seen other outrageous things there, so why not?? :lol:

 

[RallySTX]

GCinDC, LOL Only gripe is Pamela Anderson spanks Zena hands down!
Brian L.

 

[Hyena]

I thought Xena was tough/chunky looking in keeping with the big hubs. I wasn't comparing silicon content
Rihanna was kind of a last second random addition but I thought "hmmm, who can I put that takes some abuse"
Oh and shame on anyone who knows who Kimber James is :lol:

 

[Scruffoid]

Jay now i am a bit worried.

I had no idea who it was but i am suprised that you had it on your list.

ROFL. I love the pics and descriptions

 

[Hyena]

haha yes I had no idea who she, err he was until I saw THIS [/rl] other day

In other news, Hobbit just dropped around to show me his Rans Fusion build that's nearing completion. And of course when ever you get 2 ebikes together there's going to be a race!
I'm on my daily ride, a modded 9C, hobbit on a HI4080. Both similar states of charge (no 80% ?) 18S lipo (mine were old and tired and lower capacity so had a little more sag) Hobbits bike felt quick due to the chopper like seating posting and layed back geometry but side by side there was nothing in it, if anything mine was a bit quicker. I think his CA or 3 speed switch are holding things up though as he should be faster than that. I have the same HI4080 motor on my fighter in a smaller 24" rim with chunky offroad tyres and it's quicker so something is definately wrong with his set up. Interesting ride though!

The vid quality is pretty poor with bugger all available light but meh, the audio tells the story. Nothing too exciting but I recorded it so figured I'd post it. The oncoming taxi high beamed hobbit when he turned his 3xT6 LED headlight on :lol:


[youtube]v8qxXxUu0Ms[/youtube]

 

[Hobbit]

I think his CA or 3 speed switch are holding things up though as he should be faster than that. I have the same HI4080 motor on my fighter in a smaller 24" rim with chunky offroad tyres and it's quicker so something is definately wrong with his set up. Interesting ride though!

Hmmmm.... 95kg rider in his winter woolies?? I definatly think the problem lies somewhere between the seat and the sky. :lol:

I'll go run through "Methods Icharger foam cut calibration step by step guide thang" in the next week or two..

I'll beat you next time...next time!!

Oh, and that was an absolute blast of fun! freezing cold but total giggle factory.

 

[Hyena]

Heh yeah you're on for a rematch. I'll put my fighter pack together so it's a fairer fight
But yeah you should definately calibrate your shunt - it's probably more like 1.1mohm so it'll throw your AH usage out a bit + the CA will be holding you back at programmed limit. The controllers aren't specced for much more than 50a out of the box so I'd just set the CA to 99 amps and remove it from the equation.

Also, I tried my hand at sketchup a bit more and got closer to what I want to make. It's still a bit rough with a few angles and lines not right (eg up around the controller / headtube) but it gives a better idea. Most is fairly accurate to scale though the angles aren't exact especially the seat and chain stays which may end up changing a little. But yeah, that's what I'm aiming for for the hardtail.

Look alright ? I reckon it's pretty good for something that will take any hub motor (planning to have 150mm drops) and over 1000 whrs of lipo.

 

[sn0wchyld]

Heh yeah you're on for a rematch. I'll put my fighter pack together so it's a fairer fight
But yeah you should definately calibrate your shunt - it's probably more like 1.1mohm so it'll throw your AH usage out a bit + the CA will be holding you back at programmed limit. The controllers aren't specced for much more than 50a out of the box so I'd just set the CA to 99 amps and remove it from the equation.

Also, I tried my hand at sketchup a bit more and got closer to what I want to make. It's still a bit rough with a few angles and lines not right (eg up around the controller / headtube) but it gives a better idea. Most is fairly accurate to scale though the angles aren't exact especially the seat and chain stays which may end up changing a little. But yeah, that's what I'm aiming for for the hardtail.

Look alright ? I reckon it's pretty good for something that will take any hub motor (planning to have 150mm drops) and over 1000 whrs of lipo.

man, that does look rather good. and to get a kwh in a frame that looks very 'bike' like is a damn good effort! keep it up mate, im looking forward to seeing a finished product.

 

[Hobbit]

Heh yeah you're on for a rematch. I'll put my fighter pack together so it's a fairer fight

Well you do kinda owe me a ride on one of yours so...... :lol:

But yeah you should definately calibrate your shunt - it's probably more like 1.1mohm so it'll throw your AH usage out a bit + the CA will be holding you back at programmed limit. The controllers aren't specced for much more than 50a out of the box so I'd just set the CA to 99 amps and remove it from the equation.

I've set it at 1.1mohm and changed the CA so if it ever stops goddamn raining, ARGH, i'm starting to think i should have built an ark instead of an e-bike.

Look alright ? I reckon it's pretty good for something that will take any hub motor (planning to have 150mm drops) and over 1000 whrs of lipo.

it's coming along real nice,Hyena Industries prototype flagship FTFW now could you put on wheels and a seat and bars and a rider and some trees in the background and....jokes.

 

[Tom L]

Looks great! Just confirming, they're 5000mAh 6S packs?

 

[Cowardlyduck]

Also, I tried my hand at sketchup a bit more and got closer to what I want to make. It's still a bit rough with a few angles and lines not right (eg up around the controller / headtube) but it gives a better idea. Most is fairly accurate to scale though the angles aren't exact especially the seat and chain stays which may end up changing a little. But yeah, that's what I'm aiming for for the hardtail.

Look alright ? I reckon it's pretty good for something that will take any hub motor (planning to have 150mm drops) and over 1000 whrs of lipo.

[/img]

Looking good Hyena. You keep that up and I'll have to start thinking about selling my Fighter and getting one of these instead.

Cheers,

 

[Hyena]

I've set it at 1.1mohm and changed the CA so if it ever stops goddamn raining, ARGH, i'm starting to think i should have built an ark instead of an e-bike.

Yeah this weather is miserable isn't it :|
It's costing me a fortune in petrol!

Looks great! Just confirming, they're 5000mAh 6S packs?

Yep - with capacity for 9 in total. So either 18S3P or 24S2P with a bit of room to spare.
I've planned the front tank section/top bar to accomodate an internal 12 fet controller but may rehash this a little to accomodate an 18 fet too for over 4-5kw usage. Or with the controller mounted externally (probably on the seat post, I don't like it underneath the down tube, stealth style) you could probably squeeze in 18S4P or 24S3P. That's going to make for a fairly heavy bike though.
But if you're going to run the sort of power levels that necessitate an 18 fet controller (I've been running 4-5kw peaks on my 12 fet for 2 years without incident) then an external controller will be the least of your subtlety concerns once you twist the throttle :lol:

Part of me wants to go the other way and make the frame even thinner for less capacity and just make it easier to run an external booster pack.
But then the whole point of this project is to have the battery neatly and safely housed inside the frame. And I don't reaaaaally want to have a whole fleet of these bikes with tweeked frame layouts in my garage depending on what mood I'm in
Though I would like to make a 2000w "super legerra" with an 8ah battery, small geared motor and trials bike rims with large drilled holes

Looking good Hyena. You keep that up and I'll have to start thinking about selling my Fighter and getting one of these instead.

Nah mate, just have one of each - one for during the week, one for the weekend :wink:

 

[Tom L]

Interesting. All my previous planning was with 8000mAh 6S2P packs but I can see how using 5000mAh packs makes the frame thinner. I'll probably go 6S4P and use a transvestite hub for ultra stealth. I don't need that much power in a commuter. Also this simplifies balance charging in bike using the Hyperion 1420 where as 18S or 24S requires some fiddling.
Rather than using a centronics socket I'm chasing up price breaks on some mil-spec connectors. If I can get a reasonable price and there's enough interest I'll sort out a group buy, though the ones with enough pins for 18S balance charging are probably not going to be cost effective.

 

[Scruffoid]

I've set it at 1.1mohm and changed the CA so if it ever stops goddamn raining, ARGH, i'm starting to think i should have built an ark instead of an e-bike.

Yeah this weather is miserable isn't it :|
It's costing me a fortune in petrol!

PUSSIES!

Its only water. I had a little lake form in my goggles yesterday on the way to work. At least i know the bike is fully waterproof as it really pissed down on me on my commute yesterday.

On todays commute I broke a spoke which caused the nipple to go into the tyre and pop the tube and then tore my tyre at the bead and im still smiling.

Have order some nice new hookworms from Glowworms that arrive on Thursday. Cant wait.

Get out and enjoy the rain like you did when you where i kid. Although i am forced to ride my bike at teh moment i still laugh out loud when it pisses down as its like being a kid again.

Have fun

Wayne

 

[Hyena]

Rather than using a centronics socket I'm chasing up price breaks on some mil-spec connectors.

I've used those and prefer the centronics, though they're very hard to get now and/or expensive.
The military style ones are good but a bit of a pain to connect and disconnect. Having to line them up right and then screw them right up so you get a good connection is more time consuming than simply slipping in the centronics.

Scruff, I've ridden in the rain before and actaully enjoyed it, once soaked. As I've said before if you think of it like riding a jetski it can be fun. But that's a summer activity, bugger doing it in this cold, dark weather

Bummer about the puncture. Is that the same as the one you broke the other day or a different one ?
You running slime ? It's quite handy for a commuter, especially in this weather where you don't want to be trying to patch or swap a tube in the pouring rain.

 

[amberwolf]

Centronics are easy to get, if you look around for old scrapped printers (for 36 pin) and SCSI devices (for 50 pin). Same for the cables that attach to those....

 

[Hyena]

yeah searching ebay there's heaps of centronics to USB printer cables but getting the female end can be tough. It's a time consuming job looking for busted printers though and then pulling it all apart and cutting and unsoldering everything!

 

[amberwolf]

I must be lucky, then, cuz I run into people ditching old printers fairly often--so often that these days I can rarely accept them, or I would have no room for htem at all.

If you have a need for a somewhat used printer-end connector (or more than one), I can dig out one from the handful of just-acquired dead printers that I'm never going to try to revive, and take the connector(s) off for you. I don't have any cables where I can find them, though. You'd just need to pay postage from Phoenix AZ 85051 to you. I suspect the smallest USPS flatrate box is the cheapest way.

 

[Tom L]

Rather than using a centronics socket I'm chasing up price breaks on some mil-spec connectors.

I've used those and prefer the centronics, though they're very hard to get now and/or expensive.
The military style ones are good but a bit of a pain to connect and disconnect. Having to line them up right and then screw them right up so you get a good connection is more time consuming than simply slipping in the centronics.

How about if I could get them in bayonet fittings rather than screw thread? Check out MIL-DTL-26482, http://www.mouser.com/pdfdocs/Amphenol_MIL_DTL_26482_Matrix.pdf

 

[Scruffoid]

Jay

I have broken 3 spokes all up.

2 broke on my ride today, well at least i noticed them today. The nipple on one of them came out of its hole in the rim and made its way between the bead the the tyre causing the huge damage i had today.

A bit of my own fault as always. Noticed something was wrong about 5 Km's before it happened but thought id fix it when i got to work. Then BANG! lucky i was going fairly slow at the time anyways and there was a nice shelter for me to sit at and replace the tube. Gotta make sure i keep a piece of ice cream tube or such to use in the tyre to stop the tube bulging out as in my case today.

Cold weather just means more layers of clothing. You cant make excuses LOL. I will take a photo of all the clothes i wear to ride. I have got 3 pairs of pants - lycra shorts with chamois, merino long pants and waterprrof bib and brace. 3 tops - one wicking 1 marino and waterproofjacket. ! beanie and a thinsulate ear cover. Also have waterproof shoe covers. Makes it hard to bend over but im nice and toasted even down below 0 Celcius

Should start a post of what everyone wears when they ride so we can have a laugh. Some of the guys riding in snow what be a great resource for us in winter riding.

Scruff

 

[icecube57]

http://www.ebay.com/itm/50-PIN-FEMALE-CENTRONICS-TYPE-CONNECTORS-2-pcs-/170449779561?pt=LH_DefaultDomain_0&hash=item27af993b69

There you go.... also consider cheating by using gender changers this may add unwanted resistance in the cable but it makes it easier to find stuff but i think the link above is what you want.

 

[amberwolf]

Oh--I also just remmebered I have a bunch of networking equipment with female centronics on there; I think they're 50pin. Might have the matching male cables somewhere. Not sure.
Connectors are currently on the boards pictured here:
http://www.endless-sphere.com/forums/viewtopic.php?p=555639#p555639

So if you like you can also find these things on old networking equpiment, which should be MUCH easier to get hold of than parallel-type printers.

 

[Architectonic]

Cold weather just means more layers of clothing.

Yes, althoug I'm going to have to wear a balaklava or something at 5 deg C as my face goes numb.


I got some lovely waterproof shoe covers today, I got some 2nd hand AlpineStars goretex gloves the other day, so all I need is waterproof/textile motorcycle pants and I'm all set.
(I did actually ride 27 km in poring rain the other day before deciding that all my gear sucked).