http://forums.aeva.asn.au/forums/ This is an XML content feed of; The Australian Electric Vehicle Asn : Last 10 Posts Copyright (c) 2006-2011 Web Wiz Forums - All Rights Reserved. Thu, 17 May 2012 19:54:46 +0000 Thu, 17 May 2012 17:38:06 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 10.03 30 forums.aeva.asn.au/forums/RSS_topic_feed.asp http://forums.aeva.asn.au/forums/forum_images/aeva_logo.gif http://forums.aeva.asn.au/forums/ http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37099&title=nevillehs-bmw#37099 Author: 4Springs
Subject: Nevilleh's BMW
Posted: 17 May 2012 at 5:38pm

weber wrote: What makes you think the EVWorks orange corro is any different from the usual heavy duty stuff?

'cos I bought some!
I bought it before I knew about heavy or medium duty conduit, and used it in my vehicle. When I ran out I went to a local electrical supplies shop and asked for some more. The stuff they sold me was thicker and much more ornery.

weber wrote: I'm not sure why they refer to a body part instead of using standard units

They must have small feet in WA.
I've run out of the stuff I bought from them, so I couldn't experiment with it. I do have some grey stuff though, and it feels about the same. I also have some heavy duty orange. I tried bending the grey stuff, and it easily bent to a 50 mm radius circle. I tried the same with the heavy-duty orange, and made a 100 mm radius circle.
No guarantees that what they sell today is what they sold me last year of course, either type would still meet their description...]]> Thu, 17 May 2012 17:38:06 +0000 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37099&title=nevillehs-bmw#37099 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37098&title=nevillehs-bmw#37098 Author: weber
Subject: Nevilleh's BMW
Posted: 17 May 2012 at 5:04pm

What makes you think the EVWorks orange corro is any different from the usual heavy duty stuff?

They say "minimum bending radius [for 40 mm] is about a foot". I'm not sure why they refer to a body part instead of using standard units, but I think this is clearly much greater than the 100 mm radius I just put into a piece of 40 mm medium duty (grey) corro. I overbent it to about 50 mm radius and when it relaxed it was 100 mm radius. (I made a full circle, measured its diameter and divided by 2).]]> Thu, 17 May 2012 17:04:07 +0000 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37098&title=nevillehs-bmw#37098 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37097&title=nevillehs-bmw#37097 Author: 4Springs
Subject: Nevilleh's BMW
Posted: 17 May 2012 at 4:06pm

I'm not sure if you actually want any flexible orange conduit, but it was mentioned...
The stuff they sell locally is "heavy duty", because it is made to go underground. If you want the more flexible stuff, they only sell it in grey. But EVWorks has flexible orange conduit here: Conduit
The other problem with the orange conduit is that it is not UV stabilised - presumably also because there is not much UV underground. I left mine in the sun for a while, and it has gone brittle. Should be ok if it is out of the light though.

Cheers,
Christopher.]]> Thu, 17 May 2012 16:06:58 +0000 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37097&title=nevillehs-bmw#37097 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37096&title=nevillehs-bmw#37096 Author: Nevilleh
Subject: Nevilleh's BMW
Posted: 17 May 2012 at 3:40pm

Well, there you go, my cable actually has a rubber outer sheath! Its a core of tin-plated Cu of numerous strands, then a pvc cover, then rubber. Probably because it came from a place that does boats. But paint sticks to it quite fine!]]> Thu, 17 May 2012 15:40:11 +0000 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37096&title=nevillehs-bmw#37096 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=2418&PID=37095&title=4springs-brumby#37095 Author: Johny
Subject: 4Springs' Brumby
Posted: 17 May 2012 at 2:11pm

4Springs wrote: In that time I can figure out if I need more or less battery capacity, so I can size the more expensive pack more accurately. It also gives me time to build a BMS!

Pretty solid thinking IMO Chris. The fact that it's going and just about approved is testimony to the decisions that you have made. Softening the initial financial blow has no doubt been a contributing factor to getting this far so fast (I realise that I am using fast as a relative term).]]> Thu, 17 May 2012 14:11:45 +0000 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=2418&PID=37095&title=4springs-brumby#37095 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=2418&PID=37094&title=4springs-brumby#37094 Author: 4Springs
Subject: 4Springs' Brumby
Posted: 17 May 2012 at 1:44pm

Nevilleh wrote: Hopefully, he will change to Li cells once he sees the light!!

Light seen, but it seemed a long way off at the time. Costs more money (which means more risk if I damage them), more trouble to set up, not sure if an EV was going to suit us anyway...
My intention is to go to Li cells (or whatever seems best) when this lot gives up the ghost. This is assuming that the Brumby turns out to be a vehicle which we are happy driving. Sounds like any time from 18 months to 5 years away. In that time I can figure out if I need more or less battery capacity, so I can size the more expensive pack more accurately. It also gives me time to build a BMS!

The Brumby was never going to be a miser, because of:
1. Weight (500 kg of PbA)
2. 4WD (an extra diff and plenty of cogs in the gearbox that I don't often use)
3. Wind resistance (if I keep that roo bar on the front anyway!)

It also has wide soft tyres on it, since as a petrol vehicle it was very light, and the wheels would lock up under heavy braking. This should be much better now with the extra weight, and I'll be able to buy some low rolling resistance tyres.]]> Thu, 17 May 2012 13:44:48 +0000 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=2418&PID=37094&title=4springs-brumby#37094 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37093&title=nevillehs-bmw#37093 Author: Johny
Subject: Nevilleh's BMW
Posted: 17 May 2012 at 1:02pm

I used grey conduit as well and spray painted it orange. It's flaking off every time I touch it but once the layer of road grime goes on it should be OK. Not recommended though. (The Engineer didn't notice.)
In a pinch (assuming you run into trouble) orange mesh could be used - you would be able to slip it over the lugs as well.
]]> Thu, 17 May 2012 13:02:15 +0000 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37093&title=nevillehs-bmw#37093 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37092&title=nevillehs-bmw#37092 Author: Nevilleh
Subject: Nevilleh's BMW
Posted: 17 May 2012 at 12:59pm

Yeah, sticking with bottom balancing until I get around to adding top balancing to the master firmware. My charger can do it OK.

BTW, gone back to AVRs for future projects, they can STIC the PICS.

Thanks for the tip about electrical tape, I'll see what I can get. I've a good mind to paint all the wiring orange, just for spite. It doesn't say the low volatge stuff can't be orange.]]> Thu, 17 May 2012 12:59:57 +0000 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37092&title=nevillehs-bmw#37092 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=3076&PID=37091&title=a-must-watch-video-tilting-trike-action#37091 Author: Richo
Subject: A MUST WATCH VIDEO - Tilting Trike Action
Posted: 17 May 2012 at 12:52pm

gholm wrote: there'll be shedloads of them creeping out of the woodwork soon enough. (read China/India)

Until they get some good QC in the other countries they can keep them.
]]> Thu, 17 May 2012 12:52:49 +0000 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=3076&PID=37091&title=a-must-watch-video-tilting-trike-action#37091 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37090&title=nevillehs-bmw#37090 Author: weber
Subject: Nevilleh's BMW
Posted: 17 May 2012 at 12:46pm

Good to hear it's all going well for you Neville. Are you sticking with bottom balancing?

Orange electrical tape is the go. Paint will not stick to glossy PVC, although you could try sanding the gloss off and using acrylic (water-based) paint. But for covering black I think tape will be much easier.

If the cable is in conduit, the conduit has to be orange, but the orange corrugated conduit is thick-walled and inflexible so we use the grey corro and when it's all bent into shape, but before it's finally fitted, we wind orange electrical tape from one end to the other with about a half-width overlap. It looks quite good.

It's not a commonly stocked colour but Haymans Electrical got a 10-pack in for me.]]> Thu, 17 May 2012 12:46:11 +0000 http://forums.aeva.asn.au/forums/forum_posts.asp?TID=1446&PID=37090&title=nevillehs-bmw#37090