12-07-2010, 03:39 PM
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#4101 (permalink)
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Master EcoModder
Join Date: Sep 2009
Location: Ireland
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Paul,
Number 3 should be first priority  I got a ton of little 4 way leads for the lem and serial port from scrap tv sets. Might be worth a look. I may even have a few left ........
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
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12-08-2010, 06:25 AM
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#4102 (permalink)
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EcoModding Apprentice
Join Date: Oct 2010
Location: southland NZ
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Hi Sawickm,
Have you tried doing engineering in imperial units?
Everything has a different coefficient - and the units! - rotary slugs anybody?
When I worked in America I used to convert everything to SI - do the calculations - then convert it back to Imperial
Are there imperial units for electrical things? - Imperial Volts!
New Zealand is not perfect - but its the closest I could find!
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12-08-2010, 06:57 AM
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#4103 (permalink)
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PaulH
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
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I always wanted to go to New Zealand. My dad went there for a business trip. He works at Weyerhaeuser, and they have a bunch of trees down there too, so the company wanted to see how NZ does their timber stuff. Well, he was at a dinner, and the guy across the table told him that he was so plump and juicy looking, that his great grandfather would have eaten him! hahaha. He was a Maury or something like that.
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12-08-2010, 02:17 PM
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#4104 (permalink)
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Master EcoModder
Join Date: Nov 2008
Location: 18603, USA
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Quote:
Originally Posted by MPaulHolmes
I always wanted to go to New Zealand. My dad went there for a business trip. He works at Weyerhaeuser, and they have a bunch of trees down there too, so the company wanted to see how NZ does their timber stuff. Well, he was at a dinner, and the guy across the table told him that he was so plump and juicy looking, that his great grandfather would have eaten him! hahaha. He was a Maury or something like that.
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A New Zealander man with a permanent tan, that's a Maori... 
My new ray-gun here tries to poke out both your eyes, it's a Moe-Ray....
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12-08-2010, 05:43 PM
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#4105 (permalink)
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EcoModding Apprentice
Join Date: May 2009
Location: Australia
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When the moon hits you eye like a big pizza pie, That's amore
Quote:
Originally Posted by Nevyn
A New Zealander man with a permanent tan, that's a Maori...
My new ray-gun here tries to poke out both your eyes, it's a Moe-Ray....
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12-08-2010, 06:05 PM
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#4106 (permalink)
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Computer/EV enthusiast
Join Date: Jan 2010
Location: Indiana, USA
Posts: 32
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Copper shielded enclosure
In case anyone has lots of leftover PCB, this kind of enclosure will probably solve the radio interference problem: Copper-clad enclosures - Hack a Day |
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12-08-2010, 07:14 PM
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#4107 (permalink)
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AC-DC enthusiast
Join Date: Nov 2009
Location: Long Island, NY
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Quote:
Originally Posted by Grimm
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Are we talking of a" Faraday type of enclosure"..?........I worked inside of some of these ( but a much larger scale one) for a while, a Long time ago tunning military RF equipment.
Dec 09
EDIT: this is getting out of hand; FYI, I worked in a wrounded cage build by a metallic diamond shaped SS mesh.
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. .. .. . .... ...
Prius Absolutum Dominium . ..........KOPPER
PHEV conversion since Dec 2006.. . .... .Future EV
. . . . . . . .CALCars # 27. . . . . . . . . . ..on the works now !!
. . . . . . . . . . . . . . . . .. . ........
Last edited by mrbigh; 12-09-2010 at 06:37 PM..
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12-09-2010, 01:55 AM
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#4108 (permalink)
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EcoModding Apprentice
Join Date: May 2009
Location: Australia
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Correct me if I am wrong please, my recollection of a Faraday cage is that it does not have to be solid walled, it can be gauze as long as the largest hole is smaller than the wavelength of the highest frequency you are trying to shield.
In any case using PCB would be no better than folding up some aluminium (or aluminum for you imperialist Americans )
Why do Americans call it aluminum? They don't say uranum, or lithum or radum or titanum........somewhere back in time there must have been a misprint in a periodic table used in their schools.
Heh, heh, some of them do say sodder and heigth though, at least ones from Minnesota. |
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12-09-2010, 06:22 PM
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#4109 (permalink)
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Computer/EV enthusiast
Join Date: Jan 2010
Location: Indiana, USA
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Quote:
Originally Posted by mrbigh
Are we talking of a" Faraday cage"..........I worked inside of some of these ( but a much larger scale one) for a while, a Long time ago tunning military RF equipment.
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Well it would work as a faraday cage, but a faraday cage can also be a mesh that has to be at least a certain fraction of the wavelength of the expected interference (I forget the fraction though) Mostly it's just a good way to use waste PCB and shield your controller at the same time.
News from the control panel/picture frame department, this might be useful when it comes out depending on the price. It's a digital picture frame that runs linux and can be coded in Flash, LUA, or the Android SDK. Does that mean someone could write code for this and a smartphone at the same time, perhaps? |
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12-12-2010, 09:20 AM
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#4110 (permalink)
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Master EcoModder
Join Date: Sep 2009
Location: Ireland
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Here's a quick video of a few tests on the new code from Fran with rpm monitoring:
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
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