Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free > Open ReVolt: open source DC motor controller
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-07-2010, 03:39 PM   #4101 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 304 Times in 171 Posts
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 ........

__________________
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
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 12-08-2010, 06:25 AM   #4102 (permalink)
EcoModding Apprentice
 
Join Date: Oct 2010
Location: southland NZ
Posts: 153
Thanks: 38
Thanked 86 Times in 55 Posts
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!
  Reply With Quote
Old 12-08-2010, 06:57 AM   #4103 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,362
Thanked 1,202 Times in 765 Posts
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.
__________________
kits and boards
  Reply With Quote
Old 12-08-2010, 02:17 PM   #4104 (permalink)
Master EcoModder
 
Join Date: Nov 2008
Location: 18603, USA
Posts: 759

The Crimson Crawler - '04 Hyundai Elantra GLS
90 day: 36.71 mpg (US)
Thanks: 221
Thanked 60 Times in 45 Posts
Quote:
Originally Posted by MPaulHolmes View Post
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.
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....
  Reply With Quote
Old 12-08-2010, 05:43 PM   #4105 (permalink)
EcoModding Apprentice
 
Join Date: May 2009
Location: Australia
Posts: 109
Thanks: 0
Thanked 2 Times in 2 Posts
When the moon hits you eye like a big pizza pie, That's amore
Quote:
Originally Posted by Nevyn View Post
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....
  Reply With Quote
Old 12-08-2010, 06:05 PM   #4106 (permalink)
Computer/EV enthusiast
 
Join Date: Jan 2010
Location: Indiana, USA
Posts: 32
Thanks: 2
Thanked 7 Times in 5 Posts
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
  Reply With Quote
Old 12-08-2010, 07:14 PM   #4107 (permalink)
AC-DC enthusiast
 
mrbigh's Avatar
 
Join Date: Nov 2009
Location: Long Island, NY
Posts: 282

Dual-PWR PHEV - '04 Toyota Prius

Kopper - '79 Bradley Bradley GT-II
Thanks: 123
Thanked 54 Times in 37 Posts
Quote:
Originally Posted by Grimm View Post
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
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.
__________________
. .. .. . .......
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..
  Reply With Quote
Old 12-09-2010, 01:55 AM   #4108 (permalink)
EcoModding Apprentice
 
Join Date: May 2009
Location: Australia
Posts: 109
Thanks: 0
Thanked 2 Times in 2 Posts
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.
  Reply With Quote
Old 12-09-2010, 06:22 PM   #4109 (permalink)
Computer/EV enthusiast
 
Join Date: Jan 2010
Location: Indiana, USA
Posts: 32
Thanks: 2
Thanked 7 Times in 5 Posts
Quote:
Originally Posted by mrbigh View Post
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.
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?
  Reply With Quote
Old 12-12-2010, 09:20 AM   #4110 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 304 Times in 171 Posts
Here's a quick video of a few tests on the new code from Fran with rpm monitoring:


__________________
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
  Reply With Quote
Reply  Post New Thread




Similar Threads
Thread Thread Starter Forum Replies Last Post
Paul and Sabrina's Cheap 3 Phase Inverter (AC Controller) with Field Oriented Control MPaulHolmes Fossil Fuel Free 3431 05-04-2022 06:43 PM
Paul & Sabrina's Cheap EV Conversion MPaulHolmes Fossil Fuel Free 542 11-12-2016 10:09 PM
Three Dirt Cheap DIY Electric Cars - Part 5 SVOboy EcoModder Blog Discussion 0 12-12-2008 05:10 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com