Search found 167 matches
- Thu Oct 05, 2006 9:21 am
- Forum: General Discussion
- Topic: Capacitor powered car to give 500 miles on 5 min charge
- Replies: 40
- Views: 17152
safety
I think this whole idea is bogus due to the conservation of energy laws and the math already demonstrated in other posts, but safety keeps coming up, so I'm putting my 2 cents in. Gasoline has a flash point of -45 degrees F, and the fumes are explosive under certain conditions. If we can design a ca...
- Sun Sep 17, 2006 7:50 pm
- Forum: General Discussion
- Topic: I'm bored :-)
- Replies: 17
- Views: 8037
- Mon Sep 11, 2006 2:55 pm
- Forum: General Discussion
- Topic: NiMH batteries
- Replies: 7
- Views: 3709
NiMH batteries
Anyone out there with battery expertise have thoughts on making your own NiMH batteries? I'm talking about large units for EV propulsion. Is this totally impratical, dangerous etc. ? To power an EV, I understand that a battery pack would cost $30,000.00. I have a lot of space and a fairly sophistica...
- Fri Sep 01, 2006 7:12 pm
- Forum: General Discussion
- Topic: microcontroller - which to pick?
- Replies: 3
- Views: 2508
microcontroller - which to pick?
I am interested in learning about and using microcontrollers in my electronics hobby. I am sure that there is no one "best", of course, but since it will take considerable time and money to learn how to program and use each chip, I'd like some help on which chip to start with, Basic stamp,...
- Thu Aug 24, 2006 2:40 pm
- Forum: General Discussion
- Topic: ANOTHER electric car -- BUT ......
- Replies: 24
- Views: 11477
The neighborhood car may work for some people, But I would still need to get on a 60 MPH highway for about 15 miles each way, so it wouldn't work for me. I believe the electric car for now will remain a mission intensive vehicle, but if we all had em, especially with some type of solar charging sche...
- Thu Aug 24, 2006 7:04 am
- Forum: General Discussion
- Topic: ANOTHER electric car -- BUT ......
- Replies: 24
- Views: 11477
- Wed Aug 23, 2006 7:48 am
- Forum: General Discussion
- Topic: electric car
- Replies: 5
- Views: 2961
electric car
thanks smoke, that was a really helpful site!
- Tue Aug 22, 2006 7:07 am
- Forum: General Discussion
- Topic: electric car
- Replies: 5
- Views: 2961
electric car
I have recently seen on ebay a good deal on a Seimens traction motor that Ford used for it's now discontinued line of electric vehicles, unfortunately, it is just the motor. I've looked at the Seimens site and at the Ballard design site, but I can't seem to find out where I can purchase the electron...
- Wed Aug 16, 2006 6:21 am
- Forum: General Discussion
- Topic: monitoring a solar panel
- Replies: 4
- Views: 2583
- Tue Aug 15, 2006 2:14 pm
- Forum: General Discussion
- Topic: monitoring a solar panel
- Replies: 4
- Views: 2583
monitoring a solar panel
I want to monitor the output of a 12 volt solar panel with some type of in line volt/ammeter, powered by either it's own supply or possibly from the solar panel itself. I am looking for a small circuit to build that I can leave in place, so expensive VMM's are out. Input on what the best solution wo...
- Tue Aug 08, 2006 9:26 am
- Forum: General Discussion
- Topic: 90vdc pwm controller
- Replies: 31
- Views: 19427
90 volt dc pwm
There was a good article in home shop machinist, May/June 1996 issue on a shop built controller by a man named Charles Eyer. I have a copy and eventually will scan the darn thing. I can send you a copy if you would like.
- Tue Aug 08, 2006 9:15 am
- Forum: General Discussion
- Topic: Electric Cars
- Replies: 54
- Views: 29764
ev
Thanks a lot for your post smokemaker, especially the link, and welcome to this forum. After looking at some of the conversions, I realized I drive less than 40 miles per day and so the idea fits and I am thinking of converting a small pick up truck myself and using a large solar panel to recharge a...
- Fri Jul 28, 2006 9:37 am
- Forum: General Discussion
- Topic: Sound generator/insect research.
- Replies: 8
- Views: 3526
Sound generator/insect research.
I'm doing some research with insects specifically involving the effects of certain frequencies on their behavior. I would like to make a circuit that I can adjust the frequency of sound from very low frequency to very high frequency ultrasound. Can anyone help with circuits or equipment recomendatio...
- Mon Jun 05, 2006 9:20 am
- Forum: General Discussion
- Topic: USB DEVICE CONTROL in NUT&VOLTS by A.Enzmann
- Replies: 33
- Views: 18793
- Thu May 25, 2006 2:16 pm
- Forum: General Discussion
- Topic: plastic injection molding
- Replies: 7
- Views: 5151
plastic injection molding
I'm thinking about making a home brew small scale platic injection molding machine to make small custom plastic parts. The schemes I've seen involve a heating element, copression ram and injector nozzle for the mold. Anyone have any good circuits to controll the temperature for a nichrome wire eleme...