Search found 1331 matches

by Warren
Nov 19 2019 4:51pm
Forum: Motor Technology
Topic: aluminum windings
Replies: 3
Views: 346

aluminum windings

To show this in a direct comparison, the Fraunhofer team used 250W commercial pedelec motors.

https://www.greencarcongress.com/2019/1 ... -ifam.html
by Warren
Oct 27 2019 9:48am
Forum: Large EV General Discussion
Topic: Chevy Bolt first drive
Replies: 152
Views: 21833

Bolt to Vanagon transplant

I figured folks on this forum would enjoy this guy's conversion. Check out all the photos. He has just,about completed his epic trip.

https://www.thesamba.com/vw/forum/viewt ... sc&start=0
by Warren
Oct 27 2019 9:44am
Forum: Large EV General Discussion
Topic: Chevy Bolt first drive
Replies: 152
Views: 21833

1153 mi round trip...central Virginia to Rochester and Ithaca NY

The first week of October looked good for our first trip to New York in the Bolt. Left at 8:15 am, and arrived home at 9:45 pm, a week later. The non-Tesla DC charging infrastructure is still a joke, but at least now the trip is doable, with luck. We drove Rt 15 mostly...no interstates. 1153.3 miles...
by Warren
Oct 25 2019 8:52am
Forum: E-Bike General Discussion
Topic: Thoughts on cargo bikes
Replies: 40
Views: 1763

Re: Thoughts on cargo bikes

The rear disc is 200 mm. The motor has no problem climbing with my 160 pounds clothed, and luggage...never gets warm. The warmest times are summer riding in hilly Charlottesville. In traffic, wacky the throttle can see 29xx watts, and regening to 19xx watts. Inefficient controller makes more regen h...
by Warren
Oct 24 2019 10:29pm
Forum: EV Business World
Topic: No future for charging networks ?
Replies: 28
Views: 1763

Re: No future for charging networks ?

We just did an 1153 mile round trip to New York in the Bolt...Rochester, and Ithaca. We took two days up, and one back. The two days up was pleasant. We only did the one day back because we knew we would be sleeping in our own bed. Doing that in one day is my idea of torture. So, 575 miles one way ...
by Warren
Oct 24 2019 9:57pm
Forum: E-Bike General Discussion
Topic: Thoughts on cargo bikes
Replies: 40
Views: 1763

Re: Thoughts on cargo bikes

If you could redo your DD recumbent build, would you use leaf batteries again? After three and a half years this pack has gone from 2897 Wh on the first full discharge, to 2288 Wh today. Leaf cells are notorious for degradation. If money was no object, I'd go with two EM3ev 72 volt, 34 Ah packs in ...
by Warren
Oct 23 2019 9:17pm
Forum: E-Bike General Discussion
Topic: Thoughts on cargo bikes
Replies: 40
Views: 1763

Re: Thoughts on cargo bikes

Recumbants sound very nice. I am nervous about using them in MA city traffic though. Do cars have trouble seeing riders so low to the ground? My recumbent cargo bike is not low to the ground. Look at that picture again. When I ride along side of folks on uprights, my eyes are higher than theirs. In...
by Warren
Oct 23 2019 4:11pm
Forum: EV Business World
Topic: No future for charging networks ?
Replies: 28
Views: 1763

Re: No future for charging networks ?

When I travel from here to Florida I can get in my car in the morning and drive the 1050 miles straight through in about 14 hours, including 2 fuel stops. With a Tesla that would simply be impossible. You'd need at least 4 extra hours to charge which pretty much means another day. To me that is imp...
by Warren
Oct 23 2019 3:49pm
Forum: E-Bike General Discussion
Topic: Thoughts on cargo bikes
Replies: 40
Views: 1763

Re: Thoughts on cargo bikes

I'm the old fart with the recumbent cargo bike. 70 miles is just a warm-up ride. For the first decade, it hauled me, a 150 pound wife, and 50 pounds of luggage just fine. That was strictly human power that had us pedaling a 22/34...16 gear inch at 90 rpm and 4 mph up mountains. I wouldn't suggest a ...
by Warren
Sep 25 2019 10:53am
Forum: E-Bike General Discussion
Topic: My recumbent cargo bike
Replies: 137
Views: 18418

Re: My recumbent cargo bike

On the 15th, I attended a clean energy event, at the Pavilion, on the walking mall in Charlottesville. I have gone to several of these each of the last two years in the Bolt. But this is the first one that I figured I could ride to, spend 3-4 hours talking EVs, and still ride home before dark. I jus...
by Warren
Sep 01 2019 9:25am
Forum: Motor Technology
Topic: 120v mower and battery
Replies: 8
Views: 453

Re: 120v mower and battery

Yeah. Not the right location for this. But it is interesting that a few years ago knowledgeable folks on here said that 80 volt was the limit for consumer power transistors.
by Warren
Aug 31 2019 10:05am
Forum: E-Bike General Discussion
Topic: My recumbent cargo bike
Replies: 137
Views: 18418

Re: My recumbent cargo bike

The hottest days are behind us for another year. Been pretty nice the last few weeks. Highs in the 80s F, lows in the 60s F. Haven't determined which specific hall wire it broken, in the external cable. https://endless-sphere.com/forums/viewtopic.php?f=2&t=101023 But it messes up infrequently enough...
by Warren
Aug 21 2019 10:00pm
Forum: E-Bike Build Threads / Photos & Video
Topic: High performance & durability Cannondale Semi Recumbent
Replies: 273
Views: 16323

Re: High performance & durability Cannondale Semi Recumbent

For those of you who are new to recumbents, I used to have a collection of recumbent magazines, which I donated to college engineering school. I just found a few issues of one of them online....Encycleopedia. https://issuu.com/search?q=Encycleopedia The same folks produced one called Bike Culture Qu...
by Warren
Aug 21 2019 9:33pm
Forum: E-Bike Build Threads / Photos & Video
Topic: High performance & durability Cannondale Semi Recumbent
Replies: 273
Views: 16323

Re: High performance & durability Cannondale Semi Recumbent

The way to have a 2 ( or even 3 wheel recumbent ) is to make the frame on both sides of you , where you sit down inside the frame for lower center of gravity , the ability to use larger wheels , and to have a more upright sitting position while still aerodynamic http://rohorn.blogspot.com/2006/11/m...
by Warren
Aug 21 2019 1:28pm
Forum: General Discussion
Topic: Go Cedric!
Replies: 14
Views: 785

Re: Go Cedric!

www.recumbents.com wrote:
Aug 21 2019 11:38am
Wow, that vehicle was built in 1991??!!
The blog poster got it wrong. Cedric said it was built in 1995.

http://www.bikeweb.com/node/3254
by Warren
Aug 21 2019 11:33am
Forum: General Discussion
Topic: Go Cedric!
Replies: 14
Views: 785

Re: Go Cedric!

neptronix wrote:
Aug 20 2019 8:33pm
I'm quite amazed that you can modify a motorcycle that much and get away with it in the UK. Hats off!
It isn't modified. It is a complete scratch built bike.

http://www.bikeweb.com/node/3311

http://www.bikeweb.com/image/tid/57
by Warren
Aug 19 2019 8:29pm
Forum: General Discussion
Topic: Go Cedric!
Replies: 14
Views: 785

Re: Go Cedric!

He is still my hero. At least in the UK they didn't shoot him.
by Warren
Aug 09 2019 12:34pm
Forum: E-Bike General Discussion
Topic: Has anyone electrified a RowBike?
Replies: 11
Views: 326

Re: Has anyone electrified a RowBike?

Not that I'm seriously considering it or anything, but a RowBike came up for sale locally and the mental imagery of one of these things traveling at highway speeds brought a smile to my face. http://ursispaltenstein.ch/blog/images/uploads_img/rowbike.gif http://i.imgur.com/JF5e4Ms.gif Anyone here a...
by Warren
Aug 09 2019 12:28pm
Forum: EV Business World
Topic: Tesla Model 3
Replies: 1144
Views: 78868

Re: Tesla Model 3

Yeah. I will bet on the 12 volt battery. I can sympathize with Matt. Having seen one dash warning on our Bolt about caused a coronary, and it was still under warranty. As for building a DIY, 200 mile range car...there have been two that I know of. The best, and oldest, is the Illuminati Seven. It co...
by Warren
Jul 21 2019 10:27am
Forum: E-Bike Technical
Topic: Halls effect sensors...the plague from hell
Replies: 29
Views: 1416

Re: Halls effect sensors...the plague from hell

Yesterday was my first ride, of any length, since getting back from a Seattle area trip (It was impossible to avoid having a Prius in your field of vision, and more electric bikes and cars than I have seen in my whole life.) Before heading out, I pulled the velcroed elastic sleeve off the chainstay....
by Warren
Jul 21 2019 9:57am
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 265
Views: 49284

Re: Warren's 350 MAC mid-drive (finally) recumbent

oldwahoo54 wrote:
Jul 20 2019 9:42am
BTW, you're a legend in the bike shops around here.
Big Foot and I are best buds. :-)
by Warren
Jul 21 2019 9:52am
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 265
Views: 49284

Re: Warren's 350 MAC mid-drive (finally) recumbent

oldwahoo54 wrote:
Jul 20 2019 9:41am
Which Shimano hub did you get 30K+ miles on?
It was a NOS, 1990's, Japanese made, Deore XT, Parallax.