Search found 2625 matches

by arkmundi
Nov 09 2018 9:19pm
Forum: General Discussion
Topic: Changes in the Endless Sphere Community
Replies: 16
Views: 1429

Re: Changes in the Endless Sphere Community

... Batteries seem stagnant to me now, as the currently popular cells showed up so much lighter and smaller than others. Seems to me after my fire though, the chemistry needs work. But nothing better has appeared in the last few years, while back in 2008-2012 or so, it seemed like a new source or a...
by arkmundi
Mar 01 2018 12:47pm
Forum: General Discussion
Topic: which MAC clutch is better?
Replies: 14
Views: 1565

Re: which MAC clutch is better?

Thanks for the pictures. I'm in process of replacing the clutch and found my new & old clutch identical to the pictures. Not such much a question of "best", but does the new work in an identical manner. Which I'll soon discover. .... it's the clutch itself. there are little metal parts inside that a...
by arkmundi
Sep 10 2017 12:41am
Forum: E-Vehicles General Discussion
Topic: The 2017 EV's
Replies: 73
Views: 11821

Re: The 2017 EV's

As we come to close of 2017 and the fall gives rise to 2018 models, though I'd chime in who I feel deserves the EV car of the year award: its the Tesla Model 3. Its nearly guaranteed to become the first A-EV the world will see - that's Autonomous Electric Vehicle. To understand the reason why, watch...
by arkmundi
May 25 2017 7:44am
Forum: EV Business World
Topic: OSVehicle
Replies: 5
Views: 1814

Re: OSVehicle

The mass production and sell-for-profit automotive industry is indeed a business. But the visionaries behind OSVehicle saw something else, of lots and lots of people forging something together in the spirit of open-source and in the modus of the internet of things, 3D printing and so forth. As such ...
by arkmundi
Feb 16 2017 11:03am
Forum: General Discussion
Topic: Great TV Shows!
Replies: 170
Views: 19662

Re: Great TV Shows!

Ya' gotta love it - the Mormons have a "cathedral ship" in the the belt... The Expanse...
MormonShip.png
by arkmundi
Feb 02 2017 7:44pm
Forum: General Discussion
Topic: Google's Robots
Replies: 33
Views: 4969

Re: Google's Robots

Astounding! Like a Segway on steroids. Wonder where all of this is going.
by arkmundi
Feb 02 2017 5:55pm
Forum: Battery Technology
Topic: new NOVA special called “Search for the Superbattery.”
Replies: 13
Views: 1102

Re: new NOVA special called “Search for the Superbattery.”

Reclaim from https://thepiratebay.org/torrent/17002723/PBS_Nova_Search_for_the_Super_Battery_720p_x264_AAC_HDTV_MVGroup Don't think you'll miss much by missing. While its OK Nova material, there really was not anything revolutionary, e.g., "supper-battery" related. More of an intro for a large viewi...
by arkmundi
Feb 02 2017 5:53pm
Forum: General Discussion
Topic: Great TV Shows!
Replies: 170
Views: 19662

Re: Great TV Shows!

After watching last night, had to raise The Expanse up in my Best TV Shows of 2017 listing. Really blown away by the quality of the CGI and plausible story line of space in near future solar system dominated by outposts and mining. The two episode show saw war between Earth and Mars averted, barely.
by arkmundi
Feb 02 2017 4:50pm
Forum: Battery Technology
Topic: new NOVA special called “Search for the Superbattery.”
Replies: 13
Views: 1102

Re: new NOVA special called “Search for the Superbattery.”

https://thinkprogress.org/chart-of-the-month-driven-by-tesla-battery-prices-cut-in-half-since-2014-718752a30a42#.xztog2rqh https://cdn-images-1.medium.com/max/960/0*QOGBJA_SoAATR_8e.jpg Battery prices are coming down at the same time that quality is going up, thanks to the Tesla Gigawatt factory, n...
by arkmundi
Jan 26 2017 11:03pm
Forum: E-Bike General Discussion
Topic: Illegal #EBikes
Replies: 119
Views: 12030

Re: Illegal #EBikes

....Off topic, imo, big oil heads already have (or are on their way to have) EV's in their garages to flood market with as soon as this planet gets fed up with oil. Not off topic at all. Matter of fact, it is the topic for a lot of us on the forum building and riding our eBikes or other EVs. Hope t...
by arkmundi
Jan 26 2017 1:46pm
Forum: General Discussion
Topic: Elon Musk: Fossil fuel industry
Replies: 8
Views: 868

Re: Elon Musk: Fossil fuel industry, and Trump

A Brief Chat With Elon Musk About Climate Change, Rex Tillerson, and Donald Trump My tweets speak for themselves. Please read them exactly as they are written. Tillerson obviously did a competent job running Exxon, one of the largest companies in the world. In that role, he was obligated to advance...
by arkmundi
Jan 09 2017 2:53pm
Forum: E-Vehicles General Discussion
Topic: The 2017 EV's
Replies: 73
Views: 11821

Re: The 2017 EV's

Chevrolet Bolt EV is the 2017 Motor Trend Car of the Year http://www.motortrend.com/news/chevrolet-bolt-ev-2017-car-of-the-year/?google_editors_picks=true The 60-kW-hr battery pack, co-developed with and assembled by LG Chem, holds more than triple the energy of the pack in the Chevy Spark EV—but we...
by arkmundi
Jan 09 2017 1:16pm
Forum: Battery Technology
Topic: Sunthing-28 Lithium Ion Reviews?
Replies: 13
Views: 1095

Re: Sunthing-28 Lithium Ion Reviews?

How does return shipping work? People have been unable to return if they declare their package a battery. Mention the idea of return for repair and all bets are off with UPS. Some resellers do all they can to avoid shipping returns and repairs...... I went through my own hell with this, which I've ...
by arkmundi
Jan 09 2017 1:07pm
Forum: E-Bike General Discussion
Topic: Illegal #EBikes
Replies: 119
Views: 12030

Re: Illegal #EBikes

Isn’t that nuts? It was stolen from private property, how is it illegal on private property? This place, makes my blood boil… Ditto that! Revolutions take time. FYI, its complaints by drivers stuck in traffic seeing these eBikes zip by and are irked. But also the delivery guy ignore a lot of the tr...
by arkmundi
Jan 09 2017 3:14am
Forum: Large EV General Discussion
Topic: Volkswagen camper electric
Replies: 14
Views: 3008

Re: Volkswagen camper electric

http://money.cnn.com/2017/01/08/technol ... z-concept/ ... maybe by 2020 ... all electric, all-wheel drive, fully autonomous driving
Image
by arkmundi
Jan 08 2017 7:45pm
Forum: E-Bike Reviews & Testing
Topic: Top 10 eBike Conversion Kits & Where to Buy
Replies: 62
Views: 58263

Re: Top 10 eBike Conversion Kits & Where to Buy

Just clicked through to this thread from your signature line. Amazon has similar kits by AW, which were out of stock over Christmas but just came back online. Aosom's pricing is all over the shop - the same kit with an LCD is $449, whereas AW has it back again with a couple of extra accessories for...
by arkmundi
Jan 08 2017 6:50pm
Forum: General Discussion
Topic: A small hitch ball ?
Replies: 13
Views: 6561

Re: A small hitch ball ?

TopCat wrote:Hi,
I use these type of ball hitch/joint on my trailers... http://www.amazon.com/Alcoa-GAS-32-Spri ... B002P4ON5C... Hope this helps. Regards Tom
Thanks for the tip. FYI, in 2017 I found this still available on Amazon for $6.76 + $9.39 shipping - a bargain. :mrgreen:
by arkmundi
Jan 08 2017 6:26pm
Forum: E-Bike Technical
Topic: AW kit from Amazon
Replies: 157
Views: 9478

Re: AW kit from Amazon

I believe eBike batteries are better made with cells intended for the automotive market, that have higher safety and anti-fire-and-explode characteristics. Lipo, as you note is for light-weight, like RC and are very definitely not explode proof - lots of threads on the forum about fires and houses b...
by arkmundi
Jan 07 2017 7:24am
Forum: General Discussion
Topic: Graphene
Replies: 126
Views: 17558

Re: Graphene

Porous, 3D Graphene: MIT Scientists Make ‘One Of The Strongest, Lightest Materials Known’ In an announcement Friday, researchers from the Massachusetts Institute of Technology (MIT) said they had “designed one of the strongest lightweight materials known, by compressing and fusing flakes of graphen...
by arkmundi
Jan 07 2017 3:04am
Forum: Battery Technology
Topic: Sunthing-28 Lithium Ion Reviews?
Replies: 13
Views: 1095

Re: Sunthing-28 Lithium Ion Reviews?

You have a " MAC 350w front hub motor and 25A controller and are looking at a battery as follows. 350 watts/48V is 8 amps. So yes, it would work ... as the " Maximum continuous discharge current: is15A . But ... " cycle 500 times " is awful, and " Li-ion" is non-specific - we don't know what the che...
by arkmundi
Jan 07 2017 1:30am
Forum: E-Bike General Discussion
Topic: My 48 v 1000 watt ebike kit isnt working!
Replies: 60
Views: 4058

Re: My 48 v 1000 watt ebike kit isnt working!

Well we'll see what happens... What do tight guys think about me running 100 volts and 16000 mah (or 16 amps same thing) to my current motor. My current motor never failed me. Its a 1000 watt motor. You need amps to run a motor and for amps to be maintained continuously, you need volts. Yes, watts ...
by arkmundi
Jan 06 2017 10:32pm
Forum: E-Bike Technical
Topic: How important is it for bearings to be easily turned?
Replies: 4
Views: 506

Re: How important is it for bearings to be easily turned?

The only thing to worry about is the bearings being greased and sealed. The seals are held down by a nut or cap, which can be loosened or tightened - too loose and its not sealed, so will leak grease - too tight and the bearings won't slip. There is a "just right".
by arkmundi
Jan 06 2017 9:04pm
Forum: E-Bike General Discussion
Topic: My 48 v 1000 watt ebike kit isnt working!
Replies: 60
Views: 4058

Re: My 48 v 1000 watt ebike kit isnt working!

So you're telling me they all have to be the same but another person provided a link to a different type of fet? mosfets are like capacitors, only controlled by a magnetic field for they're firing, so digitally controlled. The motors are three phase. So its why controllers have a number of mosfets ...
by arkmundi
Jan 06 2017 7:16pm
Forum: E-Bike General Discussion
Topic: first time buyer
Replies: 23
Views: 1913

Re: first time buyer

See below link to list of some good kits. This list was by a newb after extensive research on this forum and elsewhere, considering a lot of options before making my purchase, for second eBike build. Good luck!
by arkmundi
Jan 06 2017 6:54pm
Forum: E-Bike General Discussion
Topic: My 48 v 1000 watt ebike kit isnt working!
Replies: 60
Views: 4058

Re: My 48 v 1000 watt ebike kit isnt working!

Unfortunately I can't get a warranty because this was bought last year. ... from ebay and they don't seem to want to offer help.... I do want to replace a mosfet. Can anyone help me with the first step I should take? I think I need to identify which mosfet it is first?? ??? But how?? Then determine...