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by liveforphysics
Nov 01 2018 4:06am
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 18261

Re: Farfles Electric Ultralight.

So excited for your DIY airplane flying so well my friend!! You are so amazing Jackson!!!
by liveforphysics
Oct 31 2018 3:56am
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 18261

Re: Farfles Electric Ultralight.

So proud of you brother!!!
:bolt: :mrgreen: 8) :D
by liveforphysics
Oct 14 2018 3:33pm
Forum: E-Bike General Discussion
Topic: Lines erased E-Bike / E-Scooter / E Motorcycle
Replies: 163
Views: 4461

Re: Lines erased E-Bike / E-Scooter / E Motorcycle

Everytime a car passes you, it's a dice roll on whether they are texting and only notice you from the BUMP BUMP as they go under the tires. If cars don't pass you, or pass you less, your number of car death dice rolls reduces drastically. No prizes awarded for getting slaughtered by cars by riding s...
by liveforphysics
Oct 12 2018 4:20am
Forum: E-Bike General Discussion
Topic: Lines erased E-Bike / E-Scooter / E Motorcycle
Replies: 163
Views: 4461

Re: Lines erased E-Bike / E-Scooter / E Motorcycle

Over 110mph some ebikes feel squirrely, some don't. The idea of the human constructed need to fit into someone's else's human constructed bounds is what fades away. My level of power to feel comfortable on an ebike in traffic is 5-15kW, more always offering the ability for improving safety. Around 5...
by liveforphysics
Oct 08 2018 9:02pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Prototype EV for race
Replies: 31
Views: 2698

Re: Prototype EV for race

Congratulations buddy!!! Winning!
by liveforphysics
Oct 08 2018 3:21am
Forum: Motor Technology
Topic: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15
Replies: 528
Views: 64922

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Beautiful to see another monster come to life. :-)
by liveforphysics
Oct 03 2018 4:31pm
Forum: EV Business World
Topic: Tesla Model 3
Replies: 625
Views: 38071

Re: Tesla Model 3

Burning carcinogenic mutagens and spraying them in unburned form and the resulting millions of deaths will still seem like a fools bargain with no excuses even at 300mpg to the unconsenting people around you dosed with toxic vapors everytime your range extender starts with a cold catalyst surface. T...
by liveforphysics
Oct 03 2018 3:29pm
Forum: EV Business World
Topic: Tesla Model 3
Replies: 625
Views: 38071

Re: Tesla Model 3

Mastery of systems in the ICE vehicle to vehicle makers will be as useful as mastery of record player design or VCR design or CRT display design. You could be the best in the world at it and won't be worth a cup of coffee. Disagree. The people who "mastered" music player design (like record players...
by liveforphysics
Oct 03 2018 1:21pm
Forum: EV Business World
Topic: Tesla Model 3
Replies: 625
Views: 38071

Re: Tesla Model 3

Tesla can already make volume of EVs. Automakers that show signs of concern would be: Porsche, the mission E was supposed to go to mfg in 2016, then 2017, then 2018, then 2019, and now 2020. Ironically by 2020 the new Tesla Roadster makes it seem pathetic. VW has only made compliance cars using gas ...
by liveforphysics
Sep 30 2018 4:31pm
Forum: Battery Technology
Topic: DIY Super Capacitors, and Robert Murray-Smith
Replies: 22
Views: 1715

Re: DIY Super Capacitors, and Robert Murray-Smith

Everything he uses an aqueous not de-ionized electrolyte in is a scam, as it would self discharge and gas out in minutes to hours if it were "charged."
by liveforphysics
Sep 30 2018 3:56pm
Forum: E-Bike Technical
Topic: No lag, instant response controller recommendations
Replies: 5
Views: 347

Re: No lag, instant response controller recommendations

ASI BAC8000 tuned right is as fast of response and as violent of a hit as you setup the phase current slew rates to be.
by liveforphysics
Sep 30 2018 3:13pm
Forum: Battery Technology
Topic: PSA: dont underspec your strips
Replies: 26
Views: 1396

Re: PSA: dont underspec your strips

Nope, still need strain prevention somehow, deeper welds just tear the nugget right out of the can, if they don't already cause pinhole failures just from welding. Spot welds are how to fail at making a battery. the slit helps if you have a cheap low power welder. if you have something more meaty th...
by liveforphysics
Sep 30 2018 12:31am
Forum: E-vents
Topic: Interbike 2018, Reno-Tahoe, Sept 14-20
Replies: 130
Views: 4588

Re: Interbike 2018, Reno-Tahoe, Sept 14-20

"...but I slept in my van..." Now you're making me jealous. I remember one time I was sleeping on the beach in Australia, good times... As far as writing the article, I am currently handcuffed to a bed in Alabama, will be home in Kansas soon. How am I typing this?...only my hands are handcuffed. I ...
by liveforphysics
Sep 29 2018 3:43am
Forum: Battery Technology
Topic: Thread for new battery breakthrough PR releases
Replies: 1568
Views: 159154

Re: Thread for new battery breakthrough PR releases

The difference between them, is the cell with 245Wh/kg in 2011 delivers 1-2C discharge with lots of sag and only achieves it's 245Wh/kg at <~0.3C. The 32Ah Farasis cell achieves 12C peak 5C continous and doesn't take a meaningful energy density impact from being used at EV representative C rates. So...
by liveforphysics
Sep 26 2018 5:15pm
Forum: Items for Sale - New
Topic: Accelerated Systems ASI BAC 4000 & BAC 8000 FOC BT Controllers
Replies: 62
Views: 3756

Re: Accelerated Systems ASI BAC 4000 & BAC 8000 FOC BT Controllers

I've already seen 750amps battery amps at 60Vdc with an ASI BAC8000, that's 45kW. In an application with minimal battery sag over 55kW should be possible. This is assuming it doesn't have software limits hindering it. My ASI BAC8000's have firmware with a 730amp phase current max setting, but you ca...
by liveforphysics
Sep 26 2018 3:59pm
Forum: Battery Technology
Topic: preheating lithium battery for less voltage sag - maximum temperature
Replies: 4
Views: 276

Re: preheating lithium battery for less voltage sag - maximum temperature

40-45degC for racing is generally about ideal. Leaves you with a little headroom to climb from discharge heating.
by liveforphysics
Sep 26 2018 12:53am
Forum: E-vents
Topic: Interbike 2018, Reno-Tahoe, Sept 14-20
Replies: 130
Views: 4588

Re: Interbike 2018, Reno-Tahoe, Sept 14-20

If I do the show next year (I generally try to if I have time), I'm going to do all the days of outdoor riding demo, and then one day inside at the show. Vegas indoor track was fun, but nothing beats riding a ski resort.
by liveforphysics
Sep 25 2018 11:53pm
Forum: Items for Sale - New
Topic: Accelerated Systems ASI BAC 4000 & BAC 8000 FOC BT Controllers
Replies: 62
Views: 3756

Re: Accelerated Systems ASI BAC 4000 & BAC 8000 FOC BT Controllers

This is copy and paste from this link from ASI's site: http://accelerated-systems.com/products/ http://accelerated-systems.com/wp-content/uploads/2018/07/ASI_HIGHPOWERcontroller_JUNE2018.pdf Pasted from the .pdf text: INPUT (ALL CONTROLLERS) FEATURE RATING Nominal Input Voltage 36-72 Volts Input Pow...
by liveforphysics
Sep 24 2018 8:18pm
Forum: E-Bike Non-hub Motor Drives
Topic: Paradox Kinetics Hermes
Replies: 12
Views: 657

Re: Paradox Kinetics Hermes

Unique conversion! Thanks for sharing the great job you did building it!
by liveforphysics
Sep 23 2018 9:17pm
Forum: E-vents
Topic: Interbike 2018, Reno-Tahoe, Sept 14-20
Replies: 130
Views: 4588

Re: Interbike 2018, Reno-Tahoe, Sept 14-20

When even Shimano has an electric bike in the display centerpiece of their booth, and it's a sick carbon downhill ebike running flagship parts, you know ebikes have won. :-)
by liveforphysics
Sep 22 2018 3:17pm
Forum: E-vents
Topic: Interbike 2018, Reno-Tahoe, Sept 14-20
Replies: 130
Views: 4588

Re: Interbike 2018, Reno-Tahoe, Sept 14-20

vid 3



vid 4




vid 5




vid 7

by liveforphysics
Sep 22 2018 2:50pm
Forum: E-vents
Topic: Interbike 2018, Reno-Tahoe, Sept 14-20
Replies: 130
Views: 4588

Re: Interbike 2018, Reno-Tahoe, Sept 14-20

The Brose drive actually looked impressive inside, one of the videos I play around with a cut-away Brose drive and I like how few of reduction stages it has before the final drive.

Here's video #2 from the show.

by liveforphysics
Sep 22 2018 5:04am
Forum: E-vents
Topic: Interbike 2018, Reno-Tahoe, Sept 14-20
Replies: 130
Views: 4588

Re: Interbike 2018, Reno-Tahoe, Sept 14-20

Hf4p1mOToZA More uploading... Moderator edit: for those who watched the video at 23:20, here are the different clutches described. The Brose motor uses a "sprag" clutch, shown here on the left. It is more expensive, but it is also smoother, quieter, and stronger than the others. "I'm just a bicycle...
by liveforphysics
Sep 21 2018 11:45pm
Forum: E-vents
Topic: Interbike 2018, Reno-Tahoe, Sept 14-20
Replies: 130
Views: 4588

Re: Interbike 2018, Reno-Tahoe, Sept 14-20

The show is already maybe 70-75% ebikes. I had an amazing time and ran into many ES folks!

I will try to upload some vids now that Im back in the land of fast data.
by liveforphysics
Sep 20 2018 10:48pm
Forum: General Discussion
Topic: Mile A Minute Club - On a Pedal Only Bicycle
Replies: 4
Views: 405

Re: Mile A Minute Club - On a Pedal Only Bicycle

I bet tough road bike tires handle the speed fine for at least a few miles.

Kudos to her, that's a totally reasonable pace to achieve on a pedal bike.