Search found 602 matches

by ZeroEm
Feb 09 2021 9:44am
Forum: Motor Technology
Topic: Leaf / leafmotor / leafbike high efficiency 1500w motor
Replies: 1921
Views: 249782

Re: Leaf / leafmotor / leafbike high efficiency 1500w motor

by amberwolf » Feb 09 2021 12:38am If the axle nut came off during regen, then it was already very loose, ready to fall off. This usually means, assuming it was tightened enough to start with, that the axle is rocking back and forth in the dropouts, even just a tiny bit, which eventually works the ...
by ZeroEm
Jan 17 2021 7:00am
Forum: Motor Technology
Topic: Leaf / leafmotor / leafbike high efficiency 1500w motor
Replies: 1921
Views: 249782

Re: Leaf / leafmotor / leafbike high efficiency 1500w motor

Going out on a limb here. All are FOC that I have looked at . Phaserunner is from the ASI 800, that should cover a lot if not most E-bikes. Only reason for me wanting ASI 2000 is not running to the limits of the controller. At the moment with my single batter limited to 36 amps (not peak) as not to ...
by ZeroEm
Jan 16 2021 6:23am
Forum: EBike General Discussion
Topic: Gadgets on your eBike that you couldn't live without
Replies: 58
Views: 3844

Re: Gadgets on your eBike that you couldn't live without

by TDB » Jan 16 2021 2:39am Super bright blinkies front and back. Even then I don't trust drivers to give me room and I keep a close eye on them. https://www.moonsportusa.com/product-page/sirius-pro https://www.cateye.com/intl/products/he ... -EL1100RC/ I am in the market for a headlight wired to m...
by ZeroEm
Jan 16 2021 4:51am
Forum: Motor Technology
Topic: Leaf / leafmotor / leafbike high efficiency 1500w motor
Replies: 1921
Views: 249782

Re: Leaf / leafmotor / leafbike high efficiency 1500w motor

by john61ct » Jan 16 2021 1:22am I've read phase current max is 90A? Admittedly I've kept my focus more on low speed torque rather than acceleration over say 20mph so believe I need the higher amp versions of the ASI units that the PhaseRunner is based on. Lately the ASI 2000 has been looking good ...
by ZeroEm
Jan 10 2021 11:49am
Forum: General Discussion
Topic: E.S. Quotable Quotes !
Replies: 870
Views: 175537

Re: E.S. Quotable Quotes !

by APL » Jan 09 2021 7:26pm
Coleasterlings titanium stator plate has to be classified as true motor-porn. 8)
by ZeroEm
Jan 07 2021 10:40am
Forum: Motor Technology
Topic: Leaf / leafmotor / leafbike high efficiency 1500w motor
Replies: 1921
Views: 249782

Re: Leaf / leafmotor / leafbike high efficiency 1500w motor

Did some thinking on my setup. On the gear/cassette side have one washer between the jam nut and drop out/frame. Then added a shim to move the cassette away from the frame so chain would not rub, the shim's diameter had to be reduced enought so the chain would not ride on it. Did this by hand trial ...
by ZeroEm
Jan 05 2021 6:25am
Forum: Motor Technology
Topic: Leaf / leafmotor / leafbike high efficiency 1500w motor
Replies: 1921
Views: 249782

Re: Leaf / leafmotor / leafbike high efficiency 1500w motor

by goatman » Jan 05 2021 2:08am this nut, i put washers behind it so the nut just sticks out past the lockring. then the nut is what touches the inside of the rear drop out My current setup has a 7 speed just as yours "The Toecutter" 5 rings together and two free. I made a washer to go be...
by ZeroEm
Dec 23 2020 7:25pm
Forum: Alternative Energy
Topic: solar water distillation
Replies: 32
Views: 782

Re: solar water distillation

If this is being done for a home look at water systems for them zero energy homes. They use plants, rocks, sand then thru filters and last a UV light.
by ZeroEm
Dec 23 2020 7:20pm
Forum: EBike General Discussion
Topic: Bimotal disc brake mount left hand drive
Replies: 11
Views: 325

Re: Bimotal disc brake mount left hand drive

Hardly anyone notices my leafmotor but it's quite. A boom box may help that one.
by ZeroEm
Dec 23 2020 5:32pm
Forum: EBike General Discussion
Topic: Bimotal disc brake mount left hand drive
Replies: 11
Views: 325

Re: Bimotal disc brake mount left hand drive

Is that stealth drive?
by ZeroEm
Dec 22 2020 6:15pm
Forum: Motor Technology
Topic: how do these simplest motors work?
Replies: 7
Views: 283

Re: how do these simplest motors work?

by Hummina Shadeeba » Dec 22 2020 6:01pm Neither of these motors has a switch or option to stop pressure on a pedal. If using a cycling analogy it seems to me more like u just pushed hard with one foot on a pedal and will be pushing that one foot till finally disconnect the battery. The battery and...
by ZeroEm
Dec 22 2020 4:40pm
Forum: Motor Technology
Topic: how do these simplest motors work?
Replies: 7
Views: 283

Re: how do these simplest motors work?

Think of peddling a bike, you don't push the peddle down and hold it there. Timing is used, you push close to dead center then let off and around we go.
by ZeroEm
Dec 21 2020 6:41pm
Forum: EBike General Discussion
Topic: What is the point of a 3T, 4T, 5T winding if torque per amp is the same?
Replies: 28
Views: 1097

Re: What is the point of a 3T, 4T, 5T winding if torque per amp is the same?

An acceleration spread sheet was posted in the last week in another thread, downloaded it, played with my trikes settings. Plugged in different windings and wheel sizes. Was quite surprised in the findings. Lower turn count and smaller wheel does not always equal more acceleration, top speed yes. Go...
by ZeroEm
Dec 21 2020 6:02pm
Forum: EBike Build Threads
Topic: HPV Streetmachine / Grin Build
Replies: 9
Views: 640

Re: HPV Streetmachine / Grin Build

Welcome the the World of recumbents. Have been looking at the seat and now see one on your bike. Glad to hear it is nice to ride in. May need to get me one. Have never seen steering of the like. Maybe have not been paying attention. Good to hear you are putting one of Grin's front motors on, look fo...
by ZeroEm
Dec 20 2020 4:31pm
Forum: Alternative Energy
Topic: solar water distillation
Replies: 32
Views: 782

Re: solar water distillation from rainwater

Water distillation is the best and most energy intensive. Personality would think of filters and UV light to get around the tablets first, would make more water. Interesting project none the less.
by ZeroEm
Dec 16 2020 4:27pm
Forum: E-Vehicles General Discussion
Topic: I made an electric wheelchair from a scooter
Replies: 26
Views: 1591

Re: I made an electric wheelchair from a scooter

pfcs49 » Dec 16 2020 1:51pm The "VOLVOS FROM HELL" decal was from my able-bodied days when I raced Volvos in ITB. Griff and I flat-towed our cars cross-country for 6 weeks in 1990 and camped everywhere, raced every weekend. Truly a transformational experience. In 95 I rode my 66 250 Mack ...
by ZeroEm
Dec 15 2020 5:55pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Has anyone gone faster? If yes than who and what was top speed?
Replies: 5
Views: 572

Re: Has anyone gone faster? If yes than who and what was top speed?

I was faster when younger, the older my brain gets the slower I go!
by ZeroEm
Dec 11 2020 7:40am
Forum: Electric Aircraft
Topic: Flying Caravan ??
Replies: 12
Views: 401

Re: Flying Caravan ??

Wow that is applying technology where it is needed. Guess it is common sense like EV's are best in cities not the outer roads.
by ZeroEm
Dec 11 2020 7:36am
Forum: General Discussion
Topic: Linux geeks thread
Replies: 28
Views: 1203

Re: Linux geeks thread

by MJSfoto1956 » Dec 10 2020 6:29pm
Only way to do that is to specify a shape that includes flash drives.
Question? about the language "Shape", is the terminology for an storage area, size?
by ZeroEm
Dec 10 2020 7:47am
Forum: EBike Technical
Topic: Two seats on a mountain bike
Replies: 9
Views: 340

Re: Two seats on a mountain bike

Trailer would be a good option, hook up when needed.
1899_Remorque_1.jpg
1899_Remorque_1.jpg (297.82 KiB) Viewed 255 times
or smaller
pro-pilot-tandem-bicycle-trailer-passenger-can.jpg
pro-pilot-tandem-bicycle-trailer-passenger-can.jpg (28.72 KiB) Viewed 255 times
by ZeroEm
Dec 09 2020 4:33pm
Forum: EV Business World
Topic: Investing in Li Batteries
Replies: 88
Views: 20678

Re: Investing in Li Batteries

The scenario-based analysis shows that cobalt is likely to become scarce and expensive, as the cobalt reserves identified today will not be sufficient for the presumed increase in demand. This is also supported by the fact that prices already increased by more than 120% in one year in 2016/17. In c...
by ZeroEm
Dec 09 2020 4:08pm
Forum: EV Business World
Topic: Investing in Li Batteries
Replies: 88
Views: 20678

Re: Investing in Li Batteries

Stainless target The current reality of nickel’s usage profile is that the amount of metal heading to the battery sector is still dwarfed by the tonnage used in making stainless steel. And the stainless-steel sector, which has been booming, looks potentially vulnerable to any tariff-induced slowdow...
by ZeroEm
Dec 09 2020 3:37pm
Forum: EV Business World
Topic: Investing in Li Batteries
Replies: 88
Views: 20678

Re: Investing in Li Batteries

by Harold in CR » Dec 06 2020 7:19am Real estate takes a chunk of money to invest in. I don't have that much, unless I sell what I have. If I do that, where would I live ? Son wants to buy in Alabama and live a simple lifestyle, self sufficient as possible. I'm too old to start over ! Real estate n...
by ZeroEm
Dec 05 2020 3:32am
Forum: EV Business World
Topic: Investing in Li Batteries
Replies: 88
Views: 20678

Re: Investing in Li Batteries

Don't give up to easily, the money is always were people are not looking. Then later they say I should have done that. We will have more batteries. Maybe I should poke around looking for opportunities. I could use more money.
by ZeroEm
Dec 03 2020 7:17am
Forum: EV Business World
Topic: Investing in Li Batteries
Replies: 88
Views: 20678

Re: Investing in Li Batteries

Due to the Covid scandle and election scandle Comments like this and others can be taken to another area. Investing, well I would be careful and see what happens when Biden is in with Janet Yellen and the others. Two years ago they dropped the interest rates to speed up the US economy trying to get...