Search found 13703 matches

by John in CR
Nov 16 2019 5:55pm
Forum: Items for Sale - New
Topic: qs 3kw 70H mid drive
Replies: 17
Views: 842

Re: qs 3kw 70H mid drive

John in CR wrote:
Nov 14 2019 9:21pm
Sorry the pounds spelled out didn't register as a price inside my thick skull.
by John in CR
Nov 14 2019 9:21pm
Forum: Items for Sale - New
Topic: qs 3kw 70H mid drive
Replies: 17
Views: 842

Re: qs 3kw 70H mid drive

It's still available because you have no price listed, which is actually against the rules of the for sale section.
by John in CR
Nov 13 2019 6:49pm
Forum: E-Bike Technical
Topic: 3-speed switch
Replies: 7
Views: 222

Re: 3-speed switch

The middle setting of the switch is as if no switch is used. The other 2 positions short each of 2 wires to ground (the 3rd wire). How it actually plays out in use depends on how the controller is programmed for the 3 speeds. When ordering controllers, I always request that the default (position 2,...
by John in CR
Nov 13 2019 6:46pm
Forum: E-Bike Technical
Topic: 3-speed switch
Replies: 7
Views: 222

Re: 3-speed switch

The middle setting of the switch is as if no switch is used. The other 2 positions short each of 2 wires to ground (the 3rd wire). How it actually plays out in use depends on how the controller is programmed for the 3 speeds.
by John in CR
Nov 13 2019 6:41pm
Forum: E-Bike Technical
Topic: RPM-Based Current Throttle
Replies: 5
Views: 277

Re: RPM-Based Current Throttle

The Nucular controllers have the best throttle response I've ever used. I use the option with a hybrid of torque and speed throttle, so you get torque of the amount the throttle position demands as long as the corresponding speed of that throttle position isn't exceeded. It measures actual phase cur...
by John in CR
Nov 13 2019 6:23pm
Forum: E-Bike General Discussion
Topic: UK Law regarding E-Bikes
Replies: 16
Views: 424

Re: UK Law regarding E-Bikes

The thing hurting costa rica is the no license requirement, not the no type approval or other bureaucracy. We have license+insurance requirement in a few EU countries (still no reg, no type approval) and the incident rates are very, very low. 12 years and I haven't seen another homebuilt that I was...
by John in CR
Nov 12 2019 8:30pm
Forum: E-Bike General Discussion
Topic: UK Law regarding E-Bikes
Replies: 16
Views: 424

Re: UK Law regarding E-Bikes

wturber wrote:
Nov 12 2019 12:18pm
Fair enough. But your odds of getting killed in a traffic accident (on a population basis) are about five times greater in Costa Rica than in the UK . Pick yer poison.
The way I ride the odds are so close to zero that any stats you looked up don't apply no matter what vehicle I'm operating.
by John in CR
Nov 12 2019 8:51am
Forum: E-Bike General Discussion
Topic: UK Law regarding E-Bikes
Replies: 16
Views: 424

Re: UK Law regarding E-Bikes

Tommm wrote:
Nov 12 2019 8:42am
I wouldn't stop if they tried though, not letting some monkeys steal my stuff.
Can you get away with refusing to stop for police there?
by John in CR
Nov 11 2019 8:23pm
Forum: E-Bike General Discussion
Topic: UK Law regarding E-Bikes
Replies: 16
Views: 424

Re: UK Law regarding E-Bikes

I'd never live there with those ridiculous laws written with the help of hard core cyclists. The law here is above 5000W electric motor output makes it a motorcycle, and under 5kw output makes it a moto-bici, that is legal to operate. No license, no registration, no inspection, no silly pedal requir...
by John in CR
Nov 11 2019 8:04pm
Forum: Motor Technology
Topic: Elaphe's hub motors
Replies: 2
Views: 486

Re: Elaphe's hub motors

I sent a request for pricing along with more detail dyno test info on their motors. I hate when companies hide their prices. It's one thing if they sell only wholesale and don't want to undermine their distributors, but quite another when they're embarrassed to show their high price.
by John in CR
Nov 09 2019 8:28pm
Forum: E-Bike Technical
Topic: Nucular Electronics owner's thread (setup infos, FW updates, links etc.)
Replies: 205
Views: 13128

Re: Nucular Electronics owner's thread (setup infos, FW updates, links etc.)

It turns out that current with the brake on is a show stopper for my idea. Current draw with the controller on is a tiny 20mA, which is great, less than 1/8th of what I've seen with any controllers with the power potential of the Nuc 12F, however, with the ebrake applied (I use a throttle for the va...
by John in CR
Nov 08 2019 10:56pm
Forum: E-Bike Technical
Topic: Nucular Electronics owner's thread (setup infos, FW updates, links etc.)
Replies: 205
Views: 13128

Re: Nucular Electronics owner's thread (setup infos, FW updates, links etc.)

This bike is being set up to run without a display (at least for now, because I don't want my son changing settings until he gets plenty of miles under his belt), and on/off seemed a bit conflicted using a switch on K1 to gnd while using the display to change settings while disable was set up as "sw...
by John in CR
Nov 07 2019 7:45pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Vespa PX200E conversion
Replies: 5
Views: 513

Re: Vespa PX200E conversion

How heavy is the vespa in that wheel-less motorless state? I worry that you've got a pretty big weight handicap to start.

Of course go for the big motor, and put plenty of battery. You want the result to kick the crap out of any other Vespa.
by John in CR
Nov 07 2019 7:12pm
Forum: Items for Sale - Used
Topic: FS: 10x 2018 Leaf Modules 1.66kwh each
Replies: 11
Views: 416

Re: FS: 10x 2018 Leaf Modules 1.66kwh each

Did you manage to get the version with the solid gold connector bars? 8) ? At $500/module that's $12,000 for a used Nissan Leaf battery. :shock: :shock: :shock: Someone along the line seems a bit too greedy in this salvage supply line.
by John in CR
Nov 07 2019 6:55pm
Forum: E-Bike Technical
Topic: Nucular Electronics owner's thread (setup infos, FW updates, links etc.)
Replies: 205
Views: 13128

Re: Nucular Electronics owner's thread (setup infos, FW updates, links etc.)

What are you guys using for on/off switching to get absolute reliability? At least with my setup, a switch on K1 to ground doesn't always turn the bike off, often requiring a 2nd cycle of the switch. I'm not going the contactor route...too expensive and bulky and introduces new failure points. I use...
by John in CR
Nov 07 2019 5:51pm
Forum: E-Bike Technical
Topic: Nucular Electronics owner's thread (setup infos, FW updates, links etc.)
Replies: 205
Views: 13128

Re: Nucular Electronics owner's thread (setup infos, FW updates, links etc.)

VasiliSk wrote:
Nov 07 2019 3:30am
Pole pair default is 23, you should input it manually lol
Ah, that makes sense now, since so many hubmotors have that pole count. This just happened to be a motor for my son's bike, not the 10 pole pair hubmotors I use mostly.
by John in CR
Nov 07 2019 1:16am
Forum: E-Bike Technical
Topic: Nucular Electronics owner's thread (setup infos, FW updates, links etc.)
Replies: 205
Views: 13128

Nucular controller problem not saving settings

I couldn't find this issue and fix mentioned anywhere, but during my first setup controller setting changes would not stick even though during save it reported the save was successful. While going thru setup in the motor section (even without using auto setup), the motor started spinning, so be sure...
by John in CR
Nov 01 2019 3:59pm
Forum: Battery Technology
Topic: Slumming With SLA (24V - 36V - 48V)
Replies: 7
Views: 787

Re: Slumming With SLA (24V - 36V - 48V)

"Slumming" is definitely the right description. Other than nearly freel SLA to use as doorstops or for a conservatively run home pack for wind or solar, someone would have to pay me a lot of money to use SLA batts again. I don't even use them for car starter batteries anymore.
by John in CR
Oct 31 2019 5:01pm
Forum: E-Vehicles General Discussion
Topic: Is it possible: 2 Wheel skateboard w/image
Replies: 14
Views: 775

Re: Is it possible: 2 Wheel skateboard w/image

Come on guys. 2 inline wheels on fixed parallel axles won't turn. Period. With 2 wheels the tires will scrub a bit due to the different circumferences in contact with the ground, but it will still move in a straight line. The skateboard above with 7 wheels on each arched axle is a perfect example of...
by John in CR
Oct 31 2019 4:35pm
Forum: General Discussion
Topic: Recycle Lithium-ion $2.50 lb
Replies: 5
Views: 283

Re: Recycle Lithium-ion $2.50 lb

That's an awesome price, not much less that I'm purchased nearly new used and perfectly good lithium batteries. Hopefully that kind of recycling price makes its way down here.
by John in CR
Oct 30 2019 9:12pm
Forum: E-Bike Technical
Topic: How to stop motor shaft nut from coming off?
Replies: 18
Views: 462

Re: How to stop motor shaft nut from coming off?

It looks used enough to graduate to a more efficient more quiet brushless motor setup.
by John in CR
Oct 30 2019 9:06pm
Forum: E-Bike General Discussion
Topic: Home-Built Ebike - Swiss Police Suspect Drugs!
Replies: 32
Views: 1434

Re: Home-Built Ebike - Swiss Police Suspect Drugs!

Any comparison of that silliness to the fastest most powerful ebikes on the forum is quite an insult. :mrgreen:
by John in CR
Oct 28 2019 9:22pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Living with removable batteries
Replies: 3
Views: 443

Re: Living with removable batteries

To me urban environment means short distances. Now that I live much closer and don't have the 60km/day commute, none of my bikes require daily charging even if used exclusively. Removable batteries don't even cross my mind. Can't you charge at home or at work with batteries securely mounted on the b...
by John in CR
Oct 28 2019 8:59pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: AKIRA, Kanedas motorbike (budget version)
Replies: 3
Views: 380

Re: AKIRA, Kanedas motorbike (budget version)

You'll need a lot of offset to use such a slack head tube angle in the first pic. Otherwise it will have very sluggish steering and you won't be able to keep it in a straight line at low speed.
by John in CR
Oct 28 2019 8:50pm
Forum: E-Vehicles General Discussion
Topic: Is it possible: 2 Wheel skateboard w/image
Replies: 14
Views: 775

Re: Is it possible: 2 Wheel skateboard w/image

Okay so I'm having a debate with my friend whether a design like this would work, he seems to think it won't turn and Im saying it should ride great. If you lean that thing over, it will turn. How sharply it will turn is a function of wheelbase length and the qualities of the tires. Bikes turn by c...