Search found 23081 matches

by amberwolf
Feb 25, 2018 12:36 pm
Forum: E-Bike General Discussion
Topic: Can anyone Compare Contrast current versions of MAC/BMC/Ezee
Replies: 5
Views: 82

Re: Can anyone Compare Contrast current versions of MAC/BMC/Ezee

There are a lot of ways a middrive can be made, and they don't have to be mounted on the bottom bracket or hang below the bike. If you were to mount the motor in front of the tire behind the seatpost just below the seatstays, it'd clear everything I can see in pics a google image search finds. How l...
by amberwolf
Feb 25, 2018 12:28 pm
Forum: Items for Sale - New
Topic: MXUS 3K Turbo (V3) 45mm Direct Drive Hub Motor
Replies: 173
Views: 24715

Re: MXUS 3K Turbo (V3) 45mm Direct Drive Hub Motor

A bad connection in the wiring from the controller to the halls would do exactly that, though it's unlikely both sets of sensors would be bad at the motor end (either wires or sensors). The bad connection would be intermittent, and so would do exactly what you are seeing. It could be anywhere from t...
by amberwolf
Feb 25, 2018 12:20 pm
Forum: E-Bike Technical
Topic: Speed control with a potentiometer
Replies: 25
Views: 414

Re: Speed control with a potentiometer

Usually U V W pads are the hall sensor pads, so if that wire goes there, it's probably not the throttle connector, it's probably for the hall sensors.

If that holds for this controller, either they wired it wrong or the wiring diagram you have for it is showing you the wrong connector to use.
by amberwolf
Feb 25, 2018 1:29 am
Forum: E-Bike General Discussion
Topic: Can anyone Compare Contrast current versions of MAC/BMC/Ezee
Replies: 5
Views: 82

Re: Can anyone Compare Contrast current versions of MAC/BMC/Ezee

From what I recall, they are very similar. But parts for teh MAC are likely easier to get hold of, should anything go wrong. (some parts between them might be interchangeable, but I don't know that for sure). I know you say it's not possible with the frame, but something you might consider is using ...
by amberwolf
Feb 25, 2018 1:13 am
Forum: E-Bike Technical
Topic: Help Identifying Controller Wiring
Replies: 6
Views: 102

Re: Help Identifying Controller Wiring

any idea if the 2x 3pin jst could be used for brake lever engine cutoff and how since three throttle connections looks wrong. Throttle and brake will be two completely different connections (possibly with common ground, or common +5v) If these are all wired to the same points then they are the same...
by amberwolf
Feb 24, 2018 2:20 pm
Forum: Battery Technology
Topic: SuperCapacitor
Replies: 2
Views: 70

Re: SuperCapacitor

Sounds defective if it's leaking that much current.
by amberwolf
Feb 24, 2018 2:12 pm
Forum: Battery Technology
Topic: greasy orange dirt
Replies: 7
Views: 120

Re: greasy orange dirt

Does the system actually measure each cell's voltage? Or is it measuring the whole pack voltage? (and basing cutoff on 3.6v x number-of-cells) If the former, then you wouldn't get overcharge, but you could have other cells that are undercharged, and if there's a severe enough imbalance, could be ove...
by amberwolf
Feb 24, 2018 2:05 pm
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 108
Views: 3324

Re: Single-speed track stealth ultralight

This should work, but it's only a 30-second thought, so I might've missed something: Setup a voltage source that equals your full throttle voltage as a resistor divider across the throttle output. Four resistors in series between throttle ground and throttle power. The top and bottom calculated for ...
by amberwolf
Feb 24, 2018 4:20 am
Forum: E-Bike General Discussion
Topic: SURU electric bike
Replies: 17
Views: 814

Re: SURU electric bike

Why motorcycle wheels and 78 pounds for 20 mph? you would want to run moped wheels and tires for durability and because of the bikes weight.. bicycle tires would likely not hold up well for long.. Well, if you used bicycle wheels and tires it'd shave off a significant (if small) amount of that weig...
by amberwolf
Feb 24, 2018 3:35 am
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 108
Views: 3324

Re: Single-speed track stealth ultralight

I'm thinking a thumb or button throttle may be more ergonomic in the long run. YOu can get thumb tabs for halftwist throttles. Some are simple plastic stuff that snaps on. Some from the mtoorcycle world are rubber clamp-on stuff (actually meant for "cruise control" but they'll work as thumbtabs too...
by amberwolf
Feb 24, 2018 3:31 am
Forum: Battery Technology
Topic: greasy orange dirt
Replies: 7
Views: 120

Re: greasy orange dirt

It looks similar to the crystalline deposits I've seen on leaking batteries of assorted chemistries over the years. I suspect electrolyte is leaking from around the terminal/plastic interface, and most likley is being forced out when the cell swells up at portions of teh charge or discharge. (since ...
by amberwolf
Feb 24, 2018 3:23 am
Forum: E-Bike General Discussion
Topic: Catastrophic Fork Dropout Crack - Torque Arm Saves the Day
Replies: 21
Views: 374

Re: Catastrophic Fork Dropout Crack - Torque Arm Saves the Day

Most of the time, people don't have problems with them. But when they do, they often *really* do. ;) Like most failures, it takes the right combination of things to actually fail. And sometimes it takes a long time to fail, rather than instantaneously. One helpful thing for many is that even if they...
by amberwolf
Feb 24, 2018 3:08 am
Forum: E-Bike Technical
Topic: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier
Replies: 687
Views: 64176

Re: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier

If things work out, I've got a fatbike non-suspension fork coming to test swapping out for the Suntour XCV suspension fork. This means the entire trike won't have any suspension, but it'll stiffen the front end up for braking (fair bit of wiggle right now that costs me control when near the limit of...
by amberwolf
Feb 24, 2018 2:33 am
Forum: E-Bike General Discussion
Topic: Cheap suspension fork 1-1/8 threaded
Replies: 17
Views: 220

Re: Cheap suspension fork 1-1/8 threaded

What he said. ^^ FWIW, a pretty good one is FSA's The Pig headset; it's one of very few brand new parts I've ever bought and it was worth it's small price. IIRC I got mine from "Trail This" (would have to go look). But you probably don't need one as tough as that. Regarding Suntour forks in general,...
by amberwolf
Feb 24, 2018 2:05 am
Forum: E-Vehicles General Discussion
Topic: Cit-Kar: four-wheeled pedelec
Replies: 3
Views: 63

Re: Cit-Kar: four-wheeled pedelec

Too bad it's illegal in a lot of places (bicycle-class stuff frequently being limited to three wheels in contact with the ground, but not meeting car requirements either).

I wonder exactly which places it actually could be legally used on the roads?
by amberwolf
Feb 24, 2018 1:52 am
Forum: E-Bike General Discussion
Topic: Catastrophic Fork Dropout Crack - Torque Arm Saves the Day
Replies: 21
Views: 374

Re: Catastrophic Fork Dropout Crack - Torque Arm Saves the Day

Ah--if "torque arms" was meant rather than "dropouts", then my post above can be ignored as irrelevant.
by amberwolf
Feb 24, 2018 1:40 am
Forum: General Discussion
Topic: Repurposing 13s4p and 14s4p 18650 packs for 12v duty
Replies: 3
Views: 72

Re: Repurposing 13s4p and 14s4p 18650 packs for 12v duty

If the switch is not switching under load, then a lesser switch can be used. If the switch must be able to disconnect or connect with a load (current flowing thru the switch), then the switch has to be rated to disconnect that voltage (or higher) at that current (or higher) to be guaranteed to perfo...
by amberwolf
Feb 24, 2018 1:07 am
Forum: E-Bike General Discussion
Topic: Catastrophic Fork Dropout Crack - Torque Arm Saves the Day
Replies: 21
Views: 374

Re: Catastrophic Fork Dropout Crack - Torque Arm Saves the Day

1: The final step was to heat the dropouts to brown hot and case harden them with a water immersion. This would be more likely to weaken the aluminum of the dropouts; taking whatever hardness the aluminum of the fork originally had away and making them much softer and easier for the axle twisting t...
by amberwolf
Feb 24, 2018 1:01 am
Forum: E-Bike Technical
Topic: Help Identifying Controller Wiring
Replies: 6
Views: 102

Re: Help Identifying Controller Wiring

The 3pin molex with red/green/black and the two 2pin jst with red/green/black wires are connected on the bottom and top in the same location, on the board it shows: black -/ red +/ green T. Dont know how that works unless the green is throttle signal and black/red will open the cirquit -/+ when bra...
by amberwolf
Feb 23, 2018 5:15 am
Forum: E-Bike Technical
Topic: CAv3 Torque PAS + dual throttles 2WD for SB Cruiser
Replies: 1
Views: 79

Re: CAv3 Torque PAS + dual throttles 2WD for SB Cruiser

This is the basic wiring as things are now, except there's not yet any PAS sensor (and it's a CA v2.3 not a v3). Blocks are labelled, wires represent about how it's actually wired on teh trike, includig relative placment of items. Some tings like fuses and breakers/switches are not shown. At some po...
by amberwolf
Feb 23, 2018 4:33 am
Forum: Motor Technology
Topic: How to reverse motor direction - old Chinese car
Replies: 10
Views: 195

Re: How to reverse motor direction - old Chinese car

Before you spend a bunch of time with wiring that probably isn't the issue:

As brought up in a previous post, do those four bolt holes on the resolver ring have matching holes (or pins) in the main housing?

If so, try lining up the resolver ring with those.
by amberwolf
Feb 23, 2018 4:26 am
Forum: E-Bike Technical
Topic: help sabvoton 72200 meltdown!
Replies: 6
Views: 146

Re: help sabvoton 72200 meltdown!

Well, if only one phase leg was connected, no current could flow, so nothing could fail. What is more likely is that the other two unconnected phases touched each other and shorted together, or both were touching the same piece of metal somewhere on the bike, shorting together. (or one or both were ...
by amberwolf
Feb 23, 2018 4:10 am
Forum: General Discussion
Topic: Aquatune - Convert Water to Hydrogen for $600 + $400 labor
Replies: 7
Views: 155

Re: Aquatune - Convert Water to Hydrogen for $600 + $400 labor

Regarding the HHO stuff in cars....there was a gentleman I knew several years ago that was spending quite a bit of time and money setting up various versions of systems in his cars and trucks, and claiming all sorts of improvements in how they ran and mileage, etc. But his wife didn't approve of the...
by amberwolf
Feb 23, 2018 3:47 am
Forum: E-Bike General Discussion
Topic: Catastrophic Fork Dropout Crack - Torque Arm Saves the Day
Replies: 21
Views: 374

Re: Catastrophic Fork Dropout Crack - Torque Arm Saves the Day

I don't understand why my e-bike keeps cracking up,... literately. The usual reason for that specific crack type is motor torque (axle torque) against the tips of the dropouts working them back and forth, because if the fit of a torque arm is not absolutely perfect, the axle can still wiggle just a...