Endless Sphere

I forgot to add the pics of the new cover, so: dsc08413.jpg dsc08414.jpg This cover is split just above the BB, using the old cover's bottom end for that part, and the new cover is thicker plastic cuz I dind't have any more of the same stuff I used before. Used regular bolts out of one of the HF box...

Make that months, or years, and you're probably closer.

The only thing I can find that is really broken is one really small resistor (SOT-323?) with the marking 1P5. It's probably a transistor. But...it's tough to find the actual part used just by the number on it, because the same code can mean several different devices. :( This *might* help, but it do...

How fast does the wheel spin off ground? If it's exactly the same as the on-road speed, then the controller is limiting it. THat's the most likely given the description. If it is faster, by 10-20% or so, then it may be limited by the motor's top speed at the voltage you're at, or by the power availa...

neptronix wrote: ↑

Aug 18 2019 6:41pm

ScooterMan101 wrote: ↑

Aug 18 2019 5:14pm

Here is a great example of a vehicle with angular body panels .
https://www.youtube.com/watch?v=dloH7zbn13g

That's effin' nuts

Remember Lowracer's angular velo?

I wish his pics and vids were still available...

Touring scooter? I think before you go any further, you should describe exactly what you want the scooter to do. How fast does it have to go? How far does ti have to go? How quickly does it have to accelerate to what speed? WHat kind of terrain will it be used on? (hills, etc) What kind of weather (...

All I really got done today was the new side cover for the wiring area, gorilla-taping the open "split tube" section on the back of that area until I can make a cover for it, and reinsulating the cargo seatbox inside, and cleaning up my mess (tools, parts, and wires everywhere, some of them helpfull...

The controller is both brushed/brushless and sensor or not. What controller is it? I haven't seen a complete controller that can do both brushed and brushless, though there is an old motorola chip (MC3303x) that can be built into a controller that can do that. (thread by Jeremy Harris on using that...

Question: where does the other end of the cable come out of the fork? Presumably that hole had to be enlarged, too? FWIW, forks can also fail in the legs or steerer too. There's a thread around here somewhere about a Yuba Mundo fork failing under disc braking; I think it failed between crown and dro...

Definitely the battery is the heart of the system. A good one will perform better (be capable of higher discharge with lower voltage sag (so you get more power out of it) and less heat generated, etc.), last longer lifespan, and stay balanced better (so you don't have to charge as long). More expens...

If you want to know for sure what voltage that wire hooks up to, you can open the controller and trace where the wire goes. If it's like most, that are powered off the batteryvoltage, they connect to the input of the LVPS (low voltage power supply) that generates the 12v / 5v to power the controller...

I was told by a battery pack builder that he would need to know the exact coding for the BMS in order to work with the motorcycle. If the BMS communicates (serial port, CANBUS, etc) with the motorcycle's controller or main "brain", and the bike won't operate until it receives the right info from th...

Yeah, they have trike versions too (so does UPS). There's a few threads here and there about them. I think UPS uses the Cycletruck brand. DHL has at least two or three versions I've seen posted, plus the one you show there. SB Cruiser doesnt' direclty ahve that much volume in it's cargo area, but it...

also if I may ask, sometimes when I gun the throttle, the BMS will cut off the pack, even at 40V. that doesnt seem normal over current protection. What might be causing this? Is the BMS cutting off the pack? That means there is no voltage output at all, and if you have an LCD or other display or li...

thats what I have been doing, then I connected the set to the BMS. Ok, then youre starting out with balanced cells, at exactly 4.2v each? In another post it said you charged at least one cell (pair) to 4.5v.... . what if, after riding, I have some cells that are high, and the rest at 3.7V? That mea...

During a ride and discharge, how does the BMS keep each cell at the same level? It doesn't. It only does it at end of charge. All it does during a ride is to shut off the output if one of the cells drops below the cell-level LVC for that BMS, which is usually right at the lowest voltage the cell sp...

how do I get the cells to be all balanced at 4.2V? Do I use a charger that balances the cells? I gave you a method to do that already, via the BMS, but you have to have a 42v charger. You can also use a 4.2v CC/CV supply to individually charge each cell to 4.2v. then the BMS will keep the cells bal...

I am crimping some pins for a 6-pin male JSTsm (for the cable going from the cycle analyst to the controller) and I just crimped the wire too far into the 4th pin. I am thinking maybe I should cut all of the wires and start over so that they will be the same length? or would you cut just the one? I...

I was thinking that with that one I would just have to isolate the 10V and the ground and that I could maybe just leave the other 3 wires cut but not insulated? Since it only takes a tiny bit of heatshrink and a few seconds per wire, I'd recommend doing it to all of them, if no other reason than to...

I am looking at this thread because I am trying to find a suitable rim for my rotovelo 20" 406. I want to build a wheel using the NuVinci 380 (125mm flange diameter). It will be used with a BBS02 in the front. Any rim recomendations would be welcome. Grin has these https://www.ebikes.ca/shop/electr...

The controller I have is this one. It came with the kit from AliExpress. Well, I don't know which display that is in the picture. Can't see any label for the controller so don't know what it is, either. If it's a TSDZ2 setup, then you go to the TSDZ2 thread and do what it says. If it's not a TSDZ2 ...

Thanks for the link. I originally intended to use aluminum brazing rods to put it together, but then I realized that this particular alloy does not allow for that, at least not in the presence of oxygen. Apparently magnesium in the alloy forms oxides on the surface preventing anything from sticking...

it is always good to use the gear puller hooks on the stator instead of just the side plate as it could crack. You can't use the gear puller hooks on teh stator, because the center of the gear puller has to push on teh axle which is part of the stator. You have to use them on the cover edges to pul...

Unscrew one side, then hold the tire / rim with both hands with that side up, and firmly "tap" the axle on a piece of wood that's on a concrete surface, to pop the cover seal. Don't whack it too hard or you can break the cover if it's stuck. I'm having a nightmare managing this... I've removed the ...

I don't have any links or details, but I think Jonyjoe posted about them in various threads, as have others. Dunno what they're called, maybe "relay board" would pull them up? Basically they're generic modules from China that use a relay to shut off the output at a preprogrammed point, be that volta...