Endless Sphere

The problem with all the silicone insulations I've handled is they are soft and easily pinched or crushed open, *and* hard to see that sort of damage in it after it happens. So it can have openings in the insulation you don't know about, until you find htem with fingers or liquids. For durable "ligh...

Sounds like we need to design and build you a frame.

Then it's probably different cells, too. :/

Look for 2WD or AWD in the thread titles. Some of the most integrated 2WDs are Teklektik's and AlanB's, with a lot of detail on exactly how things are setup. Both my trike and bike in my signature are 2WD; both use a single battery to power everything. If you use separate batteries, it's more redund...

Do any of these help?

search.php?keywords=BMW+batt*&terms=all ... mit=Search

The electric drive is a gearless hub motor & it has been stated that magnetic plug breaking would be simple enough to add, requiring a means of shorting 3 fets & channeling the resultant current to a resistor stout enough to dissipate via waste heat. You don't want to short the FETs. You want to sh...

a pair of meanwell hlg-600h-54a would probably do what you want, wired in parallel. each is 600-700w

That looks like it's just a torque washer, and should just pull off the axle. Maybe it has a set screw in it's thicker part that holds it to the axle? Can't see in the pics.

onemorejoltwarden wrote: ↑

Sep 19, 2018 10:21 am

Dallas just banned ALL MOTORIZED vehicles from parks and trails.

Good thing bicycles are usually specifically defined as NOT vehicles.

So how do you get the LED to blink the controller state flash signals ??? You don't. It will automatically flash any error condition it has. Since it says it's running sensorless, and you want it to be doing that, then it isn't signaling any errors, so there's no condition within the controller tha...

There still needs to be a slotted frame mount for them to go in, for chain tension. I would think. :?: Sure, you can still ahve a slotted frame mount, but just like a bike axle / dropout it doesn't have to resist torque. :) I really don't like the flats either, but I thought for a thousand watts of...

You might want to look at my SB Cruiser trike thread for ideas. It was really built to carry Tiny, a 100lb St Bernard, and assorted cargo (groceries, etc). It's been thru a lot of variations, but it's present one has hauled a piano in a trailer, and easily hauls one dog in the trike itself and anoth...

You could put a thermal switch on the fan so whenever air gets above whatever temperature you want, it switches on automatically. You could put a second thermal switch at a much higher temperature that shuts down the A/C units to prevent damage. My guess is 130-150F range is probably beyond their op...

One thing I'm a little unsure of now is whether or not a person can run a hub motor backwards at full speed <snip> in conjunction with the hall sensors, Works fine with any motor that has neutral timing on the sensors. All the DD hubmotors I've had appear to be. I"m not sure about geared hubs, but ...

First connect throttle directly to controller, bypassing the CA, so the CA can't be limiting the system. If the problem continues, it's not the CA causing it. If the problem stops, then something in the CA is limiting, potentially causing the issue; you'd need to review the limit flags screen to see...

FWIW, not all sensorless controllers require externally-started motion to work. Lebowksi here on ES has solved that problem for the new version of his controller. There's probably others, too, in the higher-end stuff. Regarding geared hubs and sensorless controllers, my experience so farwith one sys...

FWIW, the MXUS 5k discussion thread says it's threads are M35x1.

"Single-Speed freewheel, M35x1 Threads."viewtopic.php?f=30&t=85582&p=1251770&hi ... l#p1251770

Just based on personal experiences with flatted-axle failures, I highly recommend a completely different axle design. ;) Axle flats are a terrible way to transfer torque, and are mainly used because someone once did it because it was easy and quick and "cheap", and everyone else copied that. It does...

On the dropout part, it kinda depends on what kind of torque levels you're after, and what the specific motor you're going to use is going to have in combination with the controller and battery pack you're running it with. As well as how that specific motor is designed to do it's torque transfer. Th...

For the one in my SB Cruiser frame, I just took a cog off a generic multispeed freewheel, https://endless-sphere.com/forums/download/file.php?id=202692 removed the tabs from it's inner circumference, and welded it to the flange. https://endless-sphere.com/forums/download/file.php?id=203309 I'd tried...

She's pretty similar! Same color , although the headlight is on the handlebars, not mounted to the front like that :). Specifically, she's one of these: Unfortunately, like the first post's image, it just comes up as a minus sign in a circle. If you attach the image directly to the post, it'll show...

Yes...ask Dogman Dan about it's effects. I think it's been ten years and he's beginning recovery. :/

I don't have any machining advice, but it'll be cool to see that going. Does it look like the one Reki rides in Haibane Renmei? Or is it a different one? op-07.jpg At one time I had a rusty old '80s Honda (elite?) I wanted to convert, but I went the electric bicycle route instead. (I did use some of...

If the problem with cheaper BMS is that they won't handle the output current needed, you could use the gate drive for the insufficient output FET stage to instead drive a bit of electronics (transistor relay driver, etc) that turns a contactor on and off.

Much cheaper than the Orion system.

Ok, got to the PO so it's on it's way back now. In the meantime, I'm considering a serious change to how my hubmotors mount to the trike, partly just so I never have to deal with axles broken by torque again. Not sure I can pull it off, but here's a thread with the idea: https://endless-sphere.com/f...